import {acceptHMRUpdate, defineStore} from 'pinia'


export interface User {
  name: string,
  sticker_ids: string[],
  username: string | null,
}

const anonymous: User = {
  name: 'Anonymous',
  sticker_ids: [],
  username: 'anonymous',
};

export interface State {
  user: User,
}

export const useSessionStore = defineStore('session', {
  actions: {
    async login(username: string, password: string) {
      const response = await fetch(
        `/api/login`,
        {
          method: 'POST',
          body: JSON.stringify({username, password}),
        },
      );
      const json = await response.json();
      console.log('login', json);
      // this.user.name = json.name;
      this.user = {
        name: json.name,
        sticker_ids: json.sticker_ids,
        username: json.username,
      };
    },
    logout() {
      console.log('logout');
      // TODO: Tell server.
      this.user = anonymous;
      // this.hasChanged = true;
      // this.user.name = 'Anonymous';
      // this.$reset();
      // this.$patch({user: anonymous});
    },
  },
  getters: {
    initials: (state: State): string => {
      return state.user.name[0] || '';
    },
    isAnonymous: (state: State): boolean => {
      return state.user.username === 'anonymous';
    },
  },
  state: (): State =>  {
    return {
      user: anonymous,
    };
  },
})

if (import.meta.hot) {
  import.meta.hot.accept(acceptHMRUpdate(useSessionStore, import.meta.hot))
}