/**
 * Vue3 Cookies v1.0.0
 *
 * Forked from
 * https://github.com/cmp-cc/vue-cookies
 * And changed format to support Vue.js 3
 *
 */

import type {App} from "vue";
import {CookiesConfig, VueCookies} from "../types";

const defaultConfig: CookiesConfig = {
  expireTimes: '1d',
  path: '; path=/',
  domain: '',
  secure: false,
  sameSite: '; SameSite=Lax'
};

class VueCookiesManager implements VueCookies {
  private current_default_config: CookiesConfig;

  constructor() {
    this.current_default_config = defaultConfig;
  }

  config(config: CookiesConfig): void {
    for (const propertyName in this.current_default_config) {
      this.current_default_config[propertyName] = config[propertyName] ? config[propertyName] : defaultConfig[propertyName];
    }
  }

  get(keyName: string): any {
    let value = decodeURIComponent(document.cookie.replace(new RegExp('(?:(?:^|.*;)\\s*' + encodeURIComponent(keyName).replace(/[\-\.\+\*]/g, '\\$&') + '\\s*\\=\\s*([^;]*).*$)|^.*$'), '$1')) || null;

    if (value && value.substring(0, 1) === '{' && value.substring(value.length - 1, value.length) === '}') {
      try {
        value = JSON.parse(value);
      } catch (e) {
        return value;
      }
    }
    return value;
  }

  set(keyName: string, value: any, expireTimes?: string | number | Date, path?: string, domain?: string, secure?: boolean, sameSite?: string): this {
    if (!keyName) {
      throw new Error('Cookie name is not found in the first argument.');
    } else if (/^(?:expires|max-age|path|domain|secure|SameSite)$/i.test(keyName)) {
      throw new Error('Cookie name illegality. Cannot be set to ["expires","max-age","path","domain","secure","SameSite"]\t current key name: ' + keyName);
    }
    // support json object
    if (value && value.constructor === Object) {
      value = JSON.stringify(value);
    }
    let _expires = '';
    if (expireTimes == undefined) {
      expireTimes = this.current_default_config.expireTimes ? this.current_default_config.expireTimes : '';
    }
    if (expireTimes && expireTimes != 0) {
      switch (expireTimes.constructor) {
        case Number:
          if (expireTimes === Infinity || expireTimes === -1) _expires = '; expires=Fri, 31 Dec 9999 23:59:59 GMT';
          else _expires = '; max-age=' + expireTimes;
          break;
        case String:
          if (/^(?:\d+(y|m|d|h|min|s))$/i.test(<string>expireTimes)) {
            // get capture number group
            let _expireTime = (<string>expireTimes).replace(/^(\d+)(?:y|m|d|h|min|s)$/i, '$1');
            // get capture type group , to lower case
            switch ((<string>expireTimes).replace(/^(?:\d+)(y|m|d|h|min|s)$/i, '$1').toLowerCase()) {
              // Frequency sorting
              case 'm':
                _expires = '; max-age=' + +_expireTime * 2592000;
                break; // 60 * 60 * 24 * 30
              case 'd':
                _expires = '; max-age=' + +_expireTime * 86400;
                break; // 60 * 60 * 24
              case 'h':
                _expires = '; max-age=' + +_expireTime * 3600;
                break; // 60 * 60
              case 'min':
                _expires = '; max-age=' + +_expireTime * 60;
                break; // 60
              case 's':
                _expires = '; max-age=' + _expireTime;
                break;
              case 'y':
                _expires = '; max-age=' + +_expireTime * 31104000;
                break; // 60 * 60 * 24 * 30 * 12
              default:
                new Error('unknown exception of "set operation"');
            }
          } else {
            _expires = '; expires=' + expireTimes;
          }
          break;
        case Date:
          _expires = '; expires=' + (<Date>expireTimes).toUTCString();
          break;
      }
    }
    document.cookie =
      encodeURIComponent(keyName) + '=' + encodeURIComponent(value) +
      _expires +
      (domain ? '; domain=' + domain : (this.current_default_config.domain ? this.current_default_config.domain : '')) +
      (path ? '; path=' + path : (this.current_default_config.path ? this.current_default_config.path : '; path=/')) +
      (secure == undefined ? (this.current_default_config.secure ? '; Secure' : '') : secure ? '; Secure' : '') +
      (sameSite == undefined ? (this.current_default_config.sameSite ? '; SameSute=' + this.current_default_config.sameSite : '') : (sameSite ? '; SameSite=' + sameSite : ''));
    return this;
  }

  remove(keyName: string, path?: string, domain?: string): boolean {
    if (!keyName || !this.isKey(keyName)) {
      return false;
    }
    document.cookie = encodeURIComponent(keyName) +
      '=; expires=Thu, 01 Jan 1970 00:00:00 GMT' +
      (domain ? '; domain=' + domain : (this.current_default_config.domain ? this.current_default_config.domain : '')) +
      (path ? '; path=' + path : (this.current_default_config.path ? this.current_default_config.path : '; path=/')) +
      '; SameSite=Lax';
    return true;
  }

  isKey(keyName: string): boolean {
    return (new RegExp('(?:^|;\\s*)' + encodeURIComponent(keyName).replace(/[\-\.\+\*]/g, '\\$&') + '\\s*\\=')).test(document.cookie);
  }

  keys(): string[] {
    if (!document.cookie) return [];
    let _keys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, '').split(/\s*(?:\=[^;]*)?;\s*/);
    for (let _index = 0; _index < _keys.length; _index++) {
      _keys[_index] = decodeURIComponent(_keys[_index]);
    }
    return _keys;
  }
}

export default {
  install: function (app: App, options?: CookiesConfig): void {
    app.config.globalProperties.$cookies = new VueCookiesManager();
    if (options) {
      app.config.globalProperties.$cookies.config(options);
    }
  }
}