import { SetStorage, SetStorageOptions, SetStorageSuccess } from "../interface.uts"
import { SetStorageSync } from "../interface.uts"
import { GetStorage, GetStorageOptions, GetStorageSuccess } from "../interface.uts"
import { GetStorageSync } from "../interface.uts"
import { GetStorageInfoSuccess, GetStorageInfo, GetStorageInfoOptions } from "../interface.uts"
import { GetStorageInfoSync } from "../interface.uts"

import { RemoveStorage, RemoveStorageOptions, RemoveStorageSuccess } from "../interface.uts"
import { RemoveStorageSync } from "../interface.uts"
import { ClearStorage, ClearStorageSuccess, ClearStorageOptions } from "../interface.uts"
import { ClearStorageSync } from "../interface.uts"

// @ts-expect-error
import DCStorage from "io.dcloud.common.util.db.DCStorage";
// @ts-expect-error
import UTSAndroid from 'io.dcloud.uts.UTSAndroid';
// @ts-expect-error
import List from 'java.util.List';
import {
  uni_getStorageAsync,
  uni_getStorageSync,
  uni_setStorageAsync,
  uni_setStorageSync
} from "../uniStorageTool.uts"


/**
 * 设置储存项
 */
export const setStorage: SetStorage = function (options: SetStorageOptions) {

  setTimeout(function () {

    let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());
    if (dcStorage == null) {
	  let ret = new UniError("uni-setStorage", -1, "storage not found.") 
      options.fail?.(ret)
      options.complete?.(ret)
      return
    }
    /**
     * 通过公共函数执行设置逻辑
     */
    uni_setStorageAsync(options, (itemKey: string, itemData: string) => {
      dcStorage.performSetItem(UTSAndroid.getUniActivity(), UTSAndroid.getAppId(), itemKey, itemData);
    }, (itemKey: string) => {
      dcStorage.performRemoveItem(UTSAndroid.getUniActivity(), UTSAndroid.getAppId(), itemKey);
    })


  }, 0)
}

/**
 * 同步设置储存项
 */
export const setStorageSync: SetStorageSync = function (key: string, data: any) {

  let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());

  if (dcStorage == null) {
    // 异常了
    return;
  }
  uni_setStorageSync(key, data, (itemKey: string, itemValue: string) => {
    let dataString = itemValue
    dcStorage.performSetItem(UTSAndroid.getUniActivity(), UTSAndroid.getAppId(), itemKey, dataString);
  }, (itemKey: string) => {
    dcStorage.performRemoveItem(UTSAndroid.getUniActivity(), UTSAndroid.getAppId(), itemKey);
  })


}


/**
 * 获取储存项
 */
function includeKey(key: string): boolean {

  let info = DCStorage.getDCStorage(UTSAndroid.getUniActivity()!).performGetAllKeys(UTSAndroid.getAppId())
  if (info.v != null && info.code == DCStorage.SUCCESS) {
    //&& info.v instanceof java.util.List
    // @ts-expect-error
    let keys = UTSArray.fromNative((info.v as ArrayList<String>));
    if (keys.indexOf(key) > -1) {
      return true
    }
  }
  return false;
}

export const getStorage: GetStorage = function getStorage(options: GetStorageOptions) {


  let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());

  if (dcStorage == null) {
	let ret = new UniError("uni-setStorage", -1, "storage not found.") 
    options.fail?.(ret)
    options.complete?.(ret)
    return
  }

  setTimeout(function () {

    uni_getStorageAsync(options, function (itemKey: string): string | null {

      let info = dcStorage.performGetItem(UTSAndroid.getAppId(), itemKey);
      if (info != null && info.code == DCStorage.SUCCESS && info.v != null) {
        // 获取成功
        return info.v as string
      }

      return null
    }, function (key: string): boolean {
      let list: String[] = []

      let info = dcStorage.performGetAllKeys(UTSAndroid.getAppId())
      if (info.code == DCStorage.SUCCESS && info.v != null) {

        /**
         * 临时语法支持，foreach 组织数组格式
         */
        let arrayKeys: String[] = []
        ;(info.v as List<string>).forEach((perKey: string) => {
          arrayKeys.push(perKey)
        });

        list = arrayKeys
      }

      if (list != null) {
        let item = list!.find((value): boolean => {
          if (typeof value == "string") {
            return (value as string) == key;
          }
          return false;
        })
        return (item != null);
      }
      return false;
    })


  }, 0)
}


/**
 * 同步获取储存项
 */
export const getStorageSync: GetStorageSync = function (key: string): any | null {


  return uni_getStorageSync(key, function (itemKey: string): string | null {
    let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());

    if (dcStorage == null) {
      return "";
    }

    let info = dcStorage.performGetItem(UTSAndroid.getAppId(), itemKey);
    if (info != null && info.code == DCStorage.SUCCESS && info.v != null) {
      // 获取成功
      return info.v as string
    }
    return ""
  });


}

/**
 * 获取储存信息
 */
export const getStorageInfo: GetStorageInfo = function (options: GetStorageInfoOptions) {

  setTimeout(function () {


    let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());

    if (dcStorage == null) {
	  let ret = new UniError("uni-setStorage", -1, "storage not found.") 
      options.fail?.(ret)
      options.complete?.(ret)
    }

    let ret: GetStorageInfoSuccess = {
      keys: [],
      currentSize: 0,
      limitSize: 10240
    }

    let info = dcStorage.performGetAllKeys(UTSAndroid.getAppId());
    if (info.code == DCStorage.SUCCESS && info.v != null) {

      let arrayKeys: string[] = []

        /**
         * 临时语法支持，foreach 组织数组格式
         */
      ;(info.v as List<string>).forEach((perKey: string) => {
        arrayKeys.push(perKey)
      });

      /**
       * 储存的最大值：SQLLite数据库当前允许的最大值
       * 储存的已用值：SQLLite数据文件当前的大小
       */
      try {
        ret.keys = arrayKeys

        let limitNum = dcStorage.getDBMaxLength(UTSAndroid.getAppId()).toDouble()
        ret.limitSize = limitNum / 1024

        let currentNum = dcStorage.getDBCurrentLength(UTSAndroid.getAppId()).toDouble()
        ret.currentSize = currentNum / 1024
      } catch (e) {
        //TODO handle the exception
      }

      // let arrayRet = info.v as Array
      options.success?.(ret)
    }
  }, 0)

}


/**
 * 同步获取储存信息
 */
export const getStorageInfoSync: GetStorageInfoSync = function (): GetStorageInfoSuccess {

  // android SQL 单表最大限制为
  let ret: GetStorageInfoSuccess = {
    keys: [],
    currentSize: 0,
    limitSize: 10240,
  }

  let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());
  if (dcStorage == null) {
    return ret
  }


  let info = dcStorage.performGetAllKeys(UTSAndroid.getAppId());
  if (info.code == DCStorage.SUCCESS && info.v != null) {

    /**
     * 临时语法支持，foreach 组织数组格式
     */
    let arrayKeys: string[] = []
    ;(info.v as List<string>).forEach((perKey: string) => {
      arrayKeys.push(perKey)
    });

    ret.keys = arrayKeys
  }

  /**
   * 储存的最大值：SQLLite数据库当前允许的最大值
   * 储存的已用值：SQLLite数据文件当前的大小
   */
  try {
    let limitNum = dcStorage.getDBMaxLength(UTSAndroid.getAppId()).toDouble()
    ret.limitSize = limitNum / 1024

    let currentNum = dcStorage.getDBCurrentLength(UTSAndroid.getAppId()).toDouble()
    ret.currentSize = currentNum / 1024
  } catch (e) {
    //TODO handle the exception
  }


  return ret

}

/**
 * 移除指定储存项
 */
export const removeStorage: RemoveStorage = function (options: RemoveStorageOptions) {

  setTimeout(function () {
    let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());
    if (dcStorage == null) {
	  let ret = new UniError("uni-removeStorage", -1, "storage not found.") 
      options.fail?.(ret)
      options.complete?.(ret)
      return;
    }
    dcStorage.performRemoveItem(UTSAndroid.getUniActivity(), UTSAndroid.getAppId(), options.key);
    let ret: RemoveStorageSuccess = {}
    options.success?.(ret)
    options.complete?.(ret)

  }, 0)

}

/**
 * 同步移除指定储存项
 */
export const removeStorageSync: RemoveStorageSync = function (key: string) {

  let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());
  if (dcStorage == null) {
    return;
  }
  dcStorage.performRemoveItem(UTSAndroid.getUniActivity(), UTSAndroid.getAppId(), key);

}

/**
 * 清空储存选项
 */
export const clearStorage: ClearStorage = function (option: ClearStorageOptions | null) {

  setTimeout(function () {
    let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());
    if (dcStorage == null) {
	  let ret = new UniError("uni-clearStorage", -1, "error:storage not found.") 
      option?.fail?.(ret)
      option?.complete?.(ret)
      return;
    }
    dcStorage.performClear(UTSAndroid.getUniActivity(), UTSAndroid.getAppId());


    let ret: ClearStorageSuccess = {}
    option?.success?.(ret)
    option?.complete?.(ret)
  }, 0)

}

/**
 * 同步清空储存选项
 */
export const clearStorageSync: ClearStorageSync = function () {


  let dcStorage = DCStorage.getDCStorage(UTSAndroid.getUniActivity());
  if (dcStorage == null) {
    return;
  }
  dcStorage.performClear(UTSAndroid.getUniActivity(), UTSAndroid.getAppId());

}