/* eslint-disable
    camelcase,
    handle-callback-err,
    no-unused-vars,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS101: Remove unnecessary use of Array.from
 * DS102: Remove unnecessary code created because of implicit returns
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
let CompileController;
const RequestParser = require("./RequestParser");
const CompileManager = require("./CompileManager");
const Settings = require("settings-sharelatex");
const Metrics = require("./Metrics");
const ProjectPersistenceManager = require("./ProjectPersistenceManager");
const logger = require("logger-sharelatex");
const Errors = require("./Errors");

module.exports = (CompileController = {
	compile(req, res, next) {
		if (next == null) { next = function(error) {}; }
		const timer = new Metrics.Timer("compile-request");
		return RequestParser.parse(req.body, function(error, request) {
			if (error != null) { return next(error); }
			request.project_id = req.params.project_id;
			if (req.params.user_id != null) { request.user_id = req.params.user_id; }
			return ProjectPersistenceManager.markProjectAsJustAccessed(request.project_id, function(error) {
				if (error != null) { return next(error); }
				return CompileManager.doCompileWithLock(request, function(error, outputFiles) {
					let code, status;
					if (outputFiles == null) { outputFiles = []; }
					if (error instanceof Errors.AlreadyCompilingError) {
						code = 423; // Http 423 Locked
						status = "compile-in-progress";
					} else if (error instanceof Errors.FilesOutOfSyncError) {
						code = 409; // Http 409 Conflict
						status = "retry";
					} else if (error != null ? error.terminated : undefined) {
						status = "terminated";
					} else if (error != null ? error.validate : undefined) {
						status = `validation-${error.validate}`;
					} else if (error != null ? error.timedout : undefined) {
						status = "timedout";
						logger.log({err: error, project_id: request.project_id}, "timeout running compile");
					} else if (error != null) {
						status = "error";
						code = 500;
						logger.warn({err: error, project_id: request.project_id}, "error running compile");
					} else {
						let file;
						status = "failure";
						for (file of Array.from(outputFiles)) {
							if (file.path != null ? file.path.match(/output\.pdf$/) : undefined) {
								status = "success";
							}
						}

						if (status === "failure") {
							logger.warn({project_id: request.project_id, outputFiles}, "project failed to compile successfully, no output.pdf generated");
						}

						// log an error if any core files are found
						for (file of Array.from(outputFiles)) {
							if (file.path === "core") {
								logger.error({project_id:request.project_id, req, outputFiles}, "core file found in output");
							}
						}
					}

					if (error != null) {
						outputFiles = error.outputFiles || [];
					}

					timer.done();
					return res.status(code || 200).send({
						compile: {
							status,
							error:  (error != null ? error.message : undefined) || error,
							outputFiles: outputFiles.map(file =>
								({
									url:
										`${Settings.apis.clsi.url}/project/${request.project_id}` +
										((request.user_id != null) ? `/user/${request.user_id}` : "") +
										((file.build != null) ? `/build/${file.build}` : "") +
										`/output/${file.path}`,
									path: file.path,
									type: file.type,
									build: file.build
								})
							)
						}
					});
			});
		});
	});
	},

	stopCompile(req, res, next) {
		const {project_id, user_id} = req.params;
		return CompileManager.stopCompile(project_id, user_id, function(error) {
			if (error != null) { return next(error); }
			return res.sendStatus(204);
		});
	},

	clearCache(req, res, next) {
		if (next == null) { next = function(error) {}; }
		return ProjectPersistenceManager.clearProject(req.params.project_id, req.params.user_id, function(error) {
			if (error != null) { return next(error); }
			return res.sendStatus(204);
		});
	}, // No content

	syncFromCode(req, res, next) {
		if (next == null) { next = function(error) {}; }
		const { file }   = req.query;
		const line   = parseInt(req.query.line, 10);
		const column = parseInt(req.query.column, 10);
		const { project_id } = req.params;
		const { user_id } = req.params;
		return CompileManager.syncFromCode(project_id, user_id, file, line, column, function(error, pdfPositions) {
			if (error != null) { return next(error); }
			return res.json({
				pdf: pdfPositions
			});
	});
	},

	syncFromPdf(req, res, next) {
		if (next == null) { next = function(error) {}; }
		const page   = parseInt(req.query.page, 10);
		const h      = parseFloat(req.query.h);
		const v      = parseFloat(req.query.v);
		const { project_id } = req.params;
		const { user_id } = req.params;
		return CompileManager.syncFromPdf(project_id, user_id, page, h, v, function(error, codePositions) {
			if (error != null) { return next(error); }
			return res.json({
				code: codePositions
			});
	});
	},

	wordcount(req, res, next) {
		if (next == null) { next = function(error) {}; }
		const file   = req.query.file || "main.tex";
		const { project_id } = req.params;
		const { user_id } = req.params;
		const { image } = req.query;
		logger.log({image, file, project_id}, "word count request");

		return CompileManager.wordcount(project_id, user_id, file, image, function(error, result) {
			if (error != null) { return next(error); }
			return res.json({
				texcount: result
			});
	});
	},

	status(req, res, next ){
		if (next == null) { next = function(error){}; }
		return res.send("OK");
	}
});