//src/auth/jwt.strategy.ts
import { Injectable, UnauthorizedException } from '@nestjs/common';
import { PassportStrategy } from '@nestjs/passport';
import { ExtractJwt, Strategy } from 'passport-jwt';
import { jwtSecret } from './auth.module';
import { UsersService } from 'src/users/users.service';

@Injectable()
export class JwtStrategy extends PassportStrategy(Strategy, 'jwt') {
	constructor(private usersService: UsersService) {
		super({
			jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
			secretOrKey: jwtSecret,
		});
	}

	async validate(payload: { userId: number }) {
		const user = await this.usersService.findOne(payload.userId);

		if (!user) {
			throw new UnauthorizedException();
		}

		return user;
	}
}