/**
 * MIT License
 *
 * Copyright (C) 2024 Huawei Device Co., Ltd.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import Logger from './Logger';
import {BusinessError} from '@ohos.base';
import calendarManager from '@ohos.calendarManager';
import bundleManager from '@ohos.bundle.bundleManager';
import abilityAccessCtrl, { PermissionRequestResult, Permissions } from '@ohos.abilityAccessCtrl';

import { dataConversion, getCalendarType} from "./CalendarUtil"
import { CalendarEventReadable, CalendarEventWritable, EventDetails, Options} from './EventType'
import { TurboModule, TurboModuleContext } from '@rnoh/react-native-openharmony/ts';
import {AuthorizationStatus, Calendar, CalendarOptionsSourceLibrary } from './CalendarType';

import { TM } from '@rnoh/react-native-openharmony/generated/ts';

export const CALENDAR_EVENTS: string = "CalendarEventsView"
export let calendarMgr: calendarManager.CalendarManager | null = null;
let authorized: string = "authorized";
export class CalendarEventTurboModule extends TurboModule implements TM.RNCalendarEvents.Spec{
  constructor(ctx: TurboModuleContext) {
    super(ctx);
  }

  async checkAccessToken(permission: Permissions): Promise<abilityAccessCtrl.GrantStatus> {
    let grantStatus: abilityAccessCtrl.GrantStatus;
    let atManager = abilityAccessCtrl.createAtManager();
    // 获取应用程序的accessTokenID
    let tokenId: number;
    try {
      let bundleInfo: bundleManager.BundleInfo =
        await bundleManager.getBundleInfoForSelf(bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_APPLICATION);
      let appInfo: bundleManager.ApplicationInfo = bundleInfo.appInfo;
      tokenId = appInfo.accessTokenId;
    } catch (err) {
      Logger.error(`getBundleInfoForSelf failed, code is ${err.code}, message is ${err.message}`);
    }
    try {
      grantStatus = await atManager.checkAccessToken(tokenId, permission);
    } catch (err) {
      Logger.error(`checkAccessToken failed, code is ${err.code}, message is ${err.message}`);
    }
    return grantStatus;
  }

  async checkPermissions(): Promise<AuthorizationStatus> {
    const permissions: Array<Permissions> = ['ohos.permission.READ_CALENDAR'];
    let grantStatus: abilityAccessCtrl.GrantStatus = await this.checkAccessToken(permissions[0]);
    if (grantStatus === abilityAccessCtrl.GrantStatus.PERMISSION_GRANTED) {
      Logger.info(`checkPermissions authorized`);
      return new Promise((resolve, reject) => {
        resolve("authorized");
      });
    }
    if (grantStatus === abilityAccessCtrl.GrantStatus.PERMISSION_DENIED) {
      Logger.info(`checkPermissions denied`);
      return new Promise((resolve, reject) => {
        resolve("denied");
      });
    }
  }

  //requestPermiss
  async requestPermissions(): Promise<AuthorizationStatus> {
    let atManager = abilityAccessCtrl.createAtManager();
    let permissionRequestResult : PermissionRequestResult = null;
    const permissions: Permissions[] = ['ohos.permission.READ_CALENDAR', 'ohos.permission.WRITE_CALENDAR'];
    await atManager.requestPermissionsFromUser(this.ctx.uiAbilityContext, permissions).then(
      (result: PermissionRequestResult) => {
        permissionRequestResult = result;
      }).catch((error: BusinessError) => {
      Logger.error(`requestPermissionsAsync failed, code is ${error.code}, message is ${error.message}`);
    })
    Logger.info(`requestPermissions result =` + permissionRequestResult.permissions);
    return await this.checkPermissions()
  }

  //findCalendars
  async findCalendars(): Promise<Calendar[]> {
    let checkPermission: string = await this.checkPermissions();
    if (checkPermission == authorized) {
      let calendar : calendarManager.Calendar[] | undefined = undefined;
      let calendarResult : Calendar[] = []
      calendarMgr = calendarManager.getCalendarManager(this.ctx.uiAbilityContext);
      await calendarMgr.getAllCalendars().then(
        async (calendarData:calendarManager.Calendar[]) => {calendar = calendarData}
      );
      if (calendar && calendar.length > 0) {
        calendar.forEach(item => {
          calendarResult.push(new Calendar(item.id.toString(), item.getAccount().name, item.getAccount().type))
        })
      }
      return new Promise((resolve, reject) => {
        resolve(calendarResult);
      });
    } else {
      return new Promise((resolve, reject) => {
        resolve([]);
      });
    }
  }

  //saveCalendar
  async setConfig(calendar: calendarManager.Calendar, calendarOptions: CalendarOptionsSourceLibrary){
    const config: calendarManager.CalendarConfig = {
      color: calendarOptions.color
    };
    calendar.setConfig(config, (err: BusinessError) => {
      if (err) {
        Logger.error(`Failed to set config. Code: ${err.code}, message: ${err.message}`);
      } else {
        Logger.info(`Succeeded in setting config, config -> ${JSON.stringify(config)}`);
      }
    });
  }

  async saveCalendar(calendarOptions: CalendarOptionsSourceLibrary): Promise<boolean> {
    const result: boolean = await new Promise(async (resolve: Function) => {
      let checkPermission: string = await this.checkPermissions();
      if (checkPermission == authorized) {
        if (calendarOptions.title != null && calendarOptions.title.trim().length > 0) {
          const calendarAccount: calendarManager.CalendarAccount = {
            name: calendarOptions.title,
            type: calendarManager.CalendarType.LOCAL,
          };
          calendarMgr = calendarManager.getCalendarManager(this.ctx.uiAbilityContext);
          await calendarMgr.createCalendar(calendarAccount).then(async (data: calendarManager.Calendar) => {
            if (calendarOptions.color != null && calendarOptions.color.length > 0) {
              if (data){
                await this.setConfig(data, calendarOptions)
                resolve(true)
              }
            }
          }).catch((error : BusinessError) => {
            Logger.error(`saveCalendarAsync Failed to add event, err -> ${JSON.stringify(error)} `);
            resolve(false)
          });
        } else {
          Logger.error("new calendars require a `source` object with a `name`");
          resolve(false)
        }
      } else {
        resolve(false)
      }
    })
    if (result) {
      return new Promise((resolve) => {
        resolve(true);
      });
    } else {
      return new Promise((resolve) => {
        resolve(false);
      });
    }
  }

  //removeCalendar
  async removeCalendarById(id: string): Promise<Boolean> {
    let removeCalendarBool : boolean = false;
    let calendar : calendarManager.Calendar | undefined = undefined;
    //根据id，查询calendar
    let findCalendarById : Calendar | null;
    (await this.findCalendars()).forEach(item => {
      if (item.id.toString() == id && item.title != "phone") {
        findCalendarById = item
      }
    })
    if (findCalendarById) {
      const calendarAccount: calendarManager.CalendarAccount = {
        name: findCalendarById.title,
        type: getCalendarType(findCalendarById.type)
      };
      calendarMgr = calendarManager.getCalendarManager(this.ctx.uiAbilityContext);
      await calendarMgr?.getCalendar(calendarAccount).then(async (calendarData:calendarManager.Calendar) => {
        calendar = calendarData;
        await calendarMgr?.deleteCalendar(calendarData).then(() => {
          removeCalendarBool = true
        }).catch((err: BusinessError) => {
          Logger.error(`removeCalendarAsync Failed to remove calendar, err -> ${JSON.stringify(err)}`);
        });
      })
      return new Promise((resolve) => {
        resolve(removeCalendarBool);
      });
    } else {
      return new Promise((resolve) => {
        Logger.info(`removeCalendarAsync false, calendar is not exist`);
        resolve(false);
      });
    }
  }

  async removeCalendar(id: string): Promise<string> {
    let checkPermission: string = await this.checkPermissions();
    if (checkPermission == authorized) {
      let saveCalendarBool: Boolean = await this.removeCalendarById(id);
      if (saveCalendarBool) {
        return new Promise((resolve) => {
          resolve("success");
        });
      }
    }
    return new Promise((resolve, reject) => {
      resolve("fail");
    });
  }

  //findEventById
  async findEventById(id: string): Promise<CalendarEventReadable | null> {
    let calendar : calendarManager.Calendar | undefined = undefined;
    let calendarEventReadable: CalendarEventReadable;
    let checkPermission: string = await this.checkPermissions();
    if (checkPermission == authorized) {
      calendarMgr = calendarManager.getCalendarManager(this.ctx.uiAbilityContext);
      await calendarMgr?.getCalendar().then(async (dataCalendar:calendarManager.Calendar) => {
        calendar = dataCalendar;
        const filter = calendarManager.EventFilter.filterById([Number.parseFloat(id)]);
        await calendar.getEvents(filter).then((dataEvent: calendarManager.Event[]) => {
          if (dataEvent && dataEvent.length >= 1) {
            dataEvent.forEach((item: calendarManager.Event) => {
              calendarEventReadable = new CalendarEventReadable()
              calendarEventReadable.id = item.id?.toString()
              calendarEventReadable.title = item.title
              calendarEventReadable.startDate = new Date(item.startTime).toUTCString();
              calendarEventReadable.endDate = new Date(item.endTime).toUTCString();
              calendarEventReadable.allDay = item.isAllDay
              if (item.recurrenceRule && item.recurrenceRule.recurrenceFrequency) {
                switch (item.recurrenceRule.recurrenceFrequency.valueOf()){
                  case 0 :
                    calendarEventReadable.recurrence = "yearly";
                    break;
                  case 1:
                    calendarEventReadable.recurrence = "monthly";
                    break;
                  case 2 :
                    calendarEventReadable.recurrence = "weekly";
                    break;
                  case 3:
                    calendarEventReadable.recurrence = "daily";
                    break;
                  default :
                    calendarEventReadable.recurrence = "daily";
                }
              }
              calendarEventReadable.location = item.location?.location
              calendarEventReadable.description = item.description
              calendarEventReadable.timeZone = item.timeZone
            })
          }
        }).catch((err: BusinessError) => {
          Logger.error(`Failed to get events, err -> ${JSON.stringify(err)}`);
        });
      });
    }
    if (calendarEventReadable) {
      return new Promise((resolve, reject) => {
        resolve(calendarEventReadable);
      });
    } else {
      return new Promise((resolve, reject) => {
        resolve(null);
      });
    }
  }

  //fetchAllEvents
  async fetchAllEvents(startDate: string, endDate: string, calendarIds?: string[]): Promise<CalendarEventReadable[]> {
    let startDateNumber: number = new Date(startDate).getTime();
    let endDateNumber: number = new Date(endDate).getTime();
    let checkPermission: string = await this.checkPermissions();
    let calendarEventReadableArray: CalendarEventReadable[] = [];
    if (checkPermission == authorized) {
      let calendar : calendarManager.Calendar | undefined = undefined;
      calendarMgr = calendarManager.getCalendarManager(this.ctx.uiAbilityContext);
      await calendarMgr?.getCalendar().then(async (dataCalendar: calendarManager.Calendar) => {
        calendar = dataCalendar;
        const eventFilter = calendarManager.EventFilter;
        let filter = null;
        if (calendarIds && calendarIds.length > 0) {
          filter = eventFilter.filterById(calendarIds.map(Number));
        } else {
          filter = eventFilter.filterByTime(startDateNumber, endDateNumber)
        }
        await calendar.getEvents(filter).then((dataEvent: calendarManager.Event[]) => {
          Logger.info(`fetchAllEventsAsync Succeeded to get events, data -> ${JSON.stringify(dataEvent)}`);
          if (dataEvent.length > 0) {
            dataEvent.forEach((item: calendarManager.Event) => {
              let calendarEventReadable: CalendarEventReadable = new CalendarEventReadable()
              calendarEventReadable.id = item.id?.toString()
              calendarEventReadable.title = item.title
              calendarEventReadable.startDate = new Date(item.startTime).toUTCString();
              calendarEventReadable.endDate = new Date(item.endTime).toUTCString();
              calendarEventReadable.allDay = item.isAllDay
              if (item.recurrenceRule && item.recurrenceRule.recurrenceFrequency) {
                switch (item.recurrenceRule.recurrenceFrequency.valueOf()){
                  case 0 :
                    calendarEventReadable.recurrence = "yearly";
                    break;
                  case 1:
                    calendarEventReadable.recurrence = "monthly";
                    break;
                  case 2 :
                    calendarEventReadable.recurrence = "weekly";
                    break;
                  case 3:
                    calendarEventReadable.recurrence = "daily";
                    break;
                  default :
                    calendarEventReadable.recurrence = "daily";
                }
              }
              calendarEventReadable.location = item.location?.location
              calendarEventReadable.description = item.description
              calendarEventReadable.timeZone = item.timeZone
              calendarEventReadableArray.push(calendarEventReadable)
            })
          }
        }).catch((err: BusinessError) => {
          Logger.error(`fetchAllEventsAsync Failed to get events, err -> ${JSON.stringify(err)}`);
        });
      });
    }
    return new Promise((resolve, reject) => {
      resolve(calendarEventReadableArray);
    });
  }

  //saveEvent
  async saveEvent(title: string, details: CalendarEventWritable, options?: Options): Promise<String> {
    const result: boolean = await new Promise(async (resolve: Function) => {
      let checkPermission: string = await this.checkPermissions();
      if (checkPermission == authorized) {
        let calendar : calendarManager.Calendar | undefined = undefined;
        //handle data
        let eventDetails:EventDetails = new EventDetails();
        const events: calendarManager.Event = dataConversion(title, details, eventDetails, options);
        calendarMgr = calendarManager.getCalendarManager(this.ctx.uiAbilityContext);
        await calendarMgr?.getCalendar().then(
          async (calendarData:calendarManager.Calendar) => {
            Logger.info(`saveEventAsync Succeeded to get calendar, data -> ${JSON.stringify(calendarData)}`);
            calendar = calendarData;
            await calendar?.addEvent(events).then((data: number) => {
              resolve(true);
            }).catch((err: BusinessError) => {
              resolve(false)
              Logger.error(`saveCalendarAsync Failed to add event, err -> ${JSON.stringify(err)} `);
            });
          })
      } else {
        resolve(false);
      }
    })
    if (result) {
      return new Promise((resolve, reject) => {
        resolve("success");
      });
    } else {
      return new Promise((resolve, reject) => {
        resolve("fail");
      });
    }
  }

  //removeEvent
  async removeEvent(id: string): Promise<string> {
    const result: boolean = await new Promise(async (resolve: Function) => {
      let checkPermission: string = await this.checkPermissions();
      if (checkPermission == authorized) {
        let calendar : calendarManager.Calendar | undefined = undefined;
        calendarMgr = calendarManager.getCalendarManager(this.ctx.uiAbilityContext);
        calendarMgr?.getCalendar()
          .then(
            (calendarData:calendarManager.Calendar) => {
              calendar = calendarData;
              calendar?.deleteEvent(Number.parseFloat(id), (err: BusinessError) => {
                if (err) {
                  resolve(false)
                } else {
                  resolve(true)
                }
              });
            })
      } else{
          resolve(false);
      }
    });
    if (result) {
      return new Promise((resolve) => {
        resolve("success");
      });
    } else {
      return new Promise((resolve, reject) => {
        resolve("fail");
      });
    }

  }
}