///
/// Copyright © 2016-2026 The Thingsboard Authors
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
///     http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///

import { Component, ElementRef, Inject, OnDestroy, OnInit, Renderer2, ViewChild } from '@angular/core';
import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
import { Store } from '@ngrx/store';
import { AppState } from '@core/core.state';

import { Ace } from 'ace-builds';
import { DialogComponent } from '@shared/components/dialog.component';
import { Router } from '@angular/router';
import { ContentType, contentTypesMap } from '@shared/models/constants';
import { getAce, updateEditorSize } from '@shared/models/ace/ace.models';
import { Observable } from 'rxjs/internal/Observable';
import { beautifyJs } from '@shared/models/beautify.models';
import { of } from 'rxjs';
import { base64toString, isLiteralObject } from '@core/utils';

export interface EventContentDialogData {
  content: string;
  title: string;
  contentType: ContentType;
}

@Component({
    selector: 'tb-event-content-dialog',
    templateUrl: './event-content-dialog.component.html',
    styleUrls: ['./event-content-dialog.component.scss'],
    standalone: false
})
export class EventContentDialogComponent extends DialogComponent<EventContentDialogComponent> implements OnInit, OnDestroy {

  @ViewChild('eventContentEditor', {static: true})
  eventContentEditorElmRef: ElementRef;

  title: string;
  showBorder = false;

  private contentType: ContentType;
  private aceEditor: Ace.Editor;

  constructor(protected store: Store<AppState>,
              protected router: Router,
              @Inject(MAT_DIALOG_DATA) public data: EventContentDialogData,
              protected dialogRef: MatDialogRef<EventContentDialogComponent>,
              private renderer: Renderer2) {
    super(store, router, dialogRef);
  }

  ngOnInit(): void {
    this.title = this.data.title;
    this.contentType = this.data.contentType;

    this.createEditor(this.eventContentEditorElmRef, this.data.content);
  }

  ngOnDestroy(): void {
    this.aceEditor?.destroy();
    super.ngOnDestroy();
  }

  private isJson(str: string) {
    try {
      return isLiteralObject(JSON.parse(str));
    } catch (e) {
      return false;
    }
  }

  private createEditor(editorElementRef: ElementRef, content: string) {
    const editorElement = editorElementRef.nativeElement;
    let mode = 'java';
    let content$: Observable<string> = null;
    if (this.contentType) {
      mode = contentTypesMap.get(this.contentType).code;
      if (this.contentType === ContentType.JSON && content) {
        content$ = beautifyJs(content, {indent_size: 2});
      } else if (this.contentType === ContentType.BINARY && content) {
        try {
          const decodedData = base64toString(content);
          if (this.isJson(decodedData)) {
            mode = 'json';
            content$ = beautifyJs(decodedData, {indent_size: 2});
          } else {
            content$ = of(decodedData);
          }
        } catch (e) {/**/}
      }
    }
    if (!content$) {
      content$ = of(content);
    }

    content$.subscribe((processedContent) => {
      const isJSON = mode === 'json' && processedContent !== '{}';
      this.showBorder = isJSON;
      const editorOptions: Partial<Ace.EditorOptions> = {
        mode: `ace/mode/${mode}`,
        theme: 'ace/theme/github',
        showGutter: isJSON,
        showFoldWidgets: true,
        foldStyle: 'markbeginend',
        showPrintMargin: false,
        readOnly: true,
        enableSnippets: false,
        enableBasicAutocompletion: false,
        enableLiveAutocompletion: false,
      };
      getAce().subscribe(
        (ace) => {
          this.aceEditor = ace.edit(editorElement, editorOptions);
          this.aceEditor.session.setUseWrapMode(false);
          this.aceEditor.setValue(processedContent, -1);
          updateEditorSize(editorElement, processedContent, this.aceEditor, this.renderer, {showGutter: isJSON});
        }
      )
    });
  }
}