import { boot } from 'quasar/wrappers';
import { RouteConfig } from 'vue-router';
import { Module } from 'vuex';

const config = {
  // Do not change required Modules !!
  requiredModules: ['user'],
  // here you can import plugins.
  loadModules: ['plugin1', 'user-plugin']
};

// do not change anything here !!

interface ShortCutLink {
  link: string;
  icon: string;
}

interface Plugin {
  name: string;
  routes: RouteConfig[];
  store?: Module<never, never>[];
  mainLink: PluginMainLink;
  requiredModules: string[];
  shortCuts: ShortCutLink[];
  shortCutsOut: ShortCutLink[];
  version: string;
}

interface PluginMainLink extends PluginChildLink {
  children: PluginChildLink[];
}

interface PluginChildLink {
  name: string;
  title: string;
  link: string;
  icon: string;
}

interface LoadedPlugin {
  name: string;
  version: string;
}

interface LoadedPlugins {
  plugins: LoadedPlugin[];
  routes: RouteConfig[];
  mainLinks: PluginMainLink[];
  shortcuts: ShortCutLink[];
  shortcutsOut: ShortCutLink[];
}

export {
  Plugin,
  PluginChildLink,
  PluginMainLink,
  ShortCutLink,
  LoadedPlugins,
  LoadedPlugin
};

// combine routes from source to target
function combineRoutes(
  target: RouteConfig[],
  source: RouteConfig[]
): RouteConfig[] {
  // iterate first layer e.g. /main, /login etc.
  source.forEach((sourceRouteConfig: RouteConfig) => {
    const targetRouteConfig: RouteConfig | undefined = target.find(
      (routeConfig: RouteConfig) => {
        return sourceRouteConfig.path == routeConfig.path;
      }
    );
    if (targetRouteConfig) {
      // if exists first layer in target exist iterate through 2nd layer e.g. /main/user, /main/about
      sourceRouteConfig.children?.forEach(
        (sourcePluginChildRouteConfig: RouteConfig) => {
          const targetPluginRouteConfig:
            | RouteConfig
            | undefined = targetRouteConfig.children?.find(
            (routeConfig: RouteConfig) => {
              return sourcePluginChildRouteConfig.path == routeConfig.path;
            }
          );
          if (targetPluginRouteConfig) {
            // if 2nd layer in target exist check if target has children path.
            if (targetPluginRouteConfig.children) {
              // if target has children path, add children from source.
              targetPluginRouteConfig.children = Object.assign(
                targetPluginRouteConfig.children,
                sourcePluginChildRouteConfig.children
              );
            } else {
              // if not set children of targen from children of source
              targetPluginRouteConfig.children =
                sourcePluginChildRouteConfig.children;
            }
          } else {
            // if target not exists in 2nd layer, add source to children of first targen
            // eslint-disable-next-line @typescript-eslint/ban-ts-comment
            // @ts-ignore
            targetRouteConfig.children.push(sourcePluginChildRouteConfig);
          }
        }
      );
    } else {
      // if target not exists in first layer, add source
      target.push(sourceRouteConfig);
    }
  });
  return target;
}

// combine Links of Plugins from source to target
function combineMainLinks(
  target: PluginMainLink[],
  source: PluginMainLink
): PluginMainLink[] {
  const targetPluginMainLink: PluginMainLink | undefined = target.find(
    (targetPluginMainLink: PluginMainLink) => {
      console.log(targetPluginMainLink.title, source.title);
      return targetPluginMainLink.title == source.title;
    }
  );
  if (targetPluginMainLink) {
    source.children.forEach((sourcePluginChildLink: PluginChildLink) => {
      targetPluginMainLink.children.push(sourcePluginChildLink);
    });
  } else {
    target.push(source);
  }
  return target;
}

// loade plugins
function loadPlugin(
  loadedPlugins: LoadedPlugins,
  modules: string[],
  plugins: Plugin[],
  store: any
): LoadedPlugins {
  modules.forEach(requiredModule => {
    const plugin = plugins.find(plugin => {
      return plugin.name == requiredModule;
    });
    if (plugin) {
      loadedPlugins.routes = combineRoutes(loadedPlugins.routes, plugin.routes);
      if (plugin.store) {
        plugin.store.forEach(store_module => {
          // eslint-disable-next-line @typescript-eslint/no-unsafe-call,@typescript-eslint/no-unsafe-member-access
          store.registerModule(store_module);
        });
      }
      loadedPlugins.mainLinks = combineMainLinks(
        loadedPlugins.mainLinks,
        plugin.mainLink
      );
      loadedPlugins.shortcuts.concat(plugin.shortCuts);
      loadedPlugins.shortcutsOut.concat(plugin.shortCutsOut);
      loadedPlugins.plugins.push({
        name: plugin.name,
        version: plugin.version
      });
    } else {
      console.exception(`Don't find required Plugin ${requiredModule}`);
    }
  });
  return loadedPlugins;
}

// "async" is optional;
// more info on params: https://quasar.dev/quasar-cli/cli-documentation/boot-files#Anatomy-of-a-boot-file
export default boot(({ Vue, router, store }) => {
  const plugins: Plugin[] = [];
  let loadedPlugins: LoadedPlugins = {
    routes: [],
    plugins: [],
    mainLinks: [],
    shortcuts: [],
    shortcutsOut: []
  };

  // get all plugins
  const pluginsContext = require.context('src/plugins', true, /.+\/plugin.ts$/);
  pluginsContext.keys().forEach((fileName: string) => {
    // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
    plugins.push(pluginsContext(fileName).default);
  });

  // load plugins
  loadedPlugins = loadPlugin(
    loadedPlugins,
    config.requiredModules,
    plugins,
    store
  );
  loadedPlugins = loadPlugin(loadedPlugins, config.loadModules, plugins, store);

  console.log(loadedPlugins.routes);

  // add new routes for plugins
  router.addRoutes(loadedPlugins.routes);

  // save plugins in VM-variable
  // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
  Vue.prototype.$flaschengeistPlugins = loadedPlugins;
  console.log(loadedPlugins);
});