import {Component, OnInit, ViewChild} from '@angular/core';
import {NavigationLink, NavigationLinkListComponent} from "../../navigation-link-list/navigation-link-list.component";
import {ActivatedRoute, Router} from "@angular/router";
import {
  AdvancedScheduleInfo,
  ScheduleInfo,
  ScheduleService,
  TaskEntityInfo,
  TaskgroupEntityInfo,
  TaskgroupService,
  TaskService
} from "../../../api";
import {TaskDashboardComponent} from "../task-dashboard/task-dashboard.component";
import {MatDialog} from "@angular/material/dialog";
import {TaskEditorComponent} from "../task-editor/task-editor.component";
import {TaskEditorData} from "../task-editor/TaskEditorData";
import * as moment from "moment";
import {ScheduleDashboardComponent} from "../../schedules/schedule-dashboard/schedule-dashboard.component";
import {TaskStatusService} from "../task-status.service";
import {TaskSeriesCreatorComponent} from "../task-series-creator/task-series-creator.component";

@Component({
  selector: 'app-task-detail-overview',
  templateUrl: './task-detail-overview.component.html',
  styleUrls: ['./task-detail-overview.component.css']
})
export class TaskDetailOverviewComponent implements OnInit {

  defaultNavigationLinkPath: NavigationLink[] = [
    {
      linkText: "Dashboard",
      routerLink: ['/']
    },
    {
      linkText: "Taskgroups",
      routerLink: ["/taskgroups"]
    }
  ]
  taskgroups: TaskgroupEntityInfo[] = []
  taskgroup: TaskgroupEntityInfo | undefined
  taskgroupPath: TaskgroupEntityInfo[] = []
  taskgroupID: number = -1;
  @ViewChild('navLinkList') navLinkListComponent: NavigationLinkListComponent | undefined

  task: TaskEntityInfo | undefined
  schedules: ScheduleInfo[] = []
  schedulesLoaded: boolean = false;

  taskStatus: string = "🟢"
  currentProgress: string = "0";
  futureProgress: string = "0";

  subTasks: TaskEntityInfo[] = [];

  constructor(private activatedRoute: ActivatedRoute,
              private taskgroupService: TaskgroupService,
              private taskService: TaskService,
              private dialog: MatDialog,
              private scheduleService: ScheduleService,
              private router: Router,
              private taskStatusService: TaskStatusService) {
  }

  ngOnInit(): void {
    this.activatedRoute.paramMap.subscribe(params => {
      if (params.has('taskgroupID')) {
        this.taskgroupID = Number(params.get('taskgroupID'));
        this.taskgroupService.taskgroupsTaskgroupIDGet(this.taskgroupID).subscribe({
          next: resp => {
            this.taskgroups = resp.children
            this.taskgroupPath = resp.ancestors
            this.taskgroup = resp.taskgroupInfo;
            this.navLinkListComponent!.resetComponent([
              {
                linkText: "Dashboard",
                routerLink: ['/']
              },
              {
                linkText: "Taskgroups",
                routerLink: ["/taskgroups"]
              }
            ]);
            this.taskgroupPath.forEach(taskgroupEntity => {
              this.navLinkListComponent!.addNavigationLink(taskgroupEntity.taskgroupName, ['/taskgroups', taskgroupEntity.taskgroupID.toString()]);
            })
          }
        })
      }

      if(params.has('taskID')) {
        this.taskService.tasksTaskIDGet(Number(params.get('taskID'))).subscribe({
          next: resp => {
            this.task = resp;
            this.taskStatus = this.getStatusOfTask(resp)
            this.calcProgress();
          }
        });
        this.scheduleService.schedulesTaskIDGet(Number(params.get('taskID'))).subscribe({
          next: resp => {
            this.schedules = resp;
            this.schedulesLoaded = true;
            this.calcProgress();
          }
        })

        this.taskService.tasksTaskIDSubtasksGet(Number(params.get('taskID'))).subscribe({
          next: resp => {
            this.subTasks = resp;
          }
        })
      }
    });
  }

  getStatusOfTask(task: TaskEntityInfo ) {
    const taskStatus = this.taskStatusService.computeTaskStatus(task);
    return this.taskStatusService.convertTaskStatusToColor(taskStatus);
  }

  calcProgress() {
    if(this.task != undefined && this.task!.eta > 0) {
      const currentProgress = this.task!.workTime / this.task!.eta * 100;

      let futureProgress = 0;
      this.schedules.forEach(schedule => {
        if(schedule.scheduleType == "ADVANCED" && schedule.startTime == null) {
          let advancedSchedule: AdvancedScheduleInfo = schedule as AdvancedScheduleInfo;
          if(moment(advancedSchedule.scheduleStartTime).isBefore(moment())) {
            const duration = moment.duration(moment(advancedSchedule.scheduleStopTime).diff(moment(advancedSchedule.scheduleStartTime)));
            const plannedMinutes = duration.asMinutes();
            futureProgress += plannedMinutes;
          }
        }
      })

      this.futureProgress = (futureProgress) / this.task!.eta *100 + "%";
      this.currentProgress = currentProgress + "%";
    }

  }

  openTaskEditor() {
    if(this.task != undefined) {
      const taskEditorInfo: TaskEditorData = {
        task: this.task!,
        taskgroupID: this.taskgroupID!,
        parentTask: undefined
      };
      this.dialog.open(TaskEditorComponent, {data: taskEditorInfo, width: "600px"})
    }

  }

  startTaskNow() {
    if(this.task != undefined) {
      this.scheduleService.schedulesTaskIDNowPost(this.task.taskID).subscribe({
        next: resp => {
          this.router.navigateByUrl('/');
        }
      });
    }
  }

  finishTask() {
    this.taskService.tasksTaskIDFinishPost(this.task!.taskID).subscribe({
      next: resp => {
        this.task!.finished = !this.task!.finished;
      }
    })
  }

  openRepeatingTaskEditor() {
    const dialogRef = this.dialog.open(TaskSeriesCreatorComponent, {
      data: this.task!,
      minWidth: "400px"
    })
  }

  addSubtask() {
    const editorData: TaskEditorData = {
      task: undefined,
      taskgroupID: this.taskgroupID,
      parentTask: this.task
    }
    const dialogRef = this.dialog.open(TaskEditorComponent, {
      data: editorData,
      minWidth: "400px"
    })
  }

  deleteTask() {
    this.taskService.tasksTaskIDDelete(this.task!.taskID).subscribe({
      next: resp => {
        this.router.navigateByUrl("/")
      }
    })
  }
}