/*! firebase-admin v12.7.0 */
"use strict";
/*!
 * @license
 * Copyright 2021 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.FirebaseFunctionsError = exports.FUNCTIONS_ERROR_CODE_MAPPING = exports.FunctionsApiClient = exports.EMULATED_SERVICE_ACCOUNT_DEFAULT = void 0;
const api_request_1 = require("../utils/api-request");
const error_1 = require("../utils/error");
const utils = require("../utils/index");
const validator = require("../utils/validator");
const credential_internal_1 = require("../app/credential-internal");
const CLOUD_TASKS_API_RESOURCE_PATH = 'projects/{projectId}/locations/{locationId}/queues/{resourceId}/tasks';
const CLOUD_TASKS_API_URL_FORMAT = 'https://cloudtasks.googleapis.com/v2/' + CLOUD_TASKS_API_RESOURCE_PATH;
const FIREBASE_FUNCTION_URL_FORMAT = 'https://{locationId}-{projectId}.cloudfunctions.net/{resourceId}';
exports.EMULATED_SERVICE_ACCOUNT_DEFAULT = 'emulated-service-acct@email.com';
const FIREBASE_FUNCTIONS_CONFIG_HEADERS = {
    'X-Firebase-Client': `fire-admin-node/${utils.getSdkVersion()}`
};
// Default canonical location ID of the task queue.
const DEFAULT_LOCATION = 'us-central1';
/**
 * Class that facilitates sending requests to the Firebase Functions backend API.
 *
 * @internal
 */
class FunctionsApiClient {
    constructor(app) {
        this.app = app;
        if (!validator.isNonNullObject(app) || !('options' in app)) {
            throw new FirebaseFunctionsError('invalid-argument', 'First argument passed to getFunctions() must be a valid Firebase app instance.');
        }
        this.httpClient = new api_request_1.AuthorizedHttpClient(app);
    }
    /**
     * Deletes a task from a queue.
     *
     * @param id - The ID of the task to delete.
     * @param functionName - The function name of the queue.
     * @param extensionId - Optional canonical ID of the extension.
     */
    async delete(id, functionName, extensionId) {
        if (!validator.isNonEmptyString(functionName)) {
            throw new FirebaseFunctionsError('invalid-argument', 'Function name must be a non empty string');
        }
        if (!validator.isTaskId(id)) {
            throw new FirebaseFunctionsError('invalid-argument', 'id can contain only letters ([A-Za-z]), numbers ([0-9]), '
                + 'hyphens (-), or underscores (_). The maximum length is 500 characters.');
        }
        let resources;
        try {
            resources = utils.parseResourceName(functionName, 'functions');
        }
        catch (err) {
            throw new FirebaseFunctionsError('invalid-argument', 'Function name must be a single string or a qualified resource name');
        }
        resources.projectId = resources.projectId || await this.getProjectId();
        resources.locationId = resources.locationId || DEFAULT_LOCATION;
        if (!validator.isNonEmptyString(resources.resourceId)) {
            throw new FirebaseFunctionsError('invalid-argument', 'No valid function name specified to enqueue tasks for.');
        }
        if (typeof extensionId !== 'undefined' && validator.isNonEmptyString(extensionId)) {
            resources.resourceId = `ext-${extensionId}-${resources.resourceId}`;
        }
        try {
            const serviceUrl = tasksEmulatorUrl(resources)?.concat('/', id)
                ?? await this.getUrl(resources, CLOUD_TASKS_API_URL_FORMAT.concat('/', id));
            const request = {
                method: 'DELETE',
                url: serviceUrl,
                headers: FIREBASE_FUNCTIONS_CONFIG_HEADERS,
            };
            await this.httpClient.send(request);
        }
        catch (err) {
            if (err instanceof api_request_1.RequestResponseError) {
                if (err.response.status === 404) {
                    // if no task with the provided ID exists, then ignore the delete.
                    return;
                }
                throw this.toFirebaseError(err);
            }
            else {
                throw err;
            }
        }
    }
    /**
     * Creates a task and adds it to a queue.
     *
     * @param data - The data payload of the task.
     * @param functionName - The functionName of the queue.
     * @param extensionId - Optional canonical ID of the extension.
     * @param opts - Optional options when enqueuing a new task.
     */
    async enqueue(data, functionName, extensionId, opts) {
        if (!validator.isNonEmptyString(functionName)) {
            throw new FirebaseFunctionsError('invalid-argument', 'Function name must be a non empty string');
        }
        let resources;
        try {
            resources = utils.parseResourceName(functionName, 'functions');
        }
        catch (err) {
            throw new FirebaseFunctionsError('invalid-argument', 'Function name must be a single string or a qualified resource name');
        }
        resources.projectId = resources.projectId || await this.getProjectId();
        resources.locationId = resources.locationId || DEFAULT_LOCATION;
        if (!validator.isNonEmptyString(resources.resourceId)) {
            throw new FirebaseFunctionsError('invalid-argument', 'No valid function name specified to enqueue tasks for.');
        }
        if (typeof extensionId !== 'undefined' && validator.isNonEmptyString(extensionId)) {
            resources.resourceId = `ext-${extensionId}-${resources.resourceId}`;
        }
        const task = this.validateTaskOptions(data, resources, opts);
        try {
            const serviceUrl = tasksEmulatorUrl(resources) ??
                await this.getUrl(resources, CLOUD_TASKS_API_URL_FORMAT);
            const taskPayload = await this.updateTaskPayload(task, resources, extensionId);
            const request = {
                method: 'POST',
                url: serviceUrl,
                headers: FIREBASE_FUNCTIONS_CONFIG_HEADERS,
                data: {
                    task: taskPayload,
                }
            };
            await this.httpClient.send(request);
        }
        catch (err) {
            if (err instanceof api_request_1.RequestResponseError) {
                if (err.response.status === 409) {
                    throw new FirebaseFunctionsError('task-already-exists', `A task with ID ${opts?.id} already exists`);
                }
                else {
                    throw this.toFirebaseError(err);
                }
            }
            else {
                throw err;
            }
        }
    }
    getUrl(resourceName, urlFormat) {
        let { locationId } = resourceName;
        const { projectId, resourceId } = resourceName;
        if (typeof locationId === 'undefined' || !validator.isNonEmptyString(locationId)) {
            locationId = DEFAULT_LOCATION;
        }
        return Promise.resolve()
            .then(() => {
            if (typeof projectId !== 'undefined' && validator.isNonEmptyString(projectId)) {
                return projectId;
            }
            return this.getProjectId();
        })
            .then((projectId) => {
            const urlParams = {
                projectId,
                locationId,
                resourceId,
            };
            // Formats a string of form 'project/{projectId}/{api}' and replaces
            // with corresponding arguments {projectId: '1234', api: 'resource'}
            // and returns output: 'project/1234/resource'.
            return utils.formatString(urlFormat, urlParams);
        });
    }
    getProjectId() {
        if (this.projectId) {
            return Promise.resolve(this.projectId);
        }
        return utils.findProjectId(this.app)
            .then((projectId) => {
            if (!validator.isNonEmptyString(projectId)) {
                throw new FirebaseFunctionsError('unknown-error', 'Failed to determine project ID. Initialize the '
                    + 'SDK with service account credentials or set project ID as an app option. '
                    + 'Alternatively, set the GOOGLE_CLOUD_PROJECT environment variable.');
            }
            this.projectId = projectId;
            return projectId;
        });
    }
    getServiceAccount() {
        if (this.accountId) {
            return Promise.resolve(this.accountId);
        }
        return utils.findServiceAccountEmail(this.app)
            .then((accountId) => {
            if (!validator.isNonEmptyString(accountId)) {
                throw new FirebaseFunctionsError('unknown-error', 'Failed to determine service account. Initialize the '
                    + 'SDK with service account credentials or set service account ID as an app option.');
            }
            this.accountId = accountId;
            return accountId;
        });
    }
    validateTaskOptions(data, resources, opts) {
        const task = {
            httpRequest: {
                url: '',
                oidcToken: {
                    serviceAccountEmail: '',
                },
                body: Buffer.from(JSON.stringify({ data })).toString('base64'),
                headers: {
                    'Content-Type': 'application/json',
                    ...opts?.headers,
                }
            }
        };
        if (typeof opts !== 'undefined') {
            if (!validator.isNonNullObject(opts)) {
                throw new FirebaseFunctionsError('invalid-argument', 'TaskOptions must be a non-null object');
            }
            if ('scheduleTime' in opts && 'scheduleDelaySeconds' in opts) {
                throw new FirebaseFunctionsError('invalid-argument', 'Both scheduleTime and scheduleDelaySeconds are provided. '
                    + 'Only one value should be set.');
            }
            if ('scheduleTime' in opts && typeof opts.scheduleTime !== 'undefined') {
                if (!(opts.scheduleTime instanceof Date)) {
                    throw new FirebaseFunctionsError('invalid-argument', 'scheduleTime must be a valid Date object.');
                }
                task.scheduleTime = opts.scheduleTime.toISOString();
            }
            if ('scheduleDelaySeconds' in opts && typeof opts.scheduleDelaySeconds !== 'undefined') {
                if (!validator.isNumber(opts.scheduleDelaySeconds) || opts.scheduleDelaySeconds < 0) {
                    throw new FirebaseFunctionsError('invalid-argument', 'scheduleDelaySeconds must be a non-negative duration in seconds.');
                }
                const date = new Date();
                date.setSeconds(date.getSeconds() + opts.scheduleDelaySeconds);
                task.scheduleTime = date.toISOString();
            }
            if (typeof opts.dispatchDeadlineSeconds !== 'undefined') {
                if (!validator.isNumber(opts.dispatchDeadlineSeconds) || opts.dispatchDeadlineSeconds < 15
                    || opts.dispatchDeadlineSeconds > 1800) {
                    throw new FirebaseFunctionsError('invalid-argument', 'dispatchDeadlineSeconds must be a non-negative duration in seconds '
                        + 'and must be in the range of 15s to 30 mins.');
                }
                task.dispatchDeadline = `${opts.dispatchDeadlineSeconds}s`;
            }
            if ('id' in opts && typeof opts.id !== 'undefined') {
                if (!validator.isTaskId(opts.id)) {
                    throw new FirebaseFunctionsError('invalid-argument', 'id can contain only letters ([A-Za-z]), numbers ([0-9]), '
                        + 'hyphens (-), or underscores (_). The maximum length is 500 characters.');
                }
                const resourcePath = utils.formatString(CLOUD_TASKS_API_RESOURCE_PATH, {
                    projectId: resources.projectId,
                    locationId: resources.locationId,
                    resourceId: resources.resourceId,
                });
                task.name = resourcePath.concat('/', opts.id);
            }
            if (typeof opts.uri !== 'undefined') {
                if (!validator.isURL(opts.uri)) {
                    throw new FirebaseFunctionsError('invalid-argument', 'uri must be a valid URL string.');
                }
                task.httpRequest.url = opts.uri;
            }
        }
        return task;
    }
    async updateTaskPayload(task, resources, extensionId) {
        const defaultUrl = process.env.CLOUD_TASKS_EMULATOR_HOST ?
            ''
            : await this.getUrl(resources, FIREBASE_FUNCTION_URL_FORMAT);
        const functionUrl = validator.isNonEmptyString(task.httpRequest.url)
            ? task.httpRequest.url
            : defaultUrl;
        task.httpRequest.url = functionUrl;
        // When run from a deployed extension, we should be using ComputeEngineCredentials
        if (validator.isNonEmptyString(extensionId) && this.app.options.credential instanceof credential_internal_1.ComputeEngineCredential) {
            const idToken = await this.app.options.credential.getIDToken(functionUrl);
            task.httpRequest.headers = { ...task.httpRequest.headers, 'Authorization': `Bearer ${idToken}` };
            // Don't send httpRequest.oidcToken if we set Authorization header, or Cloud Tasks will overwrite it.
            delete task.httpRequest.oidcToken;
        }
        else {
            try {
                const account = await this.getServiceAccount();
                task.httpRequest.oidcToken = { serviceAccountEmail: account };
            }
            catch (e) {
                if (process.env.CLOUD_TASKS_EMULATOR_HOST) {
                    task.httpRequest.oidcToken = { serviceAccountEmail: exports.EMULATED_SERVICE_ACCOUNT_DEFAULT };
                }
                else {
                    throw e;
                }
            }
        }
        return task;
    }
    toFirebaseError(err) {
        if (err instanceof error_1.PrefixedFirebaseError) {
            return err;
        }
        const response = err.response;
        if (!response.isJson()) {
            return new FirebaseFunctionsError('unknown-error', `Unexpected response with status: ${response.status} and body: ${response.text}`);
        }
        const error = response.data.error || {};
        let code = 'unknown-error';
        if (error.status && error.status in exports.FUNCTIONS_ERROR_CODE_MAPPING) {
            code = exports.FUNCTIONS_ERROR_CODE_MAPPING[error.status];
        }
        const message = error.message || `Unknown server error: ${response.text}`;
        return new FirebaseFunctionsError(code, message);
    }
}
exports.FunctionsApiClient = FunctionsApiClient;
exports.FUNCTIONS_ERROR_CODE_MAPPING = {
    ABORTED: 'aborted',
    INVALID_ARGUMENT: 'invalid-argument',
    INVALID_CREDENTIAL: 'invalid-credential',
    INTERNAL: 'internal-error',
    FAILED_PRECONDITION: 'failed-precondition',
    PERMISSION_DENIED: 'permission-denied',
    UNAUTHENTICATED: 'unauthenticated',
    NOT_FOUND: 'not-found',
    UNKNOWN: 'unknown-error',
};
/**
 * Firebase Functions error code structure. This extends PrefixedFirebaseError.
 *
 * @param code - The error code.
 * @param message - The error message.
 * @constructor
 */
class FirebaseFunctionsError extends error_1.PrefixedFirebaseError {
    constructor(code, message) {
        super('functions', code, message);
        /* tslint:disable:max-line-length */
        // Set the prototype explicitly. See the following link for more details:
        // https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#extending-built-ins-like-error-array-and-map-may-no-longer-work
        /* tslint:enable:max-line-length */
        this.__proto__ = FirebaseFunctionsError.prototype;
    }
}
exports.FirebaseFunctionsError = FirebaseFunctionsError;
function tasksEmulatorUrl(resources) {
    if (process.env.CLOUD_TASKS_EMULATOR_HOST) {
        return `http://${process.env.CLOUD_TASKS_EMULATOR_HOST}/projects/${resources.projectId}/locations/${resources.locationId}/queues/${resources.resourceId}/tasks`;
    }
    return undefined;
}
