import {LiveAtlasDynmapServerDefinition, LiveAtlasServerDefinition} from "@/index";
import ConfigurationError from "@/errors/ConfigurationError";
import {DynmapUrlConfig} from "@/dynmap";

const validateLiveAtlasConfiguration = (config: any): Map<string, LiveAtlasServerDefinition> => {
	const check = '\nCheck your server configuration in index.html is correct.',
		result = new Map<string, LiveAtlasServerDefinition>();

	if (!Object.keys(config).length) {
		throw new ConfigurationError(`No servers defined. ${check}`);
	}

	for (const server in config) {
		if (!Object.hasOwnProperty.call(config, server)) {
			continue;
		}

		const serverConfig = config[server];

		if (!serverConfig || serverConfig.constructor !== Object || !Object.keys(serverConfig).length) {
			throw new ConfigurationError(`Server '${server}': Configuration missing. ${check}`);
		}

		serverConfig.id = server;
		serverConfig.type = serverConfig.type || 'dynmap';

		switch(serverConfig.type) {
			case 'dynmap':
				if (!serverConfig.dynmap || serverConfig.dynmap.constructor !== Object) {
					throw new ConfigurationError(`Server '${server}': Dynmap configuration object missing. ${check}`);
				}

				if (!serverConfig.dynmap.configuration) {
					throw new ConfigurationError(`Server '${server}': Dynmap configuration URL missing. ${check}`);
				}

				if (!serverConfig.dynmap.update) {
					throw new ConfigurationError(`Server '${server}': Dynmap update URL missing. ${check}`);
				}

				if (!serverConfig.dynmap.markers) {
					throw new ConfigurationError(`Server '${server}': Dynmap markers URL missing. ${check}`);
				}

				if (!serverConfig.dynmap.tiles) {
					throw new ConfigurationError(`Server '${server}': Dynmap tiles URL missing. ${check}`);
				}

				if (!serverConfig.dynmap.sendmessage) {
					throw new ConfigurationError(`Server '${server}': Dynmap sendmessage URL missing. ${check}`);
				}
				break;

			case 'pl3xmap':
			case 'plexmap':
				if (!serverConfig.plexmap || serverConfig.plexmap.constructor !== Object) {
					throw new ConfigurationError(`Server '${server}': Pl3xmap configuration object missing. ${check}`);
				}
		}

		result.set(server, serverConfig);
	}

	return result;
};

const validateDynmapConfiguration = (config: DynmapUrlConfig): Map<string, LiveAtlasDynmapServerDefinition> => {
	const check = '\nCheck your standalone/config.js file exists and is being loaded correctly.';

	if (!config) {
		throw new ConfigurationError(`Dynmap configuration is missing. ${check}`);
	}

	if (!config.configuration) {
		throw new ConfigurationError(`Dynmap configuration URL is missing. ${check}`);
	}

	if (!config.update) {
		throw new ConfigurationError(`Dynmap update URL is missing. ${check}`);
	}

	if (!config.markers) {
		throw new ConfigurationError(`Dynmap markers URL is missing. ${check}`);
	}

	if (!config.tiles) {
		throw new ConfigurationError(`Dynmap tiles URL is missing. ${check}`);
	}

	if (!config.sendmessage) {
		throw new ConfigurationError(`Dynmap sendmessage URL is missing. ${check}`);
	}

	const result = new Map<string, LiveAtlasDynmapServerDefinition>();
	result.set('dynmap', {
		id: 'dynmap',
		label: 'dynmap',
		type: 'dynmap',
		dynmap: config
	});

	return result;
};

export const validateConfiguration = (): Map<string, LiveAtlasServerDefinition> => {
	if (!window.liveAtlasConfig) {
		throw new ConfigurationError(`Configuration object is missing`);
	}

	if (typeof window.liveAtlasConfig.servers !== 'undefined') {
		return validateLiveAtlasConfiguration(window.liveAtlasConfig.servers || {});
	}

	return validateDynmapConfiguration(window.config?.url || null);
};