"use strict";
var XLSX = require("xlsx");
var fs = require("fs");
var path = require("path");

var options = process.argv;
if (options.length < 4) {
	console.log("需要2个参数(src out)");
	process.exit();
}

var srcDir = options[2];
var outDir = options[3];

function mkdirs(dirname, callback) {
	if (fs.existsSync(dirname)) {
		if (callback != undefined) {
			callback();
		}
	} else {
		mkdirs(path.dirname(dirname), function () {
			fs.mkdirSync(dirname);
			if (callback != undefined) {
				callback();
			}
		});
	}
}

function insertStr(soure, start, newStr) {
	return soure.slice(0, start) + newStr + soure.slice(start);
}

function encodeQuote(str) {
	if (str[0] != '"' || str[str.length - 1] != '"') {
		return str;
	}
	var i = 1;
	var f;
	while ((f = str.indexOf('"', i)) != -1 && f < str.length - 1) {
		str = insertStr(str, f, "\\");
		//console.log(f, str);
		i = f + 2;
	}
	return str;
}

var countExport = 0;
function handleFile(fileDir) {
	var content = fs.readFileSync(fileDir, "utf8");
	var contents = content.split("\n");

	var exportHead = contents[0];
	var exportTail = contents[contents.length - 1];

	var i = 1;

	var numKeys = 0;
	while (true) {
		var re = contents[i + numKeys].match(/\[\d+\] *= *\{/g);
		if (re == null) {
			break;
		}
		numKeys++;
		//console.log(re);
	}
	console.log("keys", numKeys);
	var exportType = (numKeys > 0 ? "base" : "tiny");

	var fileName = fileDir.replace(/^.*[\\\/]/, "");
	var exportFile = outDir + "/" + fileName + ".xlsx";
	mkdirs(path.dirname(exportFile));
	var data = [];
	data[0] = ["导出类型", exportType, "", "导出文件头", exportHead];
	data[1] = ["导出文件", fileDir, "", "导出文件尾", exportTail];
	data[2] = ["key数量", numKeys];
	data[3] = [];
	if (numKeys > 0) {
		var numAttr = 0;
		while (true) {
			var re = contents[i + numKeys + numAttr].match(/	\}\,/g);
			//console.log(re);
			if (re != null) {
				break;
			}
			numAttr++;
		}
		console.log("attr", numAttr);

		data[4] = ["配置备注"];
		data[5] = ["导出参数"];
		data[6] = ["备注"];

		for (var ai = 0; ai < numAttr; ai++) {
			data[5][1 + ai] = "sc";
			var re = contents[i + numKeys + ai].match(/\t(\w+) *=/);
			if (re != null) {
				//console.log(re[1]);
				var attrName = re[1];
				data[6][1 + ai] = attrName;
			}
		}

		for (
			var row = 7;
			i + numKeys + numAttr < contents.length;
			i += 2 * numKeys + numAttr
		) {
			//console.log(i);
			data[row] = [];
			for (var ai = 0; ai < numAttr; ai++) {
				var re = contents[i + numKeys + ai].match(/ *= *([^\n]+),/);
				if (re != null) {
					//console.log(re[1]);
					data[row][1 + ai] = re[1];
				}
			}
			row++;
		}
	} else {
		data[4] = ["配置备注", "导出参数", "字段名", "值", "备注"];
		for (var row = 5; row - 4 < contents.length - 1; row++) {
			var re = contents[row - 4].match(/\t(\w+) *= *([^\n]+),/);
			if (re != null) {
				//console.log(re);
				data[row] = ["", "sc", re[1], re[2]];
			}
		}
	}

	var ws = XLSX.utils.aoa_to_sheet(data);
	var wb = XLSX.utils.book_new();
	XLSX.utils.book_append_sheet(wb, ws, fileName);

	console.log(fileDir, "->", exportFile);
	XLSX.writeFile(wb, exportFile);
	countExport++;
}

function handleDir(filePath) {
	//根据文件路径读取文件，返回文件列表
	var files = fs.readdirSync(filePath);
	//遍历读取到的文件列表
	files.forEach(function (filename) {
		//获取当前文件的绝对路径
		var filedir = path.join(filePath, filename);
		//根据文件路径获取文件信息，返回一个fs.Stats对象
		var stats = fs.statSync(filedir);
		var isFile = stats.isFile(); //是文件
		var isDir = stats.isDirectory(); //是文件夹
		if (isFile) {
			//console.log(filedir);
			handleFile(filedir);
		}
		if (isDir) {
			handleDir(filedir); //递归，如果是文件夹，就继续遍历该文件夹下面的文件
		}
	});
}

function removeDir(p) {
	if (!fs.existsSync(p)) {
		return;
	}
	let statObj = fs.statSync(p); // fs.statSync同步读取文件状态，判断是文件目录还是文件。
	if (statObj.isDirectory()) { //如果是目录
		let dirs = fs.readdirSync(p); //fs.readdirSync()同步的读取目标下的文件 返回一个不包括 '.' 和 '..' 的文件名的数组['b','a']
		dirs = dirs.map((dir) => path.join(p, dir)); //拼上完整的路径
		for (let i = 0; i < dirs.length; i++) {
			// 深度 先将儿子移除掉 再删除掉自己
			removeDir(dirs[i]);
		}
		fs.rmdirSync(p); //删除目录
	} else {
		fs.unlinkSync(p); //删除文件
	}
}

removeDir(outDir);
handleDir(srcDir);