first commit

include/Config.hpp

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+#pragma once
+#include <string>
+#include <vector>
+#include <optional>
+
+// Per-watched-link settings (mirrors the Python `link_configs` dicts).
+struct LinkConfig {
+    std::string url;
+    std::string label;
+    std::optional<double> min_price;
+    std::optional<double> max_price;
+    std::vector<std::string> keywords;
+    bool paused = false;
+};
+
+// Whole-application configuration, loaded from / saved to a JSON file on disk
+// so the bot remembers its watch list and settings between restarts.
+struct AppConfig {
+    std::string discord_bot_token;     // required: bot token for the control bot
+    std::string discord_channel_id;    // channel the bot posts stock alerts to
+    std::string discord_webhook_url;   // optional legacy fallback (like the python script)
+    std::string command_guild_id;      // optional: register slash commands to one guild (instant sync while testing)
+    std::string cookie_header;         // optional "Cookie: ..." value for authenticated scraping
+    std::string user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) LZTSniperCpp/1.0";
+    int interval_seconds = 180;
+    bool autostart = false;            // start monitoring immediately on launch
+    std::vector<LinkConfig> links;
+
+    // Loads config from `path`. Returns a default-constructed AppConfig (with
+    // an empty token) if the file does not exist yet.
+    static AppConfig load(const std::string& path);
+
+    // Persists the current config (including live link list / pause state)
+    // back to `path` as pretty-printed JSON.
+    void save(const std::string& path) const;
+};