/**
 * 字符串工具类
 * @author 袁浩
 *
 */
export class StringUtils {
    public constructor() {
    }
    /**
     * 类似C#中的格式化字符串函数
     * 例：format("Hello {0}",world)
     * @param str {string} 要格式化的字符串
     * @param args {Array<any>} 参数列表
     * @returns {string} 格式化之后的字符串
     */
    public static format(str: string, ...args: Array<any>): string {
        var result: string = str;
        for (var i: number = 0; i < args.length; i++) {
            var key = `{${i}}`;
            var value = String(args[i]);
            while (result.indexOf(key) != -1) {
                result = result.replace(key, value);
            }
        }
        return result;
    }
    /**
     * 判断是否是空字符串，null、undefined和""都会返回true
     * @returns {boolean} 是否是空字符串
     */
    public static isEmpty(value: string): boolean {
        return value == null || value == undefined || value.length == 0;
    }
    /**
     * 去左右两端空格
     */
    public static trim(str): string {
        return str.replace(/(^\s*)|(\s*$)/g, "");
    }
    public static formatStar(str: string, beginLength = 2, endLength = 2) {
        var temp = str.split("");
        var starLength = str.length - beginLength - endLength;
        var star = '';
        for (let i = 0; i < starLength; i++) {
            star += '*';
        }
        temp.splice(beginLength, starLength, star);
        return temp.join("");
    }
    /**
     * 颜色配置
     */
    public static colorOption: { [key: string]: string } = {
        /** 红色1 */
        red1: '#be2c1d',
        /** 棕色1 */
        bro1: '#4E301B',
        /** 白色 */
        white: '#FFFFFF',
        /** 白色 */
        green: '#4AFF32',
    }
    public static getRichText(str: string, opt?: any) {
        opt = opt || this.colorOption;
        var newStr: string = str;
        var i: number = 0;
        var begin: number;
        var end: number;
        var sub: string;
        var searchValue: string;
        var replaceValue: string;
        var color_key: string;
        // 解析颜色
        while (i < str.length) {
            begin = str.indexOf("[", i);
            end = str.indexOf("]", begin);
            if (begin != -1 && end != -1) {//把[redXXX]转成富文本
                searchValue = str.slice(begin, end + 1);
                // 颜色内容
                color_key = str.slice(begin + 1, begin + str.indexOf("="));
                let color_str = opt[color_key]
                if (color_str) {
                    sub = str.slice(begin + color_key.length + 2, end);
                    replaceValue = '<color=' + color_str + '>' + sub + '</color>';
                    newStr = newStr.replace(searchValue, replaceValue);
                }
                i = end;
            }
            else {
                break;
            }
        }
        let size_index: number = 0;
        let size_begin: number = 0;
        let size_end: number = 0;
        let size_searchValue: string;
        // let size_sub: string
        // 解析尺寸{40=100%},100%是40尺寸.例子2：[bro对目标造成][red{40=104%}][bro攻击伤害]
        while (size_index < newStr.length) {
            size_begin = newStr.indexOf("{", size_index);
            size_end = newStr.indexOf("}", size_begin);
            if (size_begin != -1 && size_end != -1) {
                // 尺寸内容
                size_searchValue = newStr.slice(size_begin, size_end + 1);
                let size_value = newStr.slice(size_begin + 1, size_begin + 3);
                let size_sub = size_searchValue.slice(4, size_searchValue.length - 1);
                if (size_sub) {
                    let new_value = '<size = ' + size_value + '>' + size_sub + '</color>';
                    newStr = newStr.replace(size_searchValue, new_value);
                }
                size_index = size_end;
            }
            else {
                break;
            }
        }
        return newStr;
    }
}