"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.JwtAuthGuard = void 0;
const common_1 = require("@nestjs/common");
const jose_1 = require("jose");
const identity_data_1 = require("../interfaces/identity-data");
const jwt = __importStar(require("jsonwebtoken"));
/**
 * JwtAuthGuard verifies JWTs issued by the external Identity Provider (Authentik)
 * using JWKS (RS256). It also accepts internal RayLab JWTs signed with a local secret.
 */
let JwtAuthGuard = class JwtAuthGuard {
    jwks = null;
    logger = new common_1.Logger('JwtAuthGuard');
    constructor() { }
    async canActivate(context) {
        const request = context.switchToHttp().getRequest();
        let token;
        const authHeader = request.headers.authorization;
        if (authHeader) {
            const [type, t] = authHeader.split(' ');
            if (type === 'Bearer' && t)
                token = t;
        }
        // fallback to cookie if no Authorization header
        if (!token) {
            token = request.cookies?.raylab_jwt;
            this.logger.debug(`No Authorization header. Trying cookie. cookiePresent=${!!request.cookies} tokenFromCookie=${!!token}`);
        }
        else {
            this.logger.debug('Authorization header found. Using Bearer token.');
        }
        if (!token) {
            this.logger.debug('No token found in Authorization header or cookie.');
            throw new common_1.UnauthorizedException('Authorization token is missing.');
        }
        const jwksUri = process.env.AUTHENTIK_JWKS_URI;
        // First try verifying with external JWKS (Authentik)
        if (jwksUri) {
            try {
                if (!this.jwks)
                    this.jwks = (0, jose_1.createRemoteJWKSet)(new URL(jwksUri));
                const { payload } = await (0, jose_1.jwtVerify)(token, this.jwks, {
                    issuer: process.env.AUTHENTIK_ISSUER,
                    audience: process.env.AUTHENTIK_AUDIENCE,
                });
                const identity = new identity_data_1.IdentityData(payload.sub, payload.preferred_username, payload.email, payload);
                request.identity = identity;
                // mark as external (verified by Authentik JWKS)
                request.identitySource = 'external';
                this.logger.debug(`Verified token using external JWKS. sub=${payload.sub}`);
                return true;
            }
            catch (err) {
                this.logger.debug(`External JWKS verification failed: ${err.message}`);
                // ignore and try internal verification
            }
        }
        // Fallback: verify with internal symmetric secret
        const secret = process.env.RAYLAB_JWT_SECRET;
        if (!secret) {
            this.logger.error('RAYLAB_JWT_SECRET is not configured.');
            throw new common_1.UnauthorizedException('Invalid or expired token.');
        }
        try {
            const payload = jwt.verify(token, secret);
            const identity = new identity_data_1.IdentityData(payload.sub, payload.preferred_username, payload.email, payload);
            request.identity = identity;
            // mark as internal (verified by RayLab internal secret)
            request.identitySource = 'internal';
            this.logger.debug(`Verified token using internal secret. sub=${payload.sub}`);
            return true;
        }
        catch (err) {
            this.logger.debug(`Internal token verification failed: ${err.message}`);
            throw new common_1.UnauthorizedException('Invalid or expired token.');
        }
    }
};
exports.JwtAuthGuard = JwtAuthGuard;
exports.JwtAuthGuard = JwtAuthGuard = __decorate([
    (0, common_1.Injectable)(),
    __metadata("design:paramtypes", [])
], JwtAuthGuard);
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