import axios from 'axios';

export class BackendService {
  private url: string;
  private token?: string;

  constructor(url: string, token?: string) {
    this.url = url;
    this.token = token;
  }

  private get headers() {
    return {
      Authorization: `Bearer ${this.token}`,
      'Content-Type': 'application/json'
    };
  }

  public async getSharedAccounts() {
    if (!this.token) return [];
    try {
      const response = await axios.get(`${this.url}/api/sync`, { headers: this.headers });
      return response.data;
    } catch (e) {
      console.error('[Backend] Failed to fetch shared accounts');
      return [];
    }
  }

  public async getCommunityAccounts() {
    if (!this.token) return [];
    try {
      const response = await axios.get(`${this.url}/api/sync/community`, { headers: this.headers });
      return response.data;
    } catch (e) {
      console.error('[Backend] Failed to fetch community accounts');
      return [];
    }
  }

  public async getServerUsers() {
    if (!this.token) return [];
    try {
      const response = await axios.get(`${this.url}/api/sync/users`, { headers: this.headers });
      return response.data;
    } catch (e) {
      console.error('[Backend] Failed to fetch server users');
      return [];
    }
  }

  public async shareAccount(account: any) {
    if (!this.token) return;
    try {
      await axios.post(`${this.url}/api/sync`, {
        steamId: account.steamId,
        personaName: account.personaName,
        avatar: account.avatar,
        profileUrl: account.profileUrl,
        vacBanned: account.vacBanned,
        gameBans: account.gameBans,
        loginName: account.loginName,
        steamLoginSecure: account.steamLoginSecure,
        loginConfig: account.loginConfig,
        sessionUpdatedAt: account.sessionUpdatedAt
      }, { headers: this.headers });
    } catch (e) {
      console.error('[Backend] Failed to share account');
    }
  }

  public async pushCooldown(steamId: string, cooldownExpiresAt?: string) {
    if (!this.token) return;
    try {
      await axios.patch(`${this.url}/api/sync/${steamId}/cooldown`, {
        cooldownExpiresAt
      }, { headers: this.headers });
    } catch (e) {
      console.error(`[Backend] Failed to push cooldown for ${steamId}`);
    }
  }

  public async shareWithUser(steamId: string, targetSteamId: string) {
    if (!this.token) return;
    try {
      const response = await axios.post(`${this.url}/api/sync/${steamId}/share`, {
        targetSteamId
      }, { headers: this.headers });
      return response.data;
    } catch (e: any) {
      console.error(`[Backend] Failed to share account ${steamId} with ${targetSteamId}`);
      throw new Error(e.response?.data?.message || 'Failed to share account');
    }
  }

  public async revokeAccess(steamId: string, targetSteamId: string) {
    if (!this.token) return;
    try {
      const response = await axios.delete(`${this.url}/api/sync/${steamId}/share`, {
        headers: this.headers,
        data: { targetSteamId }
      });
      return response.data;
    } catch (e: any) {
      console.error(`[Backend] Failed to revoke access for ${steamId} from ${targetSteamId}`);
      throw new Error(e.response?.data?.message || 'Failed to revoke access');
    }
  }

  public async revokeAllAccess(steamId: string) {
    if (!this.token) return;
    try {
      const response = await axios.delete(`${this.url}/api/sync/${steamId}/share/all`, {
        headers: this.headers
      });
      return response.data;
    } catch (e: any) {
      console.error(`[Backend] Failed to revoke all access for ${steamId}`);
      throw new Error(e.response?.data?.message || 'Failed to revoke all access');
    }
  }
}