import { Injectable, UnauthorizedException } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import { JwtService } from '@nestjs/jwt';
import { PassportStrategy } from '@nestjs/passport';
import { ExtractJwt, Strategy } from 'passport-jwt';
import { AccountRepo } from 'src/modules/account/account.repo';

@Injectable()
export class JwtStrategy extends PassportStrategy(Strategy) {
  constructor(
    private readonly accountRepo: AccountRepo
    , private readonly configService: ConfigService
    , private readonly jwtService: JwtService
  ) {
    super({
      jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
      ignoreExpiration: false,
      secretOrKey: configService.get<string>('JWT_SECRET')!
    });
  }

  async validate(payload: any) {
    const account = await this.accountRepo.findById(payload.id);
    if (!account || account.length < 1) throw new UnauthorizedException();
    return account[0];
  }
}