/* eslint-disable
    no-path-concat,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
const Path = require("path");

// environment variables renamed for consistency
// use AWS_ACCESS_KEY_ID-style going forward
if (process.env.AWS_KEY && !process.env.AWS_ACCESS_KEY_ID) {
	process.env.AWS_ACCESS_KEY_ID = process.env.AWS_KEY;
}
if (process.env.AWS_SECRET && !process.env.AWS_SECRET_ACCESS_KEY) {
	process.env.AWS_SECRET_ACCESS_KEY = process.env.AWS_SECRET;
}

// pre-backend setting, fall back to old behaviour
if (process.env.BACKEND == null) {
	if ((process.env.AWS_ACCESS_KEY_ID != null) || (process.env.S3_BUCKET_CREDENTIALS != null)) {
		process.env.BACKEND = "s3";
		process.env.USER_FILES_BUCKET_NAME = process.env.AWS_S3_USER_FILES_BUCKET_NAME;
		process.env.TEMPLATE_FILES_BUCKET_NAME = process.env.AWS_S3_TEMPLATE_FILES_BUCKET_NAME;
		process.env.PUBLIC_FILES_BUCKET_NAME = process.env.AWS_S3_PUBLIC_FILES_BUCKET_NAME;
	} else {
		process.env.BACKEND = "fs";
		process.env.USER_FILES_BUCKET_NAME = Path.resolve(__dirname + "/../user_files");
		process.env.TEMPLATE_FILES_BUCKET_NAME = Path.resolve(__dirname + "/../template_files");
		process.env.PUBLIC_FILES_BUCKET_NAME = Path.resolve(__dirname + "/../public_files");
	}
}

const settings = {
	internal: {
		filestore: {
			port: 3009,
			host: process.env.LISTEN_ADDRESS || "localhost"
		}
	},

	filestore: {
		// Which backend persistor to use.
		// Choices are
		// s3 - Amazon S3
		// fs - local filesystem
		// gcs - Google Cloud Storage
		backend: process.env.BACKEND,

		gcs: {
			endpoint:
				process.env.GCS_API_ENDPOINT ?{
					apiEndpoint: process.env.GCS_API_ENDPOINT,
					apiScheme: process.env.GCS_API_SCHEME,
					projectId: process.env.GCS_PROJECT_ID
				} : undefined,
			unlockBeforeDelete: process.env.GCS_UNLOCK_BEFORE_DELETE === "true",  // unlock an event-based hold before deleting. default false
			deletedBucketSuffix: process.env.GCS_DELETED_BUCKET_SUFFIX,          // if present, copy file to another bucket on delete. default null
			deleteConcurrency: parseInt(process.env.GCS_DELETE_CONCURRENCY) || 50,
			signedUrlExpiryInMs: parseInt(process.env.LINK_EXPIRY_TIMEOUT || 60000)
		},

		s3:
			(process.env.AWS_ACCESS_KEY_ID != null) || (process.env.S3_BUCKET_CREDENTIALS != null) ?{
				key: process.env.AWS_ACCESS_KEY_ID,
				secret: process.env.AWS_SECRET_ACCESS_KEY,
				endpoint: process.env.AWS_S3_ENDPOINT,
				pathStyle: process.env.AWS_S3_PATH_STYLE,
				partSize: process.env.AWS_S3_PARTSIZE || (100 * 1024 * 1024),
				bucketCreds: ((process.env.S3_BUCKET_CREDENTIALS != null) ? JSON.parse(process.env.S3_BUCKET_CREDENTIALS) : undefined)
			} : undefined,

		// GCS should be configured by the service account on the kubernetes pod. See GOOGLE_APPLICATION_CREDENTIALS,
		// which will be picked up automatically.

		stores: {
			user_files: process.env.USER_FILES_BUCKET_NAME,
			template_files: process.env.TEMPLATE_FILES_BUCKET_NAME,
			public_files: process.env.PUBLIC_FILES_BUCKET_NAME
		},

		fallback:
			(process.env.FALLBACK_BACKEND != null) ?{
				backend: process.env.FALLBACK_BACKEND,
				// mapping of bucket names on the fallback, to bucket names on the primary.
				// e.g. { myS3UserFilesBucketName: 'myGoogleUserFilesBucketName' }
				buckets: JSON.parse(process.env.FALLBACK_BUCKET_MAPPING || '{}'),
				copyOnMiss: process.env.COPY_ON_MISS === 'true'
			} : undefined,

		allowRedirects: process.env.ALLOW_REDIRECTS === 'true'
	},

	path: {
		uploadFolder: Path.resolve(__dirname + "/../uploads")
	},

	commands: {
		// Any commands to wrap the convert utility in, for example ["nice"], or ["firejail", "--profile=/etc/firejail/convert.profile"]
		convertCommandPrefix: []
	},

	enableConversions: process.env.ENABLE_CONVERSIONS === 'true',

	sentry: {
		dsn: process.env.SENTRY_DSN
	}
};

// Filestore health check
// ----------------------
// Project and file details to check in persistor when calling /health_check
if ((process.env.HEALTH_CHECK_PROJECT_ID != null) && (process.env.HEALTH_CHECK_FILE_ID != null)) {
	settings.health_check = {
		project_id: process.env.HEALTH_CHECK_PROJECT_ID,
		file_id: process.env.HEALTH_CHECK_FILE_ID
	};
}

module.exports = settings;