// DragonX Wallet - ImGui Edition
// Copyright 2024-2026 The Hush Developers
// Released under the GPLv3

#include "i18n.h"
#include "platform.h"

#include <fstream>
#include <cstdio>
#include <cstring>
#include <nlohmann/json.hpp>

// Embedded language files
#include "embedded/lang_es.h"
#include "embedded/lang_zh.h"
#include "embedded/lang_ru.h"
#include "embedded/lang_de.h"
#include "embedded/lang_fr.h"
#include "embedded/lang_pt.h"
#include "embedded/lang_ja.h"
#include "embedded/lang_ko.h"
#include "../util/logger.h"

namespace dragonx {
namespace util {

using json = nlohmann::json;

I18n::I18n()
{
    // Register built-in languages
    // CJK glyphs are provided by the merged NotoSansCJK-Subset fallback font.
    // Cyrillic glyphs are included in the Ubuntu font glyph ranges.
    registerLanguage("en", "English");
    registerLanguage("es", "Español");
    registerLanguage("zh", "Chinese");
    registerLanguage("ru", "Russian");
    registerLanguage("de", "Deutsch");
    registerLanguage("fr", "Français");
    registerLanguage("pt", "Português");
    registerLanguage("ja", "Japanese");
    registerLanguage("ko", "Korean");
    
    // Load default English strings (built-in fallback)
    loadLanguage("en");
}

I18n& I18n::instance()
{
    static I18n instance;
    return instance;
}

bool I18n::loadLanguage(const std::string& locale)
{
    // Try to load from file: CWD-relative first, then exe-relative
    std::string rel_path = "res/lang/" + locale + ".json";
    std::string exe_path = Platform::getExecutableDirectory() + "/" + rel_path;

    // Try both paths; prefer whichever opens successfully
    for (const auto& lang_file : { rel_path, exe_path }) {
        std::ifstream file(lang_file);
        if (!file.is_open()) continue;

        try {
            json j;
            file >> j;

            // Load English built-in as fallback base for non-English
            if (locale != "en") {
                loadBuiltinEnglish();
            } else {
                strings_.clear();
            }
            for (auto& [key, value] : j.items()) {
                if (value.is_string()) {
                    strings_[key] = value.get<std::string>();
                }
            }

            current_locale_ = locale;
            DEBUG_LOGF("Loaded language file: %s (%zu strings)\n", lang_file.c_str(), strings_.size());
            return true;

        } catch (const std::exception& e) {
            DEBUG_LOGF("Error parsing language file %s: %s\n", lang_file.c_str(), e.what());
        }
    }
    
    // Try embedded language data
    const unsigned char* embedded_data = nullptr;
    unsigned int embedded_size = 0;
    
    if (locale == "es") {
        embedded_data = res_lang_es_json;
        embedded_size = res_lang_es_json_len;
    } else if (locale == "zh") {
        embedded_data = res_lang_zh_json;
        embedded_size = res_lang_zh_json_len;
    } else if (locale == "ru") {
        embedded_data = res_lang_ru_json;
        embedded_size = res_lang_ru_json_len;
    } else if (locale == "de") {
        embedded_data = res_lang_de_json;
        embedded_size = res_lang_de_json_len;
    } else if (locale == "fr") {
        embedded_data = res_lang_fr_json;
        embedded_size = res_lang_fr_json_len;
    } else if (locale == "pt") {
        embedded_data = res_lang_pt_json;
        embedded_size = res_lang_pt_json_len;
    } else if (locale == "ja") {
        embedded_data = res_lang_ja_json;
        embedded_size = res_lang_ja_json_len;
    } else if (locale == "ko") {
        embedded_data = res_lang_ko_json;
        embedded_size = res_lang_ko_json_len;
    }
    
    if (embedded_data != nullptr && embedded_size > 0) {
        try {
            std::string json_str(reinterpret_cast<const char*>(embedded_data), embedded_size);
            json j = json::parse(json_str);
            
            // Load English built-in as fallback base for non-English
            if (locale != "en") {
                loadBuiltinEnglish();
            } else {
                strings_.clear();
            }
            for (auto& [key, value] : j.items()) {
                if (value.is_string()) {
                    strings_[key] = value.get<std::string>();
                }
            }
            
            current_locale_ = locale;
            DEBUG_LOGF("Loaded embedded language: %s (%zu strings)\n", locale.c_str(), strings_.size());
            return true;
            
        } catch (const std::exception& e) {
            DEBUG_LOGF("Error parsing embedded language %s: %s\n", locale.c_str(), e.what());
        }
    }
    
    // If English, use built-in strings
    if (locale == "en") {
        loadBuiltinEnglish();
        current_locale_ = "en";
        return true;
    }
    
    return false;
}

void I18n::loadBuiltinEnglish()
{
        strings_.clear();
        
        // Navigation & Tabs
        strings_["overview"] = "Overview";
        strings_["balance"] = "Balance";
        strings_["send"] = "Send";
        strings_["receive"] = "Receive";
        strings_["transactions"] = "Transactions";
        strings_["history"] = "History";
        strings_["mining"] = "Mining";
        strings_["peers"] = "Peers";
        strings_["market"] = "Market";
        strings_["settings"] = "Settings";
        strings_["console"] = "Console";
        strings_["tools"] = "TOOLS";
        strings_["advanced"] = "ADVANCED";
        
        // Settings sections
        strings_["appearance"] = "APPEARANCE";
        strings_["theme_language"] = "THEME & LANGUAGE";
        strings_["advanced_effects"] = "Advanced Effects...";
        strings_["tools_actions"] = "Tools & Actions...";
        strings_["wallet"] = "WALLET";
        strings_["node_security"] = "NODE & SECURITY";
        strings_["node"] = "NODE";
        strings_["security"] = "SECURITY";
        strings_["explorer"] = "EXPLORER";
        strings_["about"] = "About";
        strings_["backup_data"] = "BACKUP & DATA";
        strings_["balance_layout"] = "Balance Layout";
        strings_["low_spec_mode"] = "Low-spec mode";
        strings_["simple_background"] = "Simple background";
        strings_["console_scanline"] = "Console scanline";
        strings_["theme_effects"] = "Theme effects";
        strings_["acrylic"] = "Acrylic";
        strings_["noise"] = "Noise";
        strings_["ui_opacity"] = "UI Opacity";
        strings_["window_opacity"] = "Window Opacity";
        strings_["font_scale"] = "Font Scale";
        strings_["refresh"] = "Refresh";
        strings_["website"] = "Website";
        strings_["report_bug"] = "Report Bug";
        strings_["save_settings"] = "Save Settings";
        strings_["reset_to_defaults"] = "Reset to Defaults";
        
        // Wallet settings
        strings_["save_z_transactions"] = "Save shielded tx history";
        strings_["auto_shield"] = "Auto-shield";
        strings_["use_tor"] = "Use Tor";
        strings_["keep_daemon"] = "Keep daemon running";
        strings_["stop_external"] = "Stop external daemon";
        strings_["verbose_logging"] = "Verbose logging";
        strings_["mine_when_idle"] = "Mine when idle";
        strings_["setup_wizard"] = "Run Setup Wizard...";
        
        // RPC / Explorer settings
        strings_["rpc_host"] = "Host";
        strings_["rpc_port"] = "Port";
        strings_["rpc_user"] = "Username";
        strings_["rpc_pass"] = "Password";
        strings_["transaction_url"] = "Transaction URL";
        strings_["address_url"] = "Address URL";
        strings_["custom_fees"] = "Allow custom transaction fees";
        strings_["fetch_prices"] = "Fetch price data from CoinGecko";
        strings_["block_explorer"] = "Block Explorer";
        strings_["test_connection"] = "Test Connection";
        strings_["rescan"] = "Rescan Blockchain";
        
        // Settings: buttons
        strings_["settings_address_book"] = "Address Book...";
        strings_["settings_validate_address"] = "Validate Address...";
        strings_["settings_request_payment"] = "Request Payment...";
        strings_["settings_shield_mining"] = "Shield Mining...";
        strings_["settings_merge_to_address"] = "Merge to Address...";
        strings_["settings_clear_ztx"] = "Clear Z-Tx History";
        strings_["settings_import_key"] = "Import Key...";
        strings_["settings_export_key"] = "Export Key...";
        strings_["settings_export_all"] = "Export All...";
        strings_["settings_backup"] = "Backup...";
        strings_["settings_export_csv"] = "Export CSV...";
        strings_["settings_encrypt_wallet"] = "Encrypt Wallet";
        strings_["settings_change_passphrase"] = "Change Passphrase";
        strings_["settings_lock_now"] = "Lock Now";
        strings_["settings_remove_encryption"] = "Remove Encryption";
        strings_["settings_set_pin"] = "Set PIN";
        strings_["settings_change_pin"] = "Change PIN";
        strings_["settings_remove_pin"] = "Remove PIN";
        strings_["settings_restart_daemon"] = "Restart daemon";
        strings_["clear_anyway"] = "Clear Anyway";
        
        // Settings: labels / text
        strings_["settings_builtin"] = "Built-in";
        strings_["settings_custom"] = "Custom";
        strings_["settings_not_found"] = "Not found";
        strings_["settings_idle_after"] = "after";
        strings_["settings_not_encrypted"] = "Not encrypted";
        strings_["settings_locked"] = "Locked";
        strings_["settings_unlocked"] = "Unlocked";
        strings_["settings_quick_unlock_pin"] = "Quick-unlock PIN";
        strings_["settings_pin_active"] = "PIN";
        strings_["settings_encrypt_first_pin"] = "Encrypt wallet first to enable PIN";
        strings_["incorrect_pin"] = "Incorrect PIN";
        strings_["incorrect_passphrase"] = "Incorrect passphrase";
        strings_["pin_not_set"] = "PIN not set. Use passphrase to unlock.";
        strings_["restarting_after_encryption"] = "Restarting daemon after encryption...";
        strings_["force_quit"] = "Force Quit";
        strings_["force_quit_warning"] = "This will immediately kill the daemon without a clean shutdown. May require a blockchain resync.";
        strings_["force_quit_confirm_title"] = "Force Quit?";
        strings_["force_quit_confirm_msg"] = "This will immediately kill the daemon without a clean shutdown.\nThis may corrupt the blockchain index and require a resync.";
        strings_["force_quit_yes"] = "Force Quit";
        strings_["reduce_motion"] = "Reduce Motion";
        strings_["tt_reduce_motion"] = "Disable animated transitions and balance lerp for accessibility";
        strings_["ago"] = "ago";
        strings_["wizard_daemon_start_failed"] = "Failed to start daemon \xe2\x80\x94 it will be retried automatically";
        strings_["settings_data_dir"] = "Data Dir:";
        strings_["settings_wallet_size_label"] = "Wallet Size:";
        strings_["settings_debug_changed"] = "Debug categories changed \xe2\x80\x94 restart daemon to apply";
        strings_["settings_auto_detected"] = "Auto-detected from DRAGONX.conf";
        strings_["settings_visual_effects"] = "Visual Effects";
        strings_["settings_acrylic_level"] = "Acrylic Level:";
        strings_["settings_noise_opacity"] = "Noise Opacity:";
        strings_["settings_privacy"] = "Privacy";
        strings_["settings_other"] = "Other";
        strings_["settings_rpc_connection"] = "RPC Connection";
        strings_["settings_configure_rpc"] = "Configure connection to dragonxd daemon";
        strings_["settings_wallet_maintenance"] = "Wallet Maintenance";
        strings_["settings_wallet_info"] = "Wallet Info";
        strings_["settings_block_explorer_urls"] = "Block Explorer URLs";
        strings_["settings_configure_explorer"] = "Configure external block explorer links";
        strings_["settings_auto_lock"] = "AUTO-LOCK";
        strings_["timeout_off"] = "Off";
        strings_["timeout_1min"] = "1 min";
        strings_["timeout_5min"] = "5 min";
        strings_["timeout_15min"] = "15 min";
        strings_["timeout_30min"] = "30 min";
        strings_["timeout_1hour"] = "1 hour";
        strings_["slider_off"] = "Off";
        strings_["settings_wallet_file_size"] = "Wallet file size: %s";
        strings_["settings_wallet_location"] = "Wallet location: %s";
        strings_["settings_rpc_note"] = "Note: Connection settings are usually auto-detected from DRAGONX.conf";
        strings_["settings_explorer_hint"] = "URLs should include a trailing slash. The txid/address will be appended.";
        strings_["settings_connection"] = "Connection";
        strings_["settings_reduce_transparency"] = "Reduce transparency";
        strings_["settings_save_shielded_local"] = "Save shielded transaction history locally";
        strings_["settings_auto_shield_funds"] = "Auto-shield transparent funds";
        strings_["settings_use_tor_network"] = "Use Tor for network connections";
        strings_["settings_gradient_bg"] = "Gradient bg";
        
        // Settings: tooltips
        strings_["tt_theme_hotkey"] = "Hotkey: Ctrl+Left/Right to cycle themes";
        strings_["tt_layout_hotkey"] = "Hotkey: Left/Right arrow keys to cycle Balance layouts";
        strings_["tt_language"] = "Interface language for the wallet UI";
        strings_["tt_scan_themes"] = "Scan for new themes.\nPlace theme folders in:\n%s";
        strings_["tt_low_spec"] = "Disable all heavy visual effects\nHotkey: Ctrl+Shift+Down";
        strings_["tt_simple_bg"] = "Use a simple gradient for the background\nHotkey: Ctrl+Up";
        strings_["tt_simple_bg_alt"] = "Use a gradient version of the theme background image\nHotkey: Ctrl+Up";
        strings_["tt_scanline"] = "CRT scanline effect in console";
        strings_["tt_theme_effects"] = "Shimmer, glow, hue-cycling per theme";
        strings_["tt_blur"] = "Blur amount (0%% = off, 100%% = maximum)";
        strings_["tt_noise"] = "Grain texture intensity (0%% = off, 100%% = maximum)";
        strings_["tt_ui_opacity"] = "Card and sidebar opacity (100%% = fully opaque, lower = more see-through)";
        strings_["tt_window_opacity"] = "Background opacity (lower = desktop visible through window)";
        strings_["tt_font_scale"] = "Scale all text and UI (1.0x = default, up to 1.5x). Hotkey: Alt + Scroll Wheel";
        strings_["tt_custom_theme"] = "Custom theme active";
        strings_["tt_address_book"] = "Manage saved addresses for quick sending";
        strings_["tt_validate"] = "Check if a DragonX address is valid";
        strings_["tt_request_payment"] = "Generate a payment request with QR code";
        strings_["tt_shield_mining"] = "Move transparent mining rewards to a shielded address";
        strings_["tt_merge"] = "Consolidate multiple UTXOs into one address";
        strings_["tt_clear_ztx"] = "Delete locally cached z-transaction history";
        strings_["tt_save_ztx"] = "Store z-address transaction history locally for faster loading";
        strings_["tt_auto_shield"] = "Automatically move transparent balance to shielded addresses for privacy";
        strings_["tt_tor"] = "Route daemon connections through the Tor network for anonymity";
        strings_["tt_keep_daemon"] = "Daemon will still stop when running the setup wizard";
        strings_["tt_stop_external"] = "Applies when connecting to a daemon\nyou started outside this wallet";
        strings_["tt_verbose"] = "Log detailed connection diagnostics,\ndaemon state, and port owner info\nto the Console tab";
        strings_["tt_mine_idle"] = "Automatically start mining when the\nsystem is idle (no keyboard/mouse input)";
        strings_["tt_idle_delay"] = "How long to wait before starting mining";
        strings_["tt_wizard"] = "Re-run the initial setup wizard\nDaemon will be restarted";
        strings_["tt_open_dir"] = "Click to open in file explorer";
        strings_["tt_rpc_host"] = "Hostname of the DragonX daemon";
        strings_["tt_rpc_user"] = "RPC authentication username";
        strings_["tt_rpc_port"] = "Port for daemon RPC connections";
        strings_["tt_rpc_pass"] = "RPC authentication password";
        strings_["tt_test_conn"] = "Verify the RPC connection to the daemon";
        strings_["tt_rescan"] = "Rescan the blockchain for missing transactions";
        strings_["tt_delete_blockchain"] = "Delete all blockchain data and start a fresh sync. Your wallet.dat and config are preserved.";
        strings_["delete_blockchain"] = "Delete Blockchain";
        strings_["delete_blockchain_confirm"] = "Delete & Resync";
        strings_["confirm_delete_blockchain_title"] = "Delete Blockchain Data";
        strings_["confirm_delete_blockchain_msg"] = "This will stop the daemon, delete all blockchain data (blocks, chainstate, peers), and start a fresh sync from scratch. This can take several hours to complete.";
        strings_["confirm_delete_blockchain_safe"] = "Your wallet.dat, config, and transaction history are safe and will not be deleted.";
        strings_["tt_encrypt"] = "Encrypt wallet.dat with a passphrase";
        strings_["tt_change_pass"] = "Change the wallet encryption passphrase";
        strings_["tt_lock"] = "Lock the wallet immediately";
        strings_["tt_remove_encrypt"] = "Remove encryption and store wallet unprotected";
        strings_["tt_auto_lock"] = "Lock wallet after this much inactivity";
        strings_["tt_set_pin"] = "Set a 4-8 digit PIN for quick unlock";
        strings_["tt_change_pin"] = "Change your unlock PIN";
        strings_["tt_remove_pin"] = "Remove PIN and require passphrase to unlock";
        strings_["tt_tx_url"] = "Base URL for viewing transactions in a block explorer";
        strings_["tt_addr_url"] = "Base URL for viewing addresses in a block explorer";
        strings_["tt_custom_fees"] = "Enable manual fee entry when sending transactions";
        strings_["tt_fetch_prices"] = "Retrieve DRGX market prices from CoinGecko API";
        strings_["tt_block_explorer"] = "Open the DragonX block explorer in your browser";
        strings_["tt_website"] = "Open the DragonX website";
        strings_["tt_report_bug"] = "Report an issue on the project tracker";
        strings_["tt_save_settings"] = "Save all settings to disk";
        strings_["tt_reset_settings"] = "Reload settings from disk (undo unsaved changes)";
        strings_["tt_debug_collapse"] = "Collapse debug logging options";
        strings_["tt_debug_expand"] = "Expand debug logging options";
        strings_["tt_restart_daemon"] = "Restart the daemon to apply debug logging changes";
        
        // Settings: additional tooltips (keys/data row)
        strings_["tt_import_key"] = "Import a private key (zkey or tkey) into this wallet";
        strings_["tt_export_key"] = "Export the private key for the selected address";
        strings_["tt_export_all"] = "Export all private keys to a file";
        strings_["tt_backup"] = "Create a backup of your wallet.dat file";
        strings_["tt_export_csv"] = "Export transaction history as a CSV spreadsheet";
        
        // Settings: about / debug
        strings_["settings_about_text"] = "A shielded cryptocurrency wallet for DragonX (DRGX), built with Dear ImGui for a lightweight, portable experience.";
        strings_["settings_copyright"] = "Copyright 2024-2026 DragonX Developers  |  GPLv3 License";
        strings_["debug_logging"] = "DEBUG LOGGING";
        strings_["settings_debug_select"] = "Select categories to enable daemon debug logging (-debug= flags).";
        strings_["settings_debug_restart_note"] = "Changes take effect after restarting the daemon.";
        
        // Settings window (legacy dialog) descriptions
        strings_["settings_language_note"] = "Note: Some text requires restart to update";
        strings_["settings_solid_colors_desc"] = "Use solid colors instead of blur effects (accessibility)";
        strings_["settings_gradient_desc"] = "Replace textured backgrounds with smooth gradients";
        strings_["settings_save_shielded_desc"] = "Stores z-addr transactions in a local file for viewing";
        strings_["settings_auto_shield_desc"] = "Automatically move transparent funds to shielded addresses";
        strings_["settings_tor_desc"] = "Route all connections through Tor for enhanced privacy";
        strings_["settings_rescan_desc"] = "Rescan blockchain for missing transactions";
        strings_["settings_clear_ztx_long"] = "Clear Saved Z-Transaction History";
        strings_["settings_clear_ztx_desc"] = "Delete locally stored shielded transaction data";
        strings_["settings_wallet_not_found"] = "Wallet file not found";
        
        // Balance tab: address actions
        strings_["hide_zero_balances"] = "Hide 0 Balances";
        strings_["restore_address"] = "Restore Address";
        strings_["hide_address"] = "Hide Address";
        strings_["remove_favorite"] = "Remove Favorite";
        strings_["favorite_address"] = "Favorite Address";
        strings_["show_hidden"] = "Show Hidden (%d)";
        
        // Misc dialog strings
        strings_["shield_operation_id"] = "Operation ID: %s";
        strings_["peers_peer_label"] = "Peer: %s";
        strings_["key_export_click_retrieve"] = "Click to retrieve the key from your wallet";
        strings_["backup_source"] = "Source: %s";
        strings_["export_keys_progress"] = "Exporting %d/%d...";
        strings_["import_key_progress"] = "Importing %d/%d...";
        strings_["block_click_copy"] = "Click to copy";
        strings_["confirm_clear_ztx_title"] = "Confirm Clear Z-Tx History";
        strings_["confirm_clear_ztx_warning1"] = "Clearing z-transaction history may cause your shielded balance to show as 0 until a wallet rescan is performed.";
        strings_["confirm_clear_ztx_warning2"] = "If this happens, you will need to re-import your z-address private keys with rescan enabled to recover your balance.";
        
        // Send tab
        strings_["sending_from"] = "SENDING FROM";
        strings_["recent_sends"] = "RECENT SENDS";
        strings_["recipient"] = "RECIPIENT";
        strings_["memo_optional"] = "MEMO (OPTIONAL)";
        strings_["no_recent_sends"] = "No recent sends";
        strings_["network_fee"] = "NETWORK FEE";
        strings_["amount_details"] = "AMOUNT DETAILS";
        strings_["not_connected_to_daemon"] = "Not connected to daemon";
        strings_["select_source_address"] = "Select a source address...";
        strings_["no_addresses_with_balance"] = "No addresses with balance";
        strings_["blockchain_syncing"] = "Blockchain syncing (%.1f%%)... Balances may be inaccurate.";
        strings_["wallet_empty"] = "Your wallet is empty";
        strings_["wallet_empty_hint"] = "Switch to Receive to get your address and start receiving funds.";
        strings_["go_to_receive"] = "Go to Receive";
        strings_["review_send"] = "Review Send";
        strings_["fee_low"] = "Low";
        strings_["fee_normal"] = "Normal";
        strings_["fee_high"] = "High";
        strings_["submitting_transaction"] = "Submitting transaction...";
        strings_["transaction_sent_msg"] = "Transaction sent!";
        strings_["copy_error"] = "Copy Error";
        strings_["dismiss"] = "Dismiss";
        strings_["clear_form_confirm"] = "Clear all form fields?";
        strings_["yes_clear"] = "Yes, Clear";
        strings_["keep"] = "Keep";
        strings_["undo_clear"] = "Undo Clear";
        
        // Receive tab
        strings_["recent_received"] = "RECENT RECEIVED";
        strings_["payment_request"] = "PAYMENT REQUEST";
        strings_["copy"] = "Copy";
        strings_["new"] = "+ New";
        strings_["share"] = "Share";
        strings_["select_receiving_address"] = "Select a receiving address...";
        strings_["no_addresses_match"] = "No addresses match filter";
        strings_["no_recent_receives"] = "No recent receives";
        strings_["waiting_for_daemon"] = "Waiting for daemon connection...";
        strings_["addresses_appear_here"] = "Your receiving addresses will appear here once connected.";
        strings_["loading_addresses"] = "Loading addresses...";
        strings_["clear_request"] = "Clear Request";
        strings_["copy_uri"] = "Copy URI";
        strings_["qr_unavailable"] = "QR unavailable";
        strings_["received_label"] = "Received";
        
        // Transactions tab
        strings_["no_transactions"] = "No transactions found";
        strings_["no_matching"] = "No matching transactions";
        strings_["transaction_id"] = "TRANSACTION ID";
        strings_["search_placeholder"] = "Search...";
        strings_["all_filter"] = "All";
        strings_["sent_filter"] = "Sent";
        strings_["received_filter"] = "Received";
        strings_["mined_filter"] = "Mined";
        strings_["export_csv"] = "Export CSV";
        strings_["transactions_upper"] = "TRANSACTIONS";
        strings_["received_upper"] = "RECEIVED";
        strings_["sent_upper"] = "SENT";
        strings_["mined_upper"] = "MINED";
        strings_["from_upper"] = "FROM";
        strings_["to_upper"] = "TO";
        strings_["shielded_to"] = "SHIELDED TO";
        strings_["address_upper"] = "ADDRESS";
        strings_["memo_upper"] = "MEMO";
        strings_["shielded_type"] = "Shielded";
        strings_["recv_type"] = "Recv";
        strings_["sent_type"] = "Sent";
        strings_["immature_type"] = "Immature";
        strings_["mined_type"] = "Mined";
        strings_["mature"] = "Mature";
        strings_["copy_txid"] = "Copy TxID";
        strings_["view_details"] = "View Details";
        strings_["full_details"] = "Full Details";
        strings_["showing_transactions"] = "Showing %d\xe2\x80\x93%d of %d transactions (total: %zu)";
        strings_["txs_count"] = "%d txs";
        strings_["conf_count"] = "%d conf";
        strings_["confirmations_display"] = "%d confirmations  |  %s";
        
        // Balance Tab
        strings_["summary"] = "Summary";
        strings_["shielded"] = "Shielded";
        strings_["transparent"] = "Transparent";
        strings_["total"] = "Total";
        strings_["unconfirmed"] = "Unconfirmed";
        strings_["your_addresses"] = "Your Addresses";
        strings_["z_addresses"] = "Z-Addresses";
        strings_["t_addresses"] = "T-Addresses";
        strings_["no_addresses"] = "No addresses found. Create one using the buttons above.";
        strings_["new_z_address"] = "New Z-Address";
        strings_["new_t_address"] = "New T-Address";
        strings_["type"] = "Type";
        strings_["address"] = "Address";
        strings_["copy_address"] = "Copy Full Address";
        strings_["send_from_this_address"] = "Send From This Address";
        strings_["export_private_key"] = "Export Private Key";
        strings_["export_viewing_key"] = "Export Viewing Key";
        strings_["show_qr_code"] = "Show QR Code";
        strings_["not_connected"] = "Not connected to daemon...";
        
        // Send Tab
        strings_["pay_from"] = "Pay From";
        strings_["send_to"] = "Send To";
        strings_["amount"] = "Amount";
        strings_["memo"] = "Memo (optional, encrypted)";
        strings_["miner_fee"] = "Miner Fee";
        strings_["fee"] = "Fee";
        strings_["send_transaction"] = "Send Transaction";
        strings_["clear"] = "Clear";
        strings_["select_address"] = "Select address...";
        strings_["paste"] = "Paste";
        strings_["max"] = "Max";
        strings_["available"] = "Available";
        strings_["invalid_address"] = "Invalid address format";
        strings_["memo_z_only"] = "Note: Memos are only available when sending to shielded (z) addresses";
        strings_["characters"] = "characters";
        strings_["from"] = "From";
        strings_["to"] = "To";
        strings_["sending"] = "Sending transaction";
        strings_["confirm_send"] = "Confirm Send";
        strings_["confirm_transaction"] = "Confirm Transaction";
        strings_["confirm_and_send"] = "Confirm & Send";
        strings_["cancel"] = "Cancel";
        
        // Receive Tab
        strings_["receiving_addresses"] = "Your Receiving Addresses";
        strings_["new_z_shielded"] = "New z-Address (Shielded)";
        strings_["new_t_transparent"] = "New t-Address (Transparent)";
        strings_["address_details"] = "Address Details";
        strings_["view_on_explorer"] = "View on Explorer";
        strings_["qr_code"] = "QR Code";
        strings_["request_payment"] = "Request Payment";
        
        // Transactions Tab
        strings_["date"] = "Date";
        strings_["status"] = "Status";
        strings_["confirmations"] = "Confirmations";
        strings_["confirmed"] = "Confirmed";
        strings_["pending"] = "Pending";
        strings_["sent"] = "sent";
        strings_["received"] = "received";
        strings_["mined"] = "mined";
        
        // Mining Tab
        strings_["mining_control"] = "Mining Control";
        strings_["start_mining"] = "Start Mining";
        strings_["stop_mining"] = "Stop Mining";
        strings_["mining_threads"] = "Mining Threads";
        strings_["mining_statistics"] = "Mining Statistics";
        strings_["local_hashrate"] = "Local Hashrate";
        strings_["network_hashrate"] = "Network Hashrate";
        strings_["difficulty"] = "Difficulty";
        strings_["est_time_to_block"] = "Est. Time to Block";
        strings_["mining_off"] = "Mining is OFF";
        strings_["mining_on"] = "Mining is ON";
        
        // Peers Tab
        strings_["connected_peers"] = "Connected Peers";
        strings_["banned_peers"] = "Banned Peers";
        strings_["ip_address"] = "IP Address";
        strings_["version"] = "Version";
        strings_["height"] = "Height";
        strings_["ping"] = "Ping";
        strings_["ban"] = "Ban";
        strings_["unban"] = "Unban";
        strings_["clear_all_bans"] = "Clear All Bans";
        
        // Market Tab
        strings_["price_chart"] = "Price Chart";
        strings_["current_price"] = "Current Price";
        strings_["24h_change"] = "24h Change";
        strings_["24h_volume"] = "24h Volume";
        strings_["market_cap"] = "Market Cap";
        
        // Settings
        strings_["general"] = "General";
        strings_["display"] = "Display";
        strings_["network"] = "Network";
        strings_["theme"] = "Theme";
        strings_["language"] = "Language";
        strings_["dragonx_green"] = "DragonX (Green)";
        strings_["dark"] = "Dark";
        strings_["light"] = "Light";
        strings_["allow_custom_fees"] = "Allow custom fees";
        strings_["use_embedded_daemon"] = "Use embedded dragonxd";
        strings_["save"] = "Save";
        strings_["close"] = "Close";
        
        // Menu
        strings_["file"] = "File";
        strings_["edit"] = "Edit";
        strings_["view"] = "View";
        strings_["help"] = "Help";
        strings_["import_private_key"] = "Import Private Key...";
        strings_["backup_wallet"] = "Backup Wallet...";
        strings_["exit"] = "Exit";
        strings_["about_dragonx"] = "About ObsidianDragon";
        strings_["refresh_now"] = "Refresh Now";
        
        // Dialogs
        strings_["about"] = "About";
        strings_["import"] = "Import";
        strings_["export"] = "Export";
        strings_["copy_to_clipboard"] = "Copy to Clipboard";
        
        // Status
        strings_["connected"] = "Connected";
        strings_["disconnected"] = "Disconnected";
        strings_["connecting"] = "Connecting...";
        strings_["syncing"] = "Syncing...";
        strings_["block"] = "Block";
        strings_["no_addresses_available"] = "No addresses available";
        
        // Errors & Messages
        strings_["error"] = "Error";
        strings_["success"] = "Success";
        strings_["warning"] = "Warning";
        strings_["amount_exceeds_balance"] = "Amount exceeds balance";
        strings_["transaction_sent"] = "Transaction sent successfully";

        // --- Common / Shared ---
        strings_["add"] = "Add";
        strings_["address_copied"] = "Address copied to clipboard";
        strings_["address_label"] = "Address:";
        strings_["amount_label"] = "Amount:";
        strings_["date_label"] = "Date:";
        strings_["delete"] = "Delete";
        strings_["fee_label"] = "Fee:";
        strings_["file_save_location"] = "File will be saved in: ~/.config/ObsidianDragon/";
        strings_["hide"] = "Hide";
        strings_["label"] = "Label:";
        strings_["loading"] = "Loading...";
        strings_["memo_label"] = "Memo:";
        strings_["notes"] = "Notes";
        strings_["notes_optional"] = "Notes (optional):";
        strings_["output_filename"] = "Output filename:";
        strings_["paste_from_clipboard"] = "Paste from Clipboard";
        strings_["show"] = "Show";
        strings_["time_days_ago"] = "%d days ago";
        strings_["time_hours_ago"] = "%d hours ago";
        strings_["time_minutes_ago"] = "%d minutes ago";
        strings_["time_seconds_ago"] = "%d seconds ago";
        strings_["unknown"] = "Unknown";
        strings_["validating"] = "Validating...";
        strings_["warning_upper"] = "WARNING!";

        // --- About Dialog ---
        strings_["about_block_explorer"] = "Block Explorer";
        strings_["about_block_height"] = "Block Height:";
        strings_["about_build_date"] = "Build Date:";
        strings_["about_build_type"] = "Build Type:";
        strings_["about_chain"] = "Chain:";
        strings_["about_connections"] = "Connections:";
        strings_["about_credits"] = "Credits";
        strings_["about_daemon"] = "Daemon:";
        strings_["about_debug"] = "Debug";
        strings_["about_edition"] = "ImGui Edition";
        strings_["about_github"] = "GitHub";
        strings_["about_imgui"] = "ImGui:";
        strings_["about_license"] = "License";
        strings_["about_license_text"] = "This software is released under the GNU General Public License v3 (GPLv3). You are free to use, modify, and distribute this software under the terms of the license.";
        strings_["about_peers_count"] = "%zu peers";
        strings_["about_release"] = "Release";
        strings_["about_title"] = "About ObsidianDragon";
        strings_["about_version"] = "Version:";
        strings_["about_website"] = "Website";

        // --- Address Book Dialog ---
        strings_["address_book_add"] = "Add Address";
        strings_["address_book_add_new"] = "Add New";
        strings_["address_book_added"] = "Address added to book";
        strings_["address_book_count"] = "%zu addresses saved";
        strings_["address_book_deleted"] = "Entry deleted";
        strings_["address_book_edit"] = "Edit Address";
        strings_["address_book_empty"] = "No saved addresses. Click 'Add New' to add one.";
        strings_["address_book_exists"] = "Address already exists in book";
        strings_["address_book_title"] = "Address Book";
        strings_["address_book_update_failed"] = "Failed to update - address may be duplicate";
        strings_["address_book_updated"] = "Address updated";

        // --- Backup Dialog ---
        strings_["backup_backing_up"] = "Backing up...";
        strings_["backup_create"] = "Create Backup";
        strings_["backup_created"] = "Wallet backup created";
        strings_["backup_description"] = "Create a backup of your wallet.dat file. This file contains all your private keys and transaction history. Store the backup in a secure location.";
        strings_["backup_destination"] = "Backup destination:";
        strings_["backup_tip_external"] = "Store backups on external drives or cloud storage";
        strings_["backup_tip_multiple"] = "Create multiple backups in different locations";
        strings_["backup_tip_test"] = "Test restoring from backup periodically";
        strings_["backup_tips"] = "Tips:";
        strings_["backup_title"] = "Backup Wallet";
        strings_["backup_wallet_not_found"] = "Warning: wallet.dat not found at expected location";

        // --- Block Info Dialog ---
        strings_["block_bits"] = "Bits:";
        strings_["block_click_next"] = "Click to view next block";
        strings_["block_click_prev"] = "Click to view previous block";
        strings_["block_get_info"] = "Get Block Info";
        strings_["block_hash"] = "Block Hash:";
        strings_["block_height"] = "Block Height:";
        strings_["block_info_title"] = "Block Information";
        strings_["block_merkle_root"] = "Merkle Root:";
        strings_["block_nav_next"] = "Next >>";
        strings_["block_nav_prev"] = "<< Previous";
        strings_["block_next"] = "Next Block:";
        strings_["block_previous"] = "Previous Block:";
        strings_["block_size"] = "Size:";
        strings_["block_timestamp"] = "Timestamp:";
        strings_["block_transactions"] = "Transactions:";

        // --- Console Tab ---
        strings_["console_auto_scroll"] = "Auto-scroll";
        strings_["console_available_commands"] = "Available commands:";
        strings_["console_capturing_output"] = "Capturing daemon output...";
        strings_["console_clear"] = "Clear";
        strings_["console_clear_console"] = "Clear Console";
        strings_["console_cleared"] = "Console cleared";
        strings_["console_click_commands"] = "Click commands above to insert them";
        strings_["console_click_insert"] = "Click to insert";
        strings_["console_click_insert_params"] = "Click to insert with parameters";
        strings_["console_close"] = "Close";
        strings_["console_commands"] = "Commands";
        strings_["console_common_rpc"] = "Common RPC commands:";
        strings_["console_completions"] = "Completions:";
        strings_["console_connected"] = "Connected to daemon";
        strings_["console_copy_all"] = "Copy All";
        strings_["console_copy_selected"] = "Copy";
        strings_["console_daemon"] = "Daemon";
        strings_["console_daemon_error"] = "Daemon error!";
        strings_["console_daemon_started"] = "Daemon started";
        strings_["console_daemon_stopped"] = "Daemon stopped";
        strings_["daemon_version"] = "Daemon";
        strings_["console_disconnected"] = "Disconnected from daemon";
        strings_["console_errors"] = "Errors";
        strings_["console_filter_hint"] = "Filter output...";
        strings_["console_help_clear"] = "  clear         - Clear the console";
        strings_["console_help_getbalance"] = "  getbalance    - Show transparent balance";
        strings_["console_help_getblockcount"] = "  getblockcount - Show current block height";
        strings_["console_help_getinfo"] = "  getinfo       - Show node information";
        strings_["console_help_getmininginfo"] = "  getmininginfo - Show mining status";
        strings_["console_help_getpeerinfo"] = "  getpeerinfo   - Show connected peers";
        strings_["console_help_gettotalbalance"] = "  gettotalbalance - Show total balance";
        strings_["console_help_help"] = "  help          - Show this help message";
        strings_["console_help_setgenerate"] = "  setgenerate   - Control mining";
        strings_["console_help_stop"] = "  stop          - Stop the daemon";
        strings_["console_line_count"] = "%zu lines";
        strings_["console_new_lines"] = "%d new lines";
        strings_["console_no_daemon"] = "No daemon";
        strings_["console_not_connected"] = "Error: Not connected to daemon";
        strings_["console_rpc_reference"] = "RPC Command Reference";
        strings_["console_search_commands"] = "Search commands...";
        strings_["console_select_all"] = "Select All";
        strings_["console_show_daemon_output"] = "Show daemon output";
        strings_["console_show_errors_only"] = "Show errors only";
        strings_["console_show_rpc_ref"] = "Show RPC command reference";
        strings_["console_showing_lines"] = "Showing %zu of %zu lines";
        strings_["console_starting_node"] = "Starting node...";
        strings_["console_status_error"] = "Error";
        strings_["console_status_running"] = "Running";
        strings_["console_status_starting"] = "Starting";
        strings_["console_status_stopped"] = "Stopped";
        strings_["console_status_stopping"] = "Stopping";
        strings_["console_status_unknown"] = "Unknown";
        strings_["console_tab_completion"] = "Tab for completion";
        strings_["console_type_help"] = "Type 'help' for available commands";
        strings_["console_welcome"] = "Welcome to ObsidianDragon Console";
        strings_["console_zoom_in"] = "Zoom in";
        strings_["console_zoom_out"] = "Zoom out";

        // --- Export All Keys Dialog ---
        strings_["export_keys_btn"] = "Export Keys";
        strings_["export_keys_danger"] = "DANGER: This will export ALL private keys from your wallet! Anyone with access to this file can steal your funds. Store it securely and delete after use.";
        strings_["export_keys_include_t"] = "Include T-addresses (transparent)";
        strings_["export_keys_include_z"] = "Include Z-addresses (shielded)";
        strings_["export_keys_options"] = "Export options:";
        strings_["export_keys_success"] = "Keys exported successfully";
        strings_["export_keys_title"] = "Export All Private Keys";

        // --- Export Transactions Dialog ---
        strings_["export_tx_count"] = "Export %zu transactions to CSV file.";
        strings_["export_tx_file_fail"] = "Failed to create CSV file";
        strings_["export_tx_none"] = "No transactions to export";
        strings_["export_tx_success"] = "Transactions exported successfully";
        strings_["export_tx_title"] = "Export Transactions to CSV";

        // --- Import Key Dialog ---
        strings_["import_key_btn"] = "Import Key(s)";
        strings_["import_key_formats"] = "Supported key formats:";
        strings_["import_key_full_rescan"] = "(0 = full rescan)";
        strings_["import_key_label"] = "Private Key(s):";
        strings_["import_key_no_valid"] = "No valid keys found in input";
        strings_["import_key_rescan"] = "Rescan blockchain after import";
        strings_["import_key_start_height"] = "Start height:";
        strings_["import_key_success"] = "Keys imported successfully";
        strings_["import_key_t_format"] = "T-address WIF private keys";
        strings_["import_key_title"] = "Import Private Key";
        strings_["import_key_tooltip"] = "Enter one or more private keys, one per line.\nSupports both z-address and t-address keys.\nLines starting with # are treated as comments.";
        strings_["import_key_warning"] = "Warning: Never share your private keys! Importing keys from untrusted sources can compromise your wallet.";
        strings_["import_key_z_format"] = "Z-address spending keys (secret-extended-key-...)";

        // --- Key Export Dialog ---
        strings_["key_export_fetching"] = "Fetching key from wallet...";
        strings_["key_export_private_key"] = "Private Key:";
        strings_["key_export_private_warning"] = "Keep this key SECRET! Anyone with this key can spend your funds. Never share it online or with untrusted parties.";
        strings_["key_export_reveal"] = "Reveal Key";
        strings_["key_export_viewing_key"] = "Viewing Key:";
        strings_["key_export_viewing_warning"] = "This viewing key allows others to see your incoming transactions and balance, but NOT spend your funds. Share only with trusted parties.";

        // --- Market Tab ---
        strings_["market_12h"] = "12h";
        strings_["market_18h"] = "18h";
        strings_["market_24h"] = "24h";
        strings_["market_24h_volume"] = "24H VOLUME";
        strings_["market_6h"] = "6h";
        strings_["market_attribution"] = "Price data from NonKYC";
        strings_["market_btc_price"] = "BTC PRICE";
        strings_["market_no_history"] = "No price history available";
        strings_["market_no_price"] = "No price data";
        strings_["market_now"] = "Now";
        strings_["market_pct_shielded"] = "%.0f%% Shielded";
        strings_["market_portfolio"] = "PORTFOLIO";
        strings_["market_price_unavailable"] = "Price data unavailable";
        strings_["market_refresh_price"] = "Refresh price data";
        strings_["market_trade_on"] = "Trade on %s";

        // --- Mining Tab ---
        strings_["mining_active"] = "Active";
        strings_["mining_address_copied"] = "Mining address copied";
        strings_["mining_all_time"] = "All Time";
        strings_["mining_already_saved"] = "Pool URL already saved";
        strings_["mining_block_copied"] = "Block hash copied";
        strings_["mining_chart_1m_ago"] = "1m ago";
        strings_["mining_chart_5m_ago"] = "5m ago";
        strings_["mining_chart_now"] = "Now";
        strings_["mining_chart_start"] = "Start";
        strings_["mining_click"] = "Click";
        strings_["mining_click_copy_address"] = "Click to copy address";
        strings_["mining_click_copy_block"] = "Click to copy block hash";
        strings_["mining_click_copy_difficulty"] = "Click to copy difficulty";
        strings_["mining_connected"] = "Connected";
        strings_["mining_connecting"] = "Connecting...";
        strings_["mining_difficulty_copied"] = "Difficulty copied";
        strings_["mining_est_block"] = "Est. Block";
        strings_["mining_est_daily"] = "Est. Daily";
        strings_["mining_filter_all"] = "All";
        strings_["mining_filter_tip_all"] = "Show all earnings";
        strings_["mining_filter_tip_pool"] = "Show pool earnings only";
        strings_["mining_filter_tip_solo"] = "Show solo earnings only";
        strings_["mining_idle_off_tooltip"] = "Enable idle mining";
        strings_["mining_idle_on_tooltip"] = "Disable idle mining";
        strings_["mining_idle_scale_on_tooltip"] = "Thread scaling: ON\nClick to switch to start/stop mode";
        strings_["mining_idle_scale_off_tooltip"] = "Start/stop mode: ON\nClick to switch to thread scaling mode";
        strings_["mining_idle_gpu_on_tooltip"] = "GPU-aware: ON\nGPU activity (video, games) prevents idle mining\nClick for unrestricted mode";
        strings_["mining_idle_gpu_off_tooltip"] = "Unrestricted: ON\nOnly keyboard/mouse input determines idle state\nClick to enable GPU-aware detection";
        strings_["mining_idle_threads_active_tooltip"] = "Threads when user is active";
        strings_["mining_idle_threads_idle_tooltip"] = "Threads when system is idle";
        strings_["mining_local_hashrate"] = "Local Hashrate";
        strings_["mining_mine"] = "Mine";
        strings_["mining_mining_addr"] = "Mining Addr";
        strings_["mining_network"] = "Network";
        strings_["mining_no_blocks_yet"] = "No blocks found yet";
        strings_["mining_no_payouts_yet"] = "No pool payouts yet";
        strings_["mining_no_saved_addresses"] = "No saved addresses";
        strings_["mining_no_saved_pools"] = "No saved pools";
        strings_["mining_open_in_explorer"] = "Open in explorer";
        strings_["mining_payout_address"] = "Payout Address";
        strings_["mining_payout_tooltip"] = "Address to receive mining rewards";
        strings_["mining_generate_z_address_hint"] = "Generate a Z address in the Receive tab to use as your payout address";
        strings_["mining_pool"] = "Pool";
        strings_["mining_pool_hashrate"] = "Pool Hashrate";
        strings_["mining_pool_url"] = "Pool URL";
        strings_["mining_recent_blocks"] = "RECENT BLOCKS";
        strings_["mining_recent_payouts"] = "RECENT POOL PAYOUTS";
        strings_["mining_remove"] = "Remove";
        strings_["mining_reset_defaults"] = "Reset Defaults";
        strings_["mining_benchmark_tooltip"] = "Find optimal thread count for this CPU";
        strings_["mining_benchmark_testing"] = "Testing";
        strings_["mining_benchmark_cooling"] = "Cooling";
        strings_["mining_benchmark_stabilizing"] = "Stabilizing";
        strings_["mining_benchmark_cancel"] = "Cancel benchmark";
        strings_["mining_benchmark_result"] = "Optimal";
        strings_["mining_benchmark_dismiss"] = "Dismiss";
        strings_["mining_save_payout_address"] = "Save payout address";
        strings_["mining_save_pool_url"] = "Save pool URL";
        strings_["mining_saved_addresses"] = "Saved Addresses:";
        strings_["mining_saved_pools"] = "Saved Pools:";
        strings_["mining_shares"] = "Shares";
        strings_["mining_show_chart"] = "Chart";
        strings_["mining_show_log"] = "Log";
        strings_["mining_solo"] = "Solo";
        strings_["mining_starting"] = "Starting...";
        strings_["mining_starting_tooltip"] = "Miner is starting...";
        strings_["mining_stop"] = "Stop";
        strings_["mining_stop_solo_for_pool"] = "Stop solo mining before starting pool mining";
        strings_["mining_stop_solo_for_pool_settings"] = "Stop solo mining to change pool settings";
        strings_["mining_stopping"] = "Stopping...";
        strings_["mining_stopping_tooltip"] = "Miner is stopping...";
        strings_["mining_syncing_tooltip"] = "Blockchain is syncing...";
        strings_["mining_to_save"] = "to save";
        strings_["mining_today"] = "Today";
        strings_["mining_uptime"] = "Uptime";
        strings_["mining_yesterday"] = "Yesterday";

        // --- Peers Tab ---
        strings_["peers_avg_ping"] = "Avg Ping";
        strings_["peers_ban_24h"] = "Ban Peer 24h";
        strings_["peers_ban_score"] = "Ban Score: %d";
        strings_["peers_banned"] = "Banned";
        strings_["peers_banned_count"] = "Banned: %d";
        strings_["peers_best_block"] = "Best Block";
        strings_["peers_blockchain"] = "BLOCKCHAIN";
        strings_["peers_blocks"] = "Blocks";
        strings_["peers_blocks_left"] = "%d blocks left";
        strings_["peers_clear_all_bans"] = "Clear All Bans";
        strings_["peers_click_copy"] = "Click to copy";
        strings_["peers_connected"] = "Connected";
        strings_["peers_connected_count"] = "Connected: %d";
        strings_["peers_copy_ip"] = "Copy IP";
        strings_["peers_dir_in"] = "In";
        strings_["peers_dir_out"] = "Out";
        strings_["peers_hash_copied"] = "Hash copied";
        strings_["peers_hashrate"] = "Hashrate";
        strings_["peers_in_out"] = "In/Out";
        strings_["peers_longest"] = "Longest";
        strings_["peers_longest_chain"] = "Longest Chain";
        strings_["peers_memory"] = "Memory";
        strings_["peers_no_banned"] = "No banned peers";
        strings_["peers_no_connected"] = "No connected peers";
        strings_["peers_no_tls"] = "No TLS";
        strings_["peers_notarized"] = "Notarized";
        strings_["peers_p2p_port"] = "P2P Port";
        strings_["peers_protocol"] = "Protocol";
        strings_["peers_received"] = "Received";
        strings_["peers_refresh"] = "Refresh";
        strings_["peers_refresh_tooltip"] = "Refresh peer list";
        strings_["peers_refreshing"] = "Refreshing...";
        strings_["peers_sent"] = "Sent";
        strings_["peers_tt_id"] = "ID: %d";
        strings_["peers_tt_received"] = "Received: %s";
        strings_["peers_tt_sent"] = "Sent: %s";
        strings_["peers_tt_services"] = "Services: %s";
        strings_["peers_tt_start_height"] = "Start Height: %d";
        strings_["peers_tt_synced"] = "Synced H/B: %d/%d";
        strings_["peers_tt_tls_cipher"] = "TLS: %s";
        strings_["peers_unban"] = "Unban";
        strings_["peers_upper"] = "PEERS";
        strings_["peers_version"] = "Version";

        // --- QR Popup Dialog ---
        strings_["qr_failed"] = "Failed to generate QR code";
        strings_["qr_title"] = "QR Code";

        // --- Receive Tab ---
        strings_["click_copy_address"] = "Click to copy address";
        strings_["click_copy_uri"] = "Click to copy URI";
        strings_["generating"] = "Generating";
        strings_["failed_create_shielded"] = "Failed to create shielded address";
        strings_["failed_create_transparent"] = "Failed to create transparent address";
        strings_["new_shielded_created"] = "New shielded address created";
        strings_["new_transparent_created"] = "New transparent address created";
        strings_["payment_request_copied"] = "Payment request copied";
        strings_["payment_uri_copied"] = "Payment URI copied";

        // --- Request Payment Dialog ---
        strings_["request_amount"] = "Amount (optional):";
        strings_["request_copy_uri"] = "Copy URI";
        strings_["request_description"] = "Generate a payment request that others can scan or copy. The QR code contains your address and optional amount/memo.";
        strings_["request_label"] = "Label (optional):";
        strings_["request_memo"] = "Memo (optional):";
        strings_["request_payment_uri"] = "Payment URI:";
        strings_["request_receive_address"] = "Receive Address:";
        strings_["request_select_address"] = "Select address...";
        strings_["request_shielded_addrs"] = "-- Shielded Addresses --";
        strings_["request_title"] = "Request Payment";
        strings_["request_transparent_addrs"] = "-- Transparent Addresses --";
        strings_["request_uri_copied"] = "Payment URI copied to clipboard";

        // --- Send Tab ---
        strings_["send_amount"] = "Amount";
        strings_["send_amount_details"] = "AMOUNT DETAILS";
        strings_["send_amount_upper"] = "AMOUNT";
        strings_["send_clear_fields"] = "Clear all form fields?";
        strings_["send_copy_error"] = "Copy Error";
        strings_["send_dismiss"] = "Dismiss";
        strings_["send_error_copied"] = "Error copied to clipboard";
        strings_["send_error_prefix"] = "Error: %s";
        strings_["send_exceeds_available"] = "Exceeds available (%.8f)";
        strings_["send_fee"] = "Fee";
        strings_["send_fee_high"] = "High";
        strings_["send_fee_low"] = "Low";
        strings_["send_fee_normal"] = "Normal";
        strings_["send_form_restored"] = "Form restored";
        strings_["send_go_to_receive"] = "Go to Receive";
        strings_["send_keep"] = "Keep";
        strings_["send_network_fee"] = "NETWORK FEE";
        strings_["send_no_balance"] = "No balance";
        strings_["send_no_recent"] = "No recent sends";
        strings_["send_recent_sends"] = "RECENT SENDS";
        strings_["send_recipient"] = "RECIPIENT";
        strings_["send_select_source"] = "Select a source address...";
        strings_["send_sending_from"] = "SENDING FROM";
        strings_["send_submitting"] = "Submitting transaction...";
        strings_["send_switch_to_receive"] = "Switch to Receive to get your address and start receiving funds.";
        strings_["send_tooltip_enter_amount"] = "Enter an amount to send";
        strings_["send_tooltip_exceeds_balance"] = "Amount exceeds available balance";
        strings_["send_tooltip_in_progress"] = "Transaction already in progress";
        strings_["send_tooltip_invalid_address"] = "Enter a valid recipient address";
        strings_["send_tooltip_not_connected"] = "Not connected to daemon";
        strings_["send_tooltip_select_source"] = "Select a source address first";
        strings_["send_tooltip_syncing"] = "Wait for blockchain to sync";
        strings_["send_total"] = "Total";
        strings_["send_tx_failed"] = "Transaction failed";
        strings_["send_tx_sent"] = "Transaction sent!";
        strings_["send_tx_success"] = "Transaction sent successfully!";
        strings_["send_txid_copied"] = "TxID copied to clipboard";
        strings_["send_txid_label"] = "TxID: %s";
        strings_["send_valid_shielded"] = "Valid shielded address";
        strings_["send_valid_transparent"] = "Valid transparent address";
        strings_["send_wallet_empty"] = "Your wallet is empty";
        strings_["send_yes_clear"] = "Yes, Clear";

        // --- Shield Dialog ---
        strings_["shield_check_status"] = "Check Status";
        strings_["shield_completed"] = "Operation completed successfully!";
        strings_["shield_description"] = "Shield your mining rewards by sending coinbase outputs from transparent addresses to a shielded address. This improves privacy by hiding your mining income.";
        strings_["shield_from_address"] = "From Address:";
        strings_["shield_funds"] = "Shield Funds";
        strings_["shield_in_progress"] = "Operation in progress...";
        strings_["shield_max_utxos"] = "Max UTXOs per operation";
        strings_["shield_merge_done"] = "Shield/merge completed!";
        strings_["shield_select_z"] = "Select z-address...";
        strings_["shield_started"] = "Shield operation started";
        strings_["shield_title"] = "Shield Coinbase Rewards";
        strings_["shield_to_address"] = "To Address (Shielded):";
        strings_["shield_utxo_limit"] = "UTXO Limit:";
        strings_["shield_wildcard_hint"] = "Use '*' to shield from all transparent addresses";
        strings_["merge_description"] = "Merge multiple UTXOs into a single shielded address. This can help reduce wallet size and improve privacy.";
        strings_["merge_funds"] = "Merge Funds";
        strings_["merge_started"] = "Merge operation started";
        strings_["merge_title"] = "Merge to Address";

        // --- Transaction Details Dialog ---
        strings_["tx_confirmations"] = "%d confirmations";
        strings_["tx_details_title"] = "Transaction Details";
        strings_["tx_from_address"] = "From Address:";
        strings_["tx_id_label"] = "Transaction ID:";
        strings_["tx_immature"] = "IMMATURE";
        strings_["tx_mined"] = "MINED";
        strings_["tx_received"] = "RECEIVED";
        strings_["tx_sent"] = "SENT";
        strings_["tx_to_address"] = "To Address:";
        strings_["tx_view_explorer"] = "View on Explorer";

        // --- Validate Address Dialog ---
        strings_["validate_btn"] = "Validate";
        strings_["validate_description"] = "Enter a DragonX address to check if it's valid and whether it belongs to this wallet.";
        strings_["validate_invalid"] = "INVALID";
        strings_["validate_is_mine"] = "This wallet owns this address";
        strings_["validate_not_mine"] = "Not owned by this wallet";
        strings_["validate_ownership"] = "Ownership:";
        strings_["validate_results"] = "Results:";
        strings_["validate_shielded_type"] = "Shielded (z-address)";
        strings_["validate_status"] = "Status:";
        strings_["validate_title"] = "Validate Address";
        strings_["validate_transparent_type"] = "Transparent (t-address)";
        strings_["validate_type"] = "Type:";
        strings_["validate_valid"] = "VALID";

        // Misc dialog/tab strings
        strings_["ram_wallet_gb"] = "Wallet:  %.1f GB";
        strings_["ram_wallet_mb"] = "Wallet:  %.0f MB";
        strings_["ram_daemon_gb"] = "Daemon:  %.1f GB  (%s)";
        strings_["ram_daemon_mb"] = "Daemon:  %.0f MB  (%s)";
        strings_["ram_system_gb"] = "System:  %.1f / %.0f GB";
        strings_["shield_operation_id"] = "Operation ID: %s";
        strings_["peers_peer_label"] = "Peer: %s";
        strings_["error_format"] = "Error: %s";
        strings_["key_export_click_retrieve"] = "Click to retrieve the key from your wallet";
        strings_["key_export_viewing_keys_zonly"] = "Viewing keys are only available for shielded (z) addresses";
        strings_["backup_source"] = "Source: %s";
        strings_["export_keys_progress"] = "Exporting %d/%d...";
        strings_["import_key_progress"] = "Importing %d/%d...";
        strings_["click_to_copy"] = "Click to copy";
        strings_["block_hash_copied"] = "Block hash copied";

        // Explorer tab
        strings_["explorer"] = "Explorer";
        strings_["explorer_search"] = "Search";
        strings_["explorer_chain_stats"] = "Chain";
        strings_["explorer_mempool"] = "Mempool";
        strings_["explorer_mempool_txs"] = "Transactions";
        strings_["explorer_mempool_size"] = "Size";
        strings_["explorer_recent_blocks"] = "Recent Blocks";
        strings_["explorer_block_detail"] = "Block";
        strings_["explorer_block_height"] = "Height";
        strings_["explorer_block_hash"] = "Hash";
        strings_["explorer_block_txs"] = "Transactions";
        strings_["explorer_block_size"] = "Size";
        strings_["explorer_block_time"] = "Time";
        strings_["explorer_block_merkle"] = "Merkle Root";
        strings_["explorer_tx_outputs"] = "Outputs";
        strings_["explorer_tx_size"] = "Size";
        strings_["explorer_invalid_query"] = "Enter a block height or 64-character hash";
}

const char* I18n::translate(const char* key) const
{
    if (!key) return "";
    
    auto it = strings_.find(key);
    if (it != strings_.end()) {
        return it->second.c_str();
    }
    
    // Return key if translation not found
    return key;
}

void I18n::registerLanguage(const std::string& code, const std::string& name)
{
    // Check if already registered
    for (const auto& lang : available_languages_) {
        if (lang.first == code) return;
    }
    
    available_languages_.emplace_back(code, name);
}

} // namespace util
} // namespace dragonx