#pragma once
#include "Localization.h"
#include <Eigen/Dense>
#include <map>
#include <optional>
#include <string>
#include <vector>

namespace FRG {

	// One location of a campaign, loaded from resources/config/locations/<name>.json.
	// Optional paths may be left empty; Location::setup skips them.
	struct LocationConfig {
		std::string id;
		std::string gameObjectsJsonPath;
		std::string interactiveObjectsJsonPath;
		std::string npcsJsonPath;
		std::string dialoguesJsonPath;
		std::vector<std::string> navigationJsonPaths;
		std::string scriptPath;
		std::string teleportsJsonPath;
		std::string triggerZonesJsonPath;
		std::string lightsJsonPath;
		Eigen::Vector3f playerPosition = Eigen::Vector3f::Zero();

		// Where the taxi drives in when the player calls it. No taxi when absent.
		struct Taxi {
			Eigen::Vector3f triggerPosition = Eigen::Vector3f::Zero();
			std::vector<Eigen::Vector3f> waypoints;
			Eigen::Vector3f initialPosition = Eigen::Vector3f::Zero();
			float initialRotation = 0.f;
			float waypointReachRadius = 5.f;
		};
		std::optional<Taxi> taxi;

		// Interactive objects stay locked until the tutorial reaches "pick up an item".
		bool lockInteractiveObjectsDuringTutorial = false;

		// Returns false (and logs) when the file can't be read or parsed.
		static bool fromFile(const std::string& path, const std::string& zipFile, LocationConfig& out);
	};

	// A playable campaign: its own set of locations, quests and starting state.
	struct CampaignConfig {
		std::string id;
		std::map<std::string, std::string> titles; // language code -> title
		std::vector<std::string> locationConfigPaths;
		std::string startLocation;
		std::string startMusic;
		std::string startStatePath;
		std::string questsPath;
		bool tutorial = false;
		// UI layout shown while the campaign loads (preloaded with the rest of the UI).
		std::string loadingScreenPath = kDefaultLoadingScreen;

		static constexpr const char* kDefaultLoadingScreen = "resources/w/ui/screen_loading.json";

		std::string title(Language lang) const;
	};

	// Campaigns listed in resources/config/campaigns.json, in display order.
	class CampaignRegistry {
	public:
		static constexpr const char* kDefaultCampaignId = "main";

		static CampaignRegistry& instance();

		void loadFromJson(const std::string& jsonPath, const std::string& zipFile = "");

		const std::vector<CampaignConfig>& all() const { return campaigns_; }
		// Returns nullptr if not found.
		const CampaignConfig* find(const std::string& id) const;

	private:
		CampaignRegistry() = default;

		std::vector<CampaignConfig> campaigns_;
	};

} // namespace FRG