import { ExtractJwt, Strategy } from 'passport-jwt';
import { Injectable, UnauthorizedException } from '@nestjs/common';
import { PassportStrategy } from '@nestjs/passport';
import { ConfigService } from '@nestjs/config';

export interface JwtPayload {
  sub: string;
  username: string;
  role: 'admin' | 'player';
}

@Injectable()
export class JwtStrategy extends PassportStrategy(Strategy) {
  constructor(config: ConfigService) {
    super({
      jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
      ignoreExpiration: false,
      secretOrKey: config.get<string>('JWT_ACCESS_SECRET'),
    });
  }

  async validate(payload: JwtPayload): Promise<JwtPayload> {
    if (!payload?.sub) throw new UnauthorizedException();
    return payload;
  }
}