import { Component, OnInit, Input, forwardRef, OnDestroy } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormGroup, ReactiveFormsModule } from '@angular/forms';
import { AngularPConnectData, AngularPConnectService } from '@pega/angular-sdk-components';
import { Utils } from '@pega/angular-sdk-components';
import { ComponentMapperComponent } from '@pega/angular-sdk-components';
import { handleEvent } from '@pega/angular-sdk-components';
import { PConnFieldProps } from '@pega/angular-sdk-components';

interface RichTextProps extends PConnFieldProps {
  // If any, enter additional props that only exist on RichText here
}

@Component({
  selector: 'app-rich-text',
  templateUrl: './rich-text.component.html',
  styleUrls: ['./rich-text.component.scss'],
  standalone: true,
  imports: [CommonModule, ReactiveFormsModule, forwardRef(() => ComponentMapperComponent)]
})
export class RichTextComponent implements OnInit, OnDestroy {
  @Input() pConn$: typeof PConnect;
  @Input() formGroup$: FormGroup;

  // Used with AngularPConnect
  angularPConnectData: AngularPConnectData = {};
  configProps$: RichTextProps;

  label$ = '';
  value$ = '';
  bRequired$ = false;
  bReadonly$ = false;
  bDisabled$ = false;
  bVisible$ = true;
  displayMode$?: string = '';
  controlName$: string;
  testId: string;
  helperText: string;
  placeholder: any;
  info: any;
  error: boolean;
  status: any;
  actionsApi: Object;
  propName: string;

  constructor(
    private angularPConnect: AngularPConnectService,
    private utils: Utils
  ) {}

  ngOnInit(): void {
    // First thing in initialization is registering and subscribing to the AngularPConnect service
    this.angularPConnectData = this.angularPConnect.registerAndSubscribeComponent(this, this.onStateChange);

    // call updateSelf when initializing
    this.checkAndUpdate();
  }

  ngOnDestroy(): void {
    if (this.angularPConnectData.unsubscribeFn) {
      this.angularPConnectData.unsubscribeFn();
    }
  }

  // Callback passed when subscribing to store change
  onStateChange() {
    this.checkAndUpdate();
  }

  checkAndUpdate() {
    // Should always check the bridge to see if the component should
    // update itself (re-render)
    const bUpdateSelf = this.angularPConnect.shouldComponentUpdate(this);

    // ONLY call updateSelf when the component should update
    if (bUpdateSelf) {
      this.updateSelf();
    }
  }

  // updateSelf
  updateSelf(): void {
    // moved this from ngOnInit() and call this from there instead...
    this.configProps$ = this.pConn$.resolveConfigProps(this.pConn$.getConfigProps()) as RichTextProps;
    const stateProps = this.pConn$.getStateProps();
    this.status = stateProps?.status;

    if (this.configProps$.value != undefined) {
      this.value$ = this.configProps$.value;
    }

    this.testId = this.configProps$.testId;
    this.displayMode$ = this.configProps$.displayMode;
    this.label$ = this.configProps$.label;
    this.placeholder = this.configProps$.placeholder;
    this.info = stateProps?.validatemessage || this.configProps$.helperText;
    this.error = stateProps?.status === 'error';

    this.actionsApi = this.pConn$.getActionsApi();
    this.propName = this.pConn$.getStateProps().value;

    if (this.configProps$.required != null) {
      this.bRequired$ = this.utils.getBooleanValue(this.configProps$.required);
    }

    if (this.configProps$.visibility != null) {
      this.bVisible$ = this.utils.getBooleanValue(this.configProps$.visibility);
    }

    if (this.configProps$.disabled != undefined) {
      this.bDisabled$ = this.utils.getBooleanValue(this.configProps$.disabled);
    }

    if (this.configProps$.readOnly != null) {
      this.bReadonly$ = this.utils.getBooleanValue(this.configProps$.readOnly);
    }
  }

  fieldOnChange(editorValue: any) {
    const oldVal = this.value$ ?? '';
    const newVal = editorValue?.editor?.getBody()?.innerHTML ?? '';
    const isValueChanged = newVal.toString() !== oldVal.toString();

    if (isValueChanged || this.status === 'error') {
      const property = this.propName;
      this.pConn$.clearErrorMessages({
        property,
        category: '',
        context: ''
      });
    }
  }

  fieldOnBlur(editorValue: any) {
    const oldVal = this.value$ ?? '';
    const isValueChanged = editorValue.toString() !== oldVal.toString();

    if (isValueChanged) {
      handleEvent(this.actionsApi, 'changeNblur', this.propName, editorValue);
    }
  }
}