/*
       Licensed to the Apache Software Foundation (ASF) under one
       or more contributor license agreements.  See the NOTICE file
       distributed with this work for additional information
       regarding copyright ownership.  The ASF licenses this file
       to you 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.
*/

const fs = require('fs-extra');
const path = require('path');
const execa = require('execa');
const glob = require('fast-glob');
const events = require('cordova-common').events;
const CordovaError = require('cordova-common').CordovaError;
const check_reqs = require('../check_reqs');
const PackageType = require('../PackageType');
const { compareByAll } = require('../utils');
const { createEditor } = require('properties-parser');
const CordovaGradleConfigParserFactory = require('../config/CordovaGradleConfigParserFactory');

const MARKER = 'YOUR CHANGES WILL BE ERASED!';
const SIGNING_PROPERTIES = '-signing.properties';
const TEMPLATE =
    '# This file is automatically generated.\n' +
    '# Do not modify this file -- ' + MARKER + '\n';

const isPathArchSpecific = p => /-x86|-arm/.test(path.basename(p));

const outputFileComparator = compareByAll([
    // Sort arch specific builds after generic ones
    isPathArchSpecific,

    // Sort unsigned builds after signed ones
    filePath => /-unsigned/.test(path.basename(filePath)),

    // Sort by file modification time, latest first
    filePath => -fs.statSync(filePath).mtime.getTime(),

    // Sort by file name length, ascending
    filePath => filePath.length
]);

/**
 * @param {'apk' | 'aab'} bundleType
 * @param {'debug' | 'release'} buildType
 * @param {{arch?: string}} options
 */
function findOutputFiles (bundleType, buildType, { arch } = {}) {
    let files = glob.sync(`**/*.${bundleType}`, {
        absolute: true,
        cwd: path.resolve(this[`${bundleType}Dir`], buildType)
    }).map(path.normalize);

    if (files.length === 0) return files;

    // Assume arch-specific build if newest apk has -x86 or -arm.
    const archSpecific = isPathArchSpecific(files[0]);

    // And show only arch-specific ones (or non-arch-specific)
    files = files.filter(p => isPathArchSpecific(p) === archSpecific);

    if (archSpecific && files.length > 1 && arch) {
        files = files.filter(p => path.basename(p).includes('-' + arch));
    }

    return files.sort(outputFileComparator);
}

class ProjectBuilder {
    constructor (rootDirectory) {
        this.root = rootDirectory;
        this.apkDir = path.join(this.root, 'app', 'build', 'outputs', 'apk');
        this.aabDir = path.join(this.root, 'app', 'build', 'outputs', 'bundle');
    }

    getArgs (cmd, opts) {
        let args = [
            '-b', path.join(this.root, 'build.gradle')
        ];
        if (opts.extraArgs) {
            args = args.concat(opts.extraArgs);
        }

        let buildCmd = cmd;
        if (opts.packageType === PackageType.BUNDLE) {
            if (cmd === 'release') {
                buildCmd = ':app:bundleRelease';
            } else if (cmd === 'debug') {
                buildCmd = ':app:bundleDebug';
            }
        } else {
            if (cmd === 'release') {
                buildCmd = 'cdvBuildRelease';
            } else if (cmd === 'debug') {
                buildCmd = 'cdvBuildDebug';
            }

            if (opts.arch) {
                args.push('-PcdvBuildArch=' + opts.arch);
            }
        }

        args.push(buildCmd);

        return args;
    }

    /*
    * This returns a promise
    */
    runGradleWrapper (gradle_cmd) {
        const gradlePath = path.join(this.root, 'gradlew');
        const wrapperGradle = path.join(this.root, 'wrapper.gradle');
        if (fs.existsSync(gradlePath)) {
            // Literally do nothing, for some reason this works, while !fs.existsSync didn't on Windows
        } else {
            return execa(gradle_cmd, ['-p', this.root, 'wrapper', '-b', wrapperGradle], { stdio: 'inherit' });
        }
    }

    readProjectProperties () {
        function findAllUniq (data, r) {
            const s = {};
            let m;
            while ((m = r.exec(data))) {
                s[m[1]] = 1;
            }
            return Object.keys(s);
        }

        const data = fs.readFileSync(path.join(this.root, 'project.properties'), 'utf8');
        return {
            libs: findAllUniq(data, /^\s*android\.library\.reference\.\d+=(.*)(?:\s|$)/mg),
            gradleIncludes: findAllUniq(data, /^\s*cordova\.gradle\.include\.\d+=(.*)(?:\s|$)/mg),
            systemLibs: findAllUniq(data, /^\s*cordova\.system\.library\.\d+=((?!.*\().*)(?:\s|$)/mg),
            bomPlatforms: findAllUniq(data, /^\s*cordova\.system\.library\.\d+=platform\((?:'|")(.*)(?:'|")\)/mg)
        };
    }

    // Makes the project buildable, minus the gradle wrapper.
    prepBuildFiles () {
        // Update the version of build.gradle in each dependent library.
        const pluginBuildGradle = path.join(__dirname, 'plugin-build.gradle');
        const propertiesObj = this.readProjectProperties();
        const subProjects = propertiesObj.libs;

        // Check and copy the gradle file into the subproject
        // Called by the loop before this function def

        const checkAndCopy = function (subProject, root) {
            const subProjectGradle = path.join(root, subProject, 'build.gradle');
            // This is the future-proof way of checking if a file exists
            // This must be synchronous to satisfy a Travis test
            try {
                fs.accessSync(subProjectGradle, fs.F_OK);
            } catch (e) {
                fs.copySync(pluginBuildGradle, subProjectGradle);
            }
        };

        for (let i = 0; i < subProjects.length; ++i) {
            if (subProjects[i] !== 'CordovaLib') {
                checkAndCopy(subProjects[i], this.root);
            }
        }

        // get project name cdv-gradle-config.
        const cdvGradleConfig = CordovaGradleConfigParserFactory.create(this.root);
        const projectName = cdvGradleConfig.getProjectNameFromPackageName();

        // Remove the proj.id/name- prefix from projects: https://issues.apache.org/jira/browse/CB-9149
        const settingsGradlePaths = subProjects.map(function (p) {
            const realDir = p.replace(/[/\\]/g, ':');
            const libName = realDir.replace(projectName + '-', '');
            let str = 'include ":' + libName + '"\n';
            if (realDir.indexOf(projectName + '-') !== -1) {
                str += 'project(":' + libName + '").projectDir = new File("' + p + '")\n';
            }
            return str;
        });

        // Update subprojects within settings.gradle.
        fs.writeFileSync(path.join(this.root, 'settings.gradle'),
            '// GENERATED FILE - DO NOT EDIT\n' +
            'apply from: "cdv-gradle-name.gradle"\n' +
            'include ":"\n' +
            settingsGradlePaths.join(''));

        // Touch empty cdv-gradle-name.gradle file if missing.
        if (!fs.pathExistsSync(path.join(this.root, 'cdv-gradle-name.gradle'))) {
            fs.writeFileSync(path.join(this.root, 'cdv-gradle-name.gradle'), '');
        }

        // Update dependencies within build.gradle.
        let buildGradle = fs.readFileSync(path.join(this.root, 'app', 'build.gradle'), 'utf8');
        let depsList = '';
        const root = this.root;
        const insertExclude = function (p) {
            const gradlePath = path.join(root, p, 'build.gradle');
            const projectGradleFile = fs.readFileSync(gradlePath, 'utf-8');
            if (projectGradleFile.indexOf('CordovaLib') !== -1) {
                depsList += '{\n        exclude module:("CordovaLib")\n    }\n';
            } else {
                depsList += '\n';
            }
        };
        subProjects.forEach(function (p) {
            events.emit('log', 'Subproject Path: ' + p);
            const libName = p.replace(/[/\\]/g, ':').replace(projectName + '-', '');
            if (libName !== 'app') {
                depsList += '    implementation(project(path: ":' + libName + '"))';
                insertExclude(p);
            }
        });
        // For why we do this mapping: https://issues.apache.org/jira/browse/CB-8390
        const SYSTEM_LIBRARY_MAPPINGS = [
            [/^\/?extras\/android\/support\/(.*)$/, 'com.android.support:support-$1:+'],
            [/^\/?google\/google_play_services\/libproject\/google-play-services_lib\/?$/, 'com.google.android.gms:play-services:+']
        ];

        propertiesObj.bomPlatforms.forEach(function (p) {
            if (!/:.*:/.exec(p)) {
                throw new CordovaError('Malformed BoM platform: ' + p);
            }

            // Add bom platform
            depsList += '    implementation platform("' + p + '")\n';
        });

        propertiesObj.systemLibs.forEach(function (p) {
            let mavenRef;
            // It's already in gradle form if it has two ':'s
            if (/:.*:/.exec(p)) {
                mavenRef = p;
            } else if (/:.*/.exec(p)) {
                // Support BoM imports
                mavenRef = p;
                events.emit('warn', 'Library expects a BoM package: ' + p);
            } else {
                for (let i = 0; i < SYSTEM_LIBRARY_MAPPINGS.length; ++i) {
                    const pair = SYSTEM_LIBRARY_MAPPINGS[i];
                    if (pair[0].exec(p)) {
                        mavenRef = p.replace(pair[0], pair[1]);
                        break;
                    }
                }
                if (!mavenRef) {
                    throw new CordovaError('Unsupported system library (does not work with gradle): ' + p);
                }
            }
            depsList += '    implementation "' + mavenRef + '"\n';
        });

        buildGradle = buildGradle.replace(/(SUB-PROJECT DEPENDENCIES START)[\s\S]*(\/\/ SUB-PROJECT DEPENDENCIES END)/, '$1\n' + depsList + '    $2');
        let includeList = '';

        propertiesObj.gradleIncludes.forEach(function (includePath) {
            includeList += 'apply from: "../' + includePath + '"\n';
        });
        buildGradle = buildGradle.replace(/(PLUGIN GRADLE EXTENSIONS START)[\s\S]*(\/\/ PLUGIN GRADLE EXTENSIONS END)/, '$1\n' + includeList + '$2');
        // This needs to be stored in the app gradle, not the root grade
        fs.writeFileSync(path.join(this.root, 'app', 'build.gradle'), buildGradle);
    }

    prepEnv (opts) {
        const self = this;
        return check_reqs.check_gradle()
            .then(function (gradlePath) {
                return self.runGradleWrapper(gradlePath);
            }).then(function () {
                return self.prepBuildFiles();
            }).then(() => {
                const config = this._getCordovaConfig();
                // update/set the distributionUrl in the gradle-wrapper.properties
                const gradleWrapperPropertiesPath = path.join(self.root, 'gradle/wrapper/gradle-wrapper.properties');
                const gradleWrapperProperties = createEditor(gradleWrapperPropertiesPath);
                const distributionUrl = process.env.CORDOVA_ANDROID_GRADLE_DISTRIBUTION_URL || `https://services.gradle.org/distributions/gradle-${config.GRADLE_VERSION}-all.zip`;
                gradleWrapperProperties.set('distributionUrl', distributionUrl);
                gradleWrapperProperties.save();

                events.emit('verbose', `Gradle Distribution URL: ${distributionUrl}`);
            })
            .then(() => {
                const signingPropertiesPath = path.join(self.root, `${opts.buildType}${SIGNING_PROPERTIES}`);

                if (fs.existsSync(signingPropertiesPath)) fs.removeSync(signingPropertiesPath);
                if (opts.packageInfo) {
                    fs.ensureFileSync(signingPropertiesPath);
                    const signingProperties = createEditor(signingPropertiesPath);
                    signingProperties.addHeadComment(TEMPLATE);
                    opts.packageInfo.appendToProperties(signingProperties);
                }
            });
    }

    /**
     * @private
     * @returns The user defined configs
     */
    _getCordovaConfig () {
        return fs.readJSONSync(path.join(this.root, 'cdv-gradle-config.json'));
    }

    /*
    * Builds the project with gradle.
    * Returns a promise.
    */
    async build (opts) {
        const wrapper = path.join(this.root, 'gradlew');
        const args = this.getArgs(opts.buildType === 'debug' ? 'debug' : 'release', opts);

        events.emit('verbose', `Running Gradle Build: ${wrapper} ${args.join(' ')}`);

        try {
            return await execa(wrapper, args, { stdio: 'inherit', cwd: path.resolve(this.root) });
        } catch (error) {
            if (error.toString().includes('failed to find target with hash string')) {
                // Add hint from check_android_target to error message
                try {
                    await check_reqs.check_android_target(this.root);
                } catch (checkAndroidTargetError) {
                    error.message += '\n' + checkAndroidTargetError.message;
                }
            }
            throw error;
        }
    }

    clean (opts) {
        const wrapper = path.join(this.root, 'gradlew');
        const args = this.getArgs('clean', opts);
        return execa(wrapper, args, { stdio: 'inherit', cwd: path.resolve(this.root) })
            .then(() => {
                fs.removeSync(path.join(this.root, 'out'));

                ['debug', 'release'].map(config => path.join(this.root, `${config}${SIGNING_PROPERTIES}`))
                    .forEach(file => {
                        const hasFile = fs.existsSync(file);
                        const hasMarker = hasFile && fs.readFileSync(file, 'utf8')
                            .includes(MARKER);

                        if (hasFile && hasMarker) fs.removeSync(file);
                    });
            });
    }

    findOutputApks (build_type, arch) {
        return findOutputFiles.call(this, 'apk', build_type, { arch });
    }

    findOutputBundles (build_type) {
        return findOutputFiles.call(this, 'aab', build_type);
    }

    fetchBuildResults (build_type, arch) {
        return {
            apkPaths: this.findOutputApks(build_type, arch),
            buildType: build_type
        };
    }
}

module.exports = ProjectBuilder;