let fs = require('fs');
let path = require('path');

module.exports = {
    'exportInfo': function () {
        cc.log("export info");

        let rootPath = Editor.url('db://assets/resources/edt_prefab', 'utf8')
        let allPrefabs = this.getAllUIPrefab(rootPath);
        let allPrefabInfos = this.getAllPrefabInfo(rootPath, allPrefabs);
        this.writeInfoFile(allPrefabInfos);
        // allPrefabInfos.forEach((info) => {
        //     // cc.log(info.name, info.path);
        // });
    },

    isPrefab(file) {
        return /\.(prefab)$/.test(file);
    },

    getAllUIPrefab(folder){
        const files = fs.readdirSync(folder);
        let result = []
        files.forEach((file) => {
            const filePath = path.join(folder, file);
            if (fs.statSync(filePath).isDirectory()) {
                result = result.concat(this.getAllUIPrefab(filePath));
            } else if (this.isPrefab(filePath)) {
                result.push(filePath)
            }
        });
        return result;
    },

    getAllPrefabInfo(rootPath, allPrefabs) {
        let result = [];
        allPrefabs.forEach((file) => {
            let prefabName = path.basename(file, path.extname(file));
            let prefabPath = file.replace(rootPath, "").replace(".prefab", "").substring(1)
            result.push({
                "name":prefabName,
                "path":prefabPath,
            })
        });

        result.sort(function (a, b) {
            return a.name.localeCompare(b.name); //降序排序
        });
        return result;
    },

    writeInfoFile(allPrefabInfos) {
        let result = "";
        let enumTemplate = "ENUM_TEMPLATE";
        let pathTemplate = "PATH_TEMPLATE";
        result = "// 当前文件为手动导出文件.请勿修改.在预制体编辑界面点击右键导出即可.\n window.JMC.UIEnum = {\n" + enumTemplate + "\n}\nwindow.JMC.UIPath = {\n" + pathTemplate + "\n}";

        let enumStr = "";
        for (let index = 0; index < allPrefabInfos.length; index++) {
            enumStr = enumStr + "\t\t" + allPrefabInfos[index].name + ":" + index + (index == allPrefabInfos.length - 1 ? "" : ",")  + "\n";
        }

        let pathStr = "";
        for (let index = 0; index < allPrefabInfos.length; index++) {
            let endStr = index == allPrefabInfos.length - 1 ? "" : ",";
            pathStr = pathStr + "\t\t[window.JMC.UIEnum." + allPrefabInfos[index].name + "] : \"" + allPrefabInfos[index].path.replace("\\", "/") + "\"" + endStr + "\n";
        }

        result = result.replace(enumTemplate, enumStr);
        result = result.replace(pathTemplate, pathStr);
        

        let rootPath = Editor.url('db://assets/script/app/view/UIInfo.js', 'utf8')
        fs.writeFileSync(rootPath, result)

        //保存后刷新资源
        Editor.assetdb.refresh('db://assets/script/app/view/UIInfo.js', function (err, results) {
        });
    },
};