/*
    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('node:fs');
const path = require('node:path');
const xcode = require('xcode');
const check_reqs = require('./check_reqs');
const events = require('cordova-common').events;
const CordovaError = require('cordova-common').CordovaError;

PodsJson.FILENAME = 'pods.json';
PodsJson.LIBRARY = 'libraries';
PodsJson.SOURCE = 'sources';
PodsJson.DECLARATION = 'declarations';

function PodsJson (podsJsonPath) {
    this.path = podsJsonPath;
    this.contents = null;
    this.__dirty = false;

    const filename = this.path.split(path.sep).pop();
    if (filename !== PodsJson.FILENAME) {
        throw new CordovaError(`PodsJson: The file at ${this.path} is not \`${PodsJson.FILENAME}\`.`);
    }

    if (!fs.existsSync(this.path)) {
        events.emit('verbose', `pods.json: The file at ${this.path} does not exist.`);
        events.emit('verbose', 'Creating new pods.json in platforms/ios');
        this.clear();
        this.write();
    } else {
        events.emit('verbose', 'pods.json found in platforms/ios');
        // load contents
        const contents = fs.readFileSync(this.path, 'utf8');
        this.contents = JSON.parse(contents);
    }
    this.__updateFormatIfNecessary();
}

PodsJson.prototype.__isOldFormat = function () {
    if (this.contents !== null) {
        if (this.contents.declarations === undefined ||
            this.contents.sources === undefined ||
            this.contents.libraries === undefined) {
            return true;
        }
    }
    return false;
};

PodsJson.prototype.__updateFormatIfNecessary = function () {
    if (this.__isOldFormat()) {
        this.contents = {
            declarations: {},
            sources: {},
            libraries: this.contents
        };
        this.__dirty = true;
        events.emit('verbose', 'Update format of pods.json');
    }
};

PodsJson.prototype.getLibraries = function () {
    return this.contents[PodsJson.LIBRARY];
};

PodsJson.prototype.__get = function (kind, name) {
    return this.contents[kind][name];
};

PodsJson.prototype.getLibrary = function (name) {
    return this.__get(PodsJson.LIBRARY, name);
};

PodsJson.prototype.getSource = function (name) {
    return this.__get(PodsJson.SOURCE, name);
};

PodsJson.prototype.getDeclaration = function (name) {
    return this.__get(PodsJson.DECLARATION, name);
};

PodsJson.prototype.__remove = function (kind, name) {
    if (this.contents[kind][name]) {
        delete this.contents[kind][name];
        this.__dirty = true;
        events.emit('verbose', `Remove from pods.json for \`${name}\` - \`%s\``);
    }
};

PodsJson.prototype.removeLibrary = function (name) {
    this.__remove(PodsJson.LIBRARY, name);
};

PodsJson.prototype.removeSource = function (name) {
    this.__remove(PodsJson.SOURCE, name);
};

PodsJson.prototype.removeDeclaration = function (name) {
    this.__remove(PodsJson.DECLARATION, name);
};

PodsJson.prototype.clear = function () {
    this.contents = {
        declarations: {},
        sources: {},
        libraries: {}
    };
    this.__dirty = true;
};

PodsJson.prototype.destroy = function () {
    fs.unlinkSync(this.path);
    events.emit('verbose', `Deleted \`${this.path}\``);
};

PodsJson.prototype.write = function () {
    if (this.contents) {
        fs.writeFileSync(this.path, JSON.stringify(this.contents, null, 4));
        this.__dirty = false;
        events.emit('verbose', 'Wrote to pods.json.');
    }
};

PodsJson.prototype.__increment = function (kind, name) {
    const val = this.__get(kind, name);
    if (val) {
        val.count++;
    }
};

PodsJson.prototype.incrementLibrary = function (name) {
    this.__increment(PodsJson.LIBRARY, name);
};

PodsJson.prototype.incrementSource = function (name) {
    this.__increment(PodsJson.SOURCE, name);
};

PodsJson.prototype.incrementDeclaration = function (name) {
    this.__increment(PodsJson.DECLARATION, name);
};

PodsJson.prototype.__decrement = function (kind, name) {
    const val = this.__get(kind, name);
    if (val) {
        val.count--;
        if (val.count <= 0) {
            this.__remove(kind, name);
        }
    }
};

PodsJson.prototype.decrementLibrary = function (name) {
    this.__decrement(PodsJson.LIBRARY, name);
};

PodsJson.prototype.decrementSource = function (name) {
    this.__decrement(PodsJson.SOURCE, name);
};

PodsJson.prototype.decrementDeclaration = function (name) {
    this.__decrement(PodsJson.DECLARATION, name);
};

PodsJson.prototype.__setJson = function (kind, name, json) {
    this.contents[kind][name] = Object.assign({}, json);
    this.__dirty = true;
    events.emit('verbose', `Set pods.json for \`${kind}\` - \`${name}\``);
};

// sample json for library
// { name: "Eureka", spec: "4.2.0", "swift-version": "4.1", count: 1 }
PodsJson.prototype.setJsonLibrary = function (name, json) {
    this.__setJson(PodsJson.LIBRARY, name, json);
};

// sample json for source
// { source: "https://github.com/brightcove/BrightcoveSpecs.git", count: 1 }
PodsJson.prototype.setJsonSource = function (name, json) {
    this.__setJson(PodsJson.SOURCE, name, json);
};

// sample json for declaration
// { declaration: ""}
PodsJson.prototype.setJsonDeclaration = function (name, json) {
    this.__setJson(PodsJson.DECLARATION, name, json);
};

PodsJson.prototype.isDirty = function () {
    return this.__dirty;
};

/**
 * set Swift Version for all CocoaPods libraries
 */
PodsJson.prototype.setSwiftVersionForCocoaPodsLibraries = function (projectRoot) {
    let __dirty = false;
    return check_reqs.check_cocoapods().then(toolOptions => {
        if (toolOptions.ignore) {
            events.emit('verbose', '=== skip Swift Version Settings For Cocoapods Libraries');
        } else {
            const podPbxPath = path.join(projectRoot, 'Pods', 'Pods.xcodeproj', 'project.pbxproj');
            const podXcodeproj = xcode.project(podPbxPath);
            podXcodeproj.parseSync();

            const podTargets = podXcodeproj.pbxNativeTargetSection();
            const podConfigurationList = podXcodeproj.pbxXCConfigurationList();
            const podConfigs = podXcodeproj.pbxXCBuildConfigurationSection();

            const libraries = this.getLibraries();
            Object.keys(libraries).forEach(key => {
                const podJson = libraries[key];
                const name = podJson.name;
                const swiftVersion = podJson['swift-version'];
                if (swiftVersion) {
                    __dirty = true;
                    Object.keys(podTargets)
                        .filter(targetKey => podTargets[targetKey].productName === name)
                        .map(targetKey => podTargets[targetKey].buildConfigurationList)
                        .map(buildConfigurationListId => podConfigurationList[buildConfigurationListId])
                        .map(buildConfigurationList => buildConfigurationList.buildConfigurations)
                        .reduce((acc, buildConfigurations) => acc.concat(buildConfigurations), [])
                        .map(buildConfiguration => buildConfiguration.value)
                        .forEach(buildId => {
                            __dirty = true;
                            podConfigs[buildId].buildSettings.SWIFT_VERSION = swiftVersion;
                        });
                }
            });
            if (__dirty) {
                fs.writeFileSync(podPbxPath, podXcodeproj.writeSync(), 'utf-8');
            }
        }
    });
};

module.exports.PodsJson = PodsJson;
