import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';

import { Store } from '@ngrx/store';

import { UserModel } from '../../auth/models/user.model';
import { User } from '../../accounts/models/user.model';
import { Roles } from '../../shared/global';
import { Observable } from 'rxjs';

@Injectable({ providedIn: 'root' })
export class UserService {

  private readonly userURL = '/users';

  constructor(private http: HttpClient) {
  }

  loadUsers(options: LoadUserOptions): Observable<User[]> {
    return this.http.post<User[]>(this.userURL + '/search', options);
  }

  getUser(id: string, ops?: { withAddresses?: boolean; view?: 'profile' | 'edit' | 'billing' }): Observable<User> {
    let url = `${this.userURL}/${id}`;
    const params: string[] = [];
    if (ops?.withAddresses !== undefined) {
      params.push(`withAddresses=${ops.withAddresses}`);
    }
    if (ops?.view) {
      params.push(`view=${ops.view}`);
    }
    if (params.length) {
      url += `?${params.join('&')}`;
    }
    return this.http.get<User>(url);
  }

  userNameExists(userName: string): Observable<boolean> {
    const reqData = { username: userName };
    return this.http.post<boolean>(`${this.userURL}/exists`, reqData);
  }

  saveUser(user: User): Observable<User> {
    return user._id !== '0' ? this.updateUser(user) : this.createUser(user);
  }

  private createUser(user: User): Observable<User> {
    return this.http.post<User>(this.userURL, user);
  }

  private updateUser(user: User): Observable<User> {
    return this.http.put<User>(`${this.userURL}/${user._id}`, user);
  }

  updateLang(lang): Observable<User> {
    return this.http.post<User>(`${this.userURL}/updateLang`, { lang: lang });
  }

  deleteUser(user: User) {
    return this.http.delete<User>(`${this.userURL}/${user._id}`);
  }

  getUserDetail(username: string) {
    return this.http.post<User>(`${this.userURL}/getUserDetail`, { username: username });
  }

  signup(form: any) {
    return this.http.post<any>(`${this.userURL}/signup`, form);
  }

  requestVerifyEmail(email: string) {
    return this.http.post<any>(`${this.userURL}/signup/requestVerifyEmail`, { email });
  }

  signupValidate(token: string) {
    return this.http.post<any>(`${this.userURL}/signup/validate`, { token });
  }

  getAccountType(user: UserModel | User): string {
    if (!user) return '';
    if ('roles' in user && Array.isArray(user.roles) && user.roles.length > 0) {
      const roleId = user.roles[0];
      return Roles[roleId] || '';
    }
    if ('kind' in user && user.kind && Roles[user.kind]) {
      return Roles[user.kind];
    }
    return '';
  }
}

export interface LoadUserOptions {
  byPuid: string;
  accountType?: number;
}