import { Component, inject, signal } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';
import { HttpClient } from '@angular/common/http';

interface TestResult {
  endpoint: string;
  method: string;
  status: 'pending' | 'running' | 'success' | 'error';
  duration?: number;
  response?: any;
  error?: string;
  timestamp: number;
}

@Component({
  selector: 'app-tests-panel',
  standalone: true,
  imports: [CommonModule, FormsModule],
  template: `
    <div class="tests-panel" [class.tests-panel--fullscreen]="isFullscreen()">
      <div class="panel-header">
        <h2>🧪 API Tests Panel</h2>
        <div class="header-actions">
          <button type="button" class="test-btn test-btn--neutral" (click)="toggleFullscreen()">
            {{ isFullscreen() ? 'Quitter plein écran' : 'Plein écran' }}
          </button>
        </div>
        <p class="panel-description">
          Test all ObsiViewer APIs and validate functionality. Each test shows execution time and response details.
        </p>
      </div>

      <div class="panel-layout">
        <div class="panel-content">
          <!-- Test Sections -->
          <div class="test-sections">
          <div class="test-section">
            <h3>⚡ Quick checks</h3>
            <div class="quick-actions">
              <button type="button" class="test-btn test-btn--primary" (click)="runHealthCheck()" [disabled]="isRunning()">
                /api/health
              </button>
              <button type="button" class="test-btn test-btn--secondary" (click)="runVaultMetadata()" [disabled]="isRunning()">
                /api/vault/metadata
              </button>
              <button type="button" class="test-btn test-btn--secondary" (click)="runVaultPaginated()" [disabled]="isRunning()">
                /api/vault/metadata/paginated
              </button>
              <button type="button" class="test-btn test-btn--info" (click)="runLogTest()" [disabled]="isRunning()">
                Logging
              </button>
              <button type="button" class="test-btn test-btn--accent" (click)="runSimulateEvent()" [disabled]="isRunning()">
                Simulate event
              </button>
              <button type="button" class="test-btn test-btn--warning quick-actions__full" (click)="runBatchTest()" [disabled]="isRunning()">
                Full smoke suite
              </button>
            </div>
            <p class="quick-actions__hint">
              Results and timings appear on the right. Use filters there to focus on failed calls.
            </p>
          </div>

          <div class="test-section">
            <h3>🔭 API Explorer</h3>
            <div class="file-test-form" style="margin-bottom: 12px;">
              <div class="form-row">
                <label for="apiSearch">Search endpoint</label>
                <input id="apiSearch" type="text" class="form-input" [(ngModel)]="builderSearchTerm" placeholder="search by name or path..." />
              </div>
              <div class="form-row">
                <label for="apiSelect">Endpoint</label>
                <select id="apiSelect" class="form-input" [ngModel]="selectedEndpointKey()" (ngModelChange)="onSelectEndpoint($event)">
                  <option *ngFor="let ep of getFilteredEndpoints()" [value]="ep.key">{{ ep.group }} • {{ ep.label }} ({{ ep.method }})</option>
                </select>
              </div>
              <div class="form-row" *ngIf="currentEndpoint">
                <div class="text-xs text-muted">Path: <code>{{ currentEndpoint.path }}</code></div>
              </div>
            </div>

            <div class="file-test-form" *ngIf="currentEndpoint">
              <div class="form-row" *ngIf="currentEndpoint.pathParams?.length">
                <label>Path params</label>
                <div class="test-group">
                  <ng-container *ngFor="let p of currentEndpoint.pathParams">
                    <div>
                      <input class="form-input" [placeholder]="p" [ngModel]="paramValues()[p] || ''" (ngModelChange)="updateParamValue(p, $event)" />
                    </div>
                  </ng-container>
                </div>
              </div>

              <div class="form-row" *ngIf="currentEndpoint.query?.length">
                <label>Query params</label>
                <div class="test-group">
                  <ng-container *ngFor="let q of currentEndpoint.query">
                    <div>
                      <input class="form-input" [placeholder]="q.name + (q.required ? ' *' : '')" [ngModel]="paramValues()[q.name] || ''" (ngModelChange)="updateParamValue(q.name, $event)" />
                    </div>
                  </ng-container>
                </div>
              </div>

              <div class="form-row" *ngIf="currentEndpoint.headersSupported">
                <label>Headers (JSON)</label>
                <textarea class="form-textarea" rows="3" [(ngModel)]="headersText"></textarea>
              </div>

              <div class="form-row" *ngIf="currentEndpoint.key === 'files.putBlob'">
                <label>Upload file (PNG/SVG)</label>
                <input type="file" (change)="onFileChosen($event)" />
                <div class="text-xs text-muted" *ngIf="selectedFileName">Selected: {{ selectedFileName }}</div>
              </div>

              <div class="form-row" *ngIf="showBodyEditor()">
                <label>Body {{ currentEndpoint.contentType ? '(' + currentEndpoint.contentType + ')' : '' }}</label>
                <textarea class="form-textarea" rows="6" [(ngModel)]="bodyText"></textarea>
              </div>

              <div class="test-group">
                <button type="button" class="test-btn test-btn--primary" (click)="runDynamicRequest()" [disabled]="isRunning()">Run Request</button>
                <div class="text-xs text-muted" style="align-self:center;">
                  <span>Preview:</span>
                  <code>{{ buildPreviewUrl() }}</code>
                </div>
              </div>
            </div>
          </div>
        </div>

        <!-- Results Panel -->
        <div class="results-panel">
          <div class="results-header">
            <div>
              <h3>Test Results</h3>
              <p class="results-subtitle" *ngIf="results().length === 0">No tests yet. Use a quick check or the explorer to start.</p>
              <p class="results-subtitle" *ngIf="results().length > 0">Newest first • {{ results().length }} result{{ results().length > 1 ? 's' : '' }}</p>
            </div>
            <div class="results-tools">
              <div class="results-filters">
                <button type="button" class="filter-chip" [class.filter-chip--active]="isStatusFilterActive('all')" (click)="setStatusFilter('all')">All</button>
                <button type="button" class="filter-chip filter-chip--success" [class.filter-chip--active]="isStatusFilterActive('success')" (click)="setStatusFilter('success')">Success</button>
                <button type="button" class="filter-chip filter-chip--error" [class.filter-chip--active]="isStatusFilterActive('error')" (click)="setStatusFilter('error')">Errors</button>
                <button type="button" class="filter-chip filter-chip--running" [class.filter-chip--active]="isStatusFilterActive('running')" (click)="setStatusFilter('running')">Running</button>
              </div>
              <button type="button" class="clear-btn" (click)="clearResults()" [disabled]="results().length === 0">
                Clear
              </button>
            </div>
          </div>

          <div class="results-list" *ngIf="getFilteredResults().length > 0; else noResults">
            <div *ngFor="let result of getFilteredResults()" class="result-item" [ngClass]="getResultClass(result)">
              <div class="result-header">
                <span class="result-method">{{ result.method }}</span>
                <span class="result-endpoint">{{ result.endpoint }}</span>
                <span class="result-status">{{ result.status.toUpperCase() }}</span>
                <span class="result-duration" *ngIf="result.duration">({{ result.duration }}ms)</span>
              </div>
              <div class="result-meta">
                <span class="result-timestamp">{{ result.timestamp | date:'mediumTime' }}</span>
                <button type="button" class="result-toggle" (click)="toggleResultDetails(result)">
                  {{ isResultExpanded(result) ? 'Hide payload' : 'View payload' }}
                </button>
              </div>
              <div class="result-details" *ngIf="isResultExpanded(result) && (result.response || result.error)">
                <pre class="result-json">{{ result.response ? (result.response | json) : result.error }}</pre>
              </div>
            </div>
          </div>

          <ng-template #noResults>
            <div class="no-results">
              <p>No tests run yet.</p>
              <p>Start with a quick health check or run the full smoke suite.</p>
            </div>
          </ng-template>
        </div>
      </div>
    </div>
  `,
  styles: [`
    .tests-panel {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      font-family: var(--font-mono), 'Monaco', 'Menlo', monospace;
      font-size: 14px;
      color: var(--text-main);
      background: var(--bg);
    }

    .panel-header {
      margin-bottom: 30px;
      text-align: center;
    }

    .panel-header .header-actions {
      position: absolute;
      right: 20px;
      top: 20px;
    }

    .panel-header h2 {
      margin: 0 0 10px 0;
      font-size: 24px;
      font-weight: 600;
      color: var(--text-main);
    }

    .panel-description {
      margin: 0;
      color: var(--text-muted);
      font-size: 16px;
      max-width: 600px;
      margin: 0 auto;
    }

    .panel-layout {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .test-sections {
      display: grid;
      gap: 20px;
    }

    .test-section {
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 20px;
      background: var(--card);
    }

    .test-section h3 {
      margin: 0 0 15px 0;
      font-size: 18px;
      font-weight: 600;
      color: var(--text-main);
    }

    .quick-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .quick-actions__full {
      flex: 1 1 100%;
    }

    .quick-actions__hint {
      margin-top: 8px;
      font-size: 12px;
      color: var(--text-muted);
    }

    .test-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .test-btn {
      padding: 8px 16px;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      font-size: 14px;
      font-weight: 500;
      transition: all 0.2s;
      min-width: 120px;
    }

    .test-btn:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }

    .test-btn--primary {
      background: var(--primary);
      color: white;
    }

    .test-btn--primary:hover:not(:disabled) {
      background: color-mix(in srgb, var(--primary) 85%, black 15%);
    }

    .test-btn--secondary {
      background: var(--muted);
      color: white;
    }

    .test-btn--secondary:hover:not(:disabled) {
      background: color-mix(in srgb, var(--muted) 85%, black 15%);
    }

    .test-btn--info {
      background: var(--info);
      color: white;
    }

    .test-btn--info:hover:not(:disabled) {
      background: color-mix(in srgb, var(--info) 85%, black 15%);
    }

    .test-btn--warning {
      background: var(--warning);
      color: var(--text-main);
    }

    .test-btn--warning:hover:not(:disabled) {
      background: color-mix(in srgb, var(--warning) 85%, black 15%);
    }

    .test-btn--danger {
      background: var(--danger);
      color: white;
    }

    .test-btn--danger:hover:not(:disabled) {
      background: color-mix(in srgb, var(--danger) 85%, black 15%);
    }

    .test-btn--accent {
      background: var(--accent);
      color: white;
    }

    .test-btn--accent:hover:not(:disabled) {
      background: color-mix(in srgb, var(--accent) 85%, black 15%);
    }

    .test-btn--neutral {
      background: var(--secondary);
      color: white;
    }

    .test-btn--neutral:hover:not(:disabled) {
      background: color-mix(in srgb, var(--secondary) 85%, black 15%);
    }

    .file-test-form {
      display: grid;
      gap: 15px;
    }

    .form-row {
      display: grid;
      gap: 5px;
    }

    .form-row label {
      font-weight: 600;
      color: var(--text-main);
    }

    .form-input,
    .form-textarea {
      padding: 8px 12px;
      border: 1px solid var(--border);
      border-radius: 4px;
      font-family: inherit;
      font-size: 14px;
      background: var(--card);
      color: var(--text-main);
    }

    .form-input:focus,
    .form-textarea:focus {
      outline: none;
      border-color: var(--ring);
      box-shadow: 0 0 0 2px color-mix(in srgb, var(--ring) 25%, transparent);
    }

    .results-panel {
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--card);
      display: grid;
      grid-template-rows: auto 1fr;
      position: static;
      z-index: 0;
    }

    .results-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px;
      border-bottom: 1px solid var(--border);
    }

    .results-header h3 {
      margin: 0;
      font-size: 18px;
      font-weight: 600;
      color: var(--text-main);
    }

    .results-subtitle {
      margin: 4px 0 0;
      font-size: 12px;
      color: var(--text-muted);
    }

    .results-tools {
      display: flex;
      gap: 10px;
      align-items: center;
    }

    .results-filters {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .filter-chip {
      padding: 2px 10px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: var(--surface-1);
      font-size: 12px;
      cursor: pointer;
      color: var(--text-muted);
    }

    .filter-chip--success {
      border-color: color-mix(in srgb, var(--success) 70%, var(--border));
      color: var(--success);
    }

    .filter-chip--error {
      border-color: color-mix(in srgb, var(--danger) 70%, var(--border));
      color: var(--danger);
    }

    .filter-chip--running {
      border-color: color-mix(in srgb, var(--warning) 70%, var(--border));
      color: var(--warning);
    }

    .filter-chip--active {
      background: color-mix(in srgb, var(--primary) 25%, transparent);
      color: var(--text-main);
      border-color: color-mix(in srgb, var(--primary) 80%, var(--border));
    }

    .clear-btn {
      padding: 6px 12px;
      background: var(--danger);
      color: white;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      font-size: 14px;
    }

    .clear-btn:hover {
      background: color-mix(in srgb, var(--danger) 85%, black 15%);
    }

    .clear-btn:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }

    .results-list {
      overflow-y: auto;
      max-height: 500px;
    }

    .result-item {
      border-bottom: 1px solid var(--border);
      padding: 15px 20px;
    }

    .result-item:last-child {
      border-bottom: none;
    }

    .result-item--success {
      background: color-mix(in srgb, var(--success) 15%, transparent);
      border-left: 4px solid var(--success);
    }

    .result-item--error {
      background: color-mix(in srgb, var(--danger) 15%, transparent);
      border-left: 4px solid var(--danger);
    }

    .result-item--running {
      background: color-mix(in srgb, var(--warning) 15%, transparent);
      border-left: 4px solid var(--warning);
    }

    .result-item--pending {
      background: var(--surface-1);
      border-left: 4px solid var(--muted);
    }

    .result-header {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
      flex-wrap: wrap;
    }

    .result-method {
      font-weight: bold;
      color: var(--primary);
      background: color-mix(in srgb, var(--primary) 15%, transparent);
      padding: 2px 6px;
      border-radius: 3px;
      font-size: 12px;
    }

    .result-endpoint {
      font-family: monospace;
      font-size: 14px;
      color: var(--text-main);
      flex: 1;
    }

    .result-status {
      font-weight: bold;
      padding: 2px 8px;
      border-radius: 12px;
      font-size: 12px;
    }

    .result-item--success .result-status {
      background: color-mix(in srgb, var(--success) 20%, transparent);
      color: var(--success);
    }

    .result-item--error .result-status {
      background: color-mix(in srgb, var(--danger) 20%, transparent);
      color: var(--danger);
    }

    .result-item--running .result-status {
      background: color-mix(in srgb, var(--warning) 20%, transparent);
      color: var(--warning);
    }

    .result-item--pending .result-status {
      background: var(--surface-1);
      color: var(--muted);
    }

    .result-duration {
      font-size: 12px;
      color: var(--text-muted);
    }

    .result-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 8px;
      margin-top: 4px;
    }

    .result-timestamp {
      font-size: 12px;
      color: var(--text-muted);
    }

    .result-toggle {
      padding: 2px 10px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: transparent;
      font-size: 12px;
      cursor: pointer;
      color: var(--text-muted);
    }

    .result-details {
      margin-top: 10px;
    }

    .result-json {
      background: var(--surface-1);
      padding: 10px;
      border-radius: 4px;
      font-size: 12px;
      max-height: 200px;
      overflow-y: auto;
      margin: 0;
      white-space: pre-wrap;
      word-break: break-word;
      color: var(--text-main);
    }

    .no-results {
      text-align: center;
      padding: 40px 20px;
      color: var(--text-muted);
    }

    .no-results p {
      margin: 0;
      font-size: 16px;
    }

    .sse-events {
      margin-top: 15px;
      padding: 15px;
      background: var(--surface-1);
      border-radius: 6px;
    }

    .sse-events h4 {
      margin: 0 0 10px 0;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }

    .events-list {
      max-height: 150px;
      overflow-y: auto;
    }

    .event-item {
      display: flex;
      gap: 10px;
      padding: 5px 0;
      font-size: 12px;
      border-bottom: 1px solid var(--border);
    }

    .event-item:last-child {
      border-bottom: none;
    }

    .event-type {
      font-weight: bold;
      color: var(--primary);
    }

    .event-data {
      flex: 1;
      font-family: monospace;
      color: var(--text-main);
    }

    .event-time {
      color: var(--text-muted);
    }

    @media (max-width: 1024px) {
      .results-list {
        max-height: 400px;
      }
    }

    .tests-panel--fullscreen {
      position: fixed;
      inset: 0;
      z-index: 50;
      background: var(--bg);
      width: 100vw;
      height: 100vh;
      overflow: hidden;
      padding: 12px 12px 12px 12px;
    }

    .tests-panel--fullscreen .panel-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
      gap: 24px;
      align-items: start;
      height: calc(100vh - 100px);
    }

    .tests-panel--fullscreen .test-sections {
      overflow: auto;
    }

    .tests-panel--fullscreen .results-panel {
      align-self: stretch;
    }
  `]
})
export class TestsPanelComponent {
  private http = inject(HttpClient);

  // Test form data
  testFilePath = signal('');
  testFileContent = signal('');
  testNoteId = signal('');

  // Test state
  results = signal<TestResult[]>([]);
  sseEvents = signal<Array<{type: string, data: any, timestamp: Date}>>([]);
  isRunning = signal(false);

  // UI state for results panel
  private statusFilter = signal<'all' | 'success' | 'error' | 'running'>('all');
  private expandedResults = signal<Set<TestResult>>(new Set<TestResult>());

  // SSE connection
  private sseConnection: EventSource | null = null;
  isFullscreen = signal(false);

  // ---------- API Explorer (dynamic) ----------
  builderSearchTerm = '';
  selectedEndpointKey = signal<string>('health.get');
  paramValues = signal<Record<string, string>>({});
  bodyText = signal<string>('{}');
  headersText = signal<string>('{}');
  selectedFile: File | null = null;
  selectedFileName = '';

  endpoints: Array<{
    key: string;
    group: string;
    label: string;
    method: 'GET'|'POST'|'PUT'|'PATCH'|'DELETE'|'SSE';
    path: string; // may include {param}
    pathParams?: string[];
    query?: Array<{ name: string; required?: boolean }>;
    contentType?: 'json'|'text'|'binary';
    responseType?: 'json'|'text';
    headersSupported?: boolean;
    sampleBody?: any;
  }> = [
    { key: 'health.get', group: 'System', label: 'Health', method: 'GET', path: '/api/health' },
    { key: 'perf.get', group: 'System', label: 'Performance', method: 'GET', path: '/__perf' },
    { key: 'settings.get', group: 'System', label: 'Get Settings', method: 'GET', path: '/api/settings' },
    { key: 'settings.put', group: 'System', label: 'Update Settings', method: 'PUT', path: '/api/settings', contentType: 'json', sampleBody: { enableBackups: true } },
    { key: 'events.sse', group: 'Events', label: 'Vault Events (SSE)', method: 'SSE', path: '/api/vault/events' },

    { key: 'vault.notesRaw', group: 'Vault', label: 'Load Vault Notes (raw)', method: 'GET', path: '/api/vault' },
    { key: 'vault.metadata', group: 'Vault', label: 'Metadata', method: 'GET', path: '/api/vault/metadata' },
    { key: 'vault.metadataPaginated', group: 'Vault', label: 'Metadata (paginated)', method: 'GET', path: '/api/vault/metadata/paginated', query: [
      { name: 'limit' }, { name: 'cursor' }, { name: 'search' }, { name: 'folder' }
    ]},

    { key: 'files.list', group: 'Files', label: 'List from Meili', method: 'GET', path: '/api/files/list' },
    { key: 'files.metadata', group: 'Files', label: 'Metadata (mixed)', method: 'GET', path: '/api/files/metadata', query: [ { name: 'source' } ] },
    { key: 'files.byDate', group: 'Files', label: 'By Date', method: 'GET', path: '/api/files/by-date', query: [ { name: 'date', required: true } ] },
    { key: 'files.byDateRange', group: 'Files', label: 'By Date Range', method: 'GET', path: '/api/files/by-date-range', query: [ { name: 'start', required: true }, { name: 'end' } ] },
    { key: 'files.get', group: 'Files', label: 'Read File', method: 'GET', path: '/api/files', query: [ { name: 'path', required: true } ], responseType: 'text' },
    { key: 'files.put', group: 'Files', label: 'Write File', method: 'PUT', path: '/api/files', query: [ { name: 'path', required: true } ], contentType: 'text', sampleBody: '# Title\n\nContent...' },
    { key: 'files.putBlob', group: 'Files', label: 'Write Binary Sidecar', method: 'PUT', path: '/api/files/blob', query: [ { name: 'path', required: true } ], contentType: 'binary' },
    { key: 'files.rename', group: 'Files', label: 'Rename File', method: 'PUT', path: '/api/files/rename', contentType: 'json', sampleBody: { oldPath: 'folder/old.md', newName: 'new.md' } },

    { key: 'notes.create', group: 'Notes', label: 'Create Note', method: 'POST', path: '/api/vault/notes', contentType: 'json', sampleBody: { fileName: 'Nouvelle note.md', folderPath: '', frontmatter: { title: 'Nouvelle note' }, content: '# Nouvelle note' } },
    { key: 'notes.updateFrontmatter', group: 'Notes', label: 'Update Frontmatter', method: 'PATCH', path: '/api/vault/notes/{id}', pathParams: ['id'], contentType: 'json', sampleBody: { frontmatter: { title: 'Updated' } } },
    { key: 'notes.delete', group: 'Notes', label: 'Delete (to .trash)', method: 'DELETE', path: '/api/vault/notes/{id}', pathParams: ['id'] },
    { key: 'notes.move', group: 'Notes', label: 'Move Note', method: 'POST', path: '/api/vault/notes/move', contentType: 'json', sampleBody: { notePath: 'folder/a.md', newFolderPath: 'folder2' } },
    { key: 'notes.tags', group: 'Notes', label: 'Update Tags', method: 'PUT', path: '/api/notes/{idOrPath}/tags', pathParams: ['idOrPath'], contentType: 'json', sampleBody: { tags: ['home','docs'] } },

    { key: 'folders.list', group: 'Folders', label: 'List Folders', method: 'GET', path: '/api/folders/list' },
    { key: 'folders.create', group: 'Folders', label: 'Create Folder', method: 'POST', path: '/api/folders', contentType: 'json', sampleBody: { path: 'new-folder' } },
    { key: 'folders.rename', group: 'Folders', label: 'Rename Folder', method: 'PUT', path: '/api/folders/rename', contentType: 'json', sampleBody: { oldPath: 'old-folder', newName: 'renamed-folder' } },
    { key: 'folders.delete', group: 'Folders', label: 'Delete Folder', method: 'DELETE', path: '/api/folders', query: [ { name: 'path', required: true } ] },
    { key: 'folders.duplicate', group: 'Folders', label: 'Duplicate Folder', method: 'POST', path: '/api/folders/duplicate', contentType: 'json', sampleBody: { sourcePath: 'src', destinationPath: 'dst' } },
    { key: 'folders.deletePages', group: 'Folders', label: 'Delete Pages in Folder', method: 'DELETE', path: '/api/folders/pages', query: [ { name: 'path', required: true } ] },

    { key: 'attachments.resolve', group: 'Attachments', label: 'Resolve Attachment', method: 'GET', path: '/api/attachments/resolve', query: [ { name: 'name', required: true }, { name: 'note' }, { name: 'base' } ] },

    { key: 'search.query', group: 'Search', label: 'Meili Search', method: 'GET', path: '/api/search', query: [ { name: 'q', required: true }, { name: 'limit' }, { name: 'offset' }, { name: 'sort' }, { name: 'highlight' } ] },
    { key: 'meili.reindex', group: 'Search', label: 'Manual Reindex', method: 'POST', path: '/api/reindex' },

    { key: 'graph.get', group: 'Config', label: 'Get Graph', method: 'GET', path: '/api/vault/graph' },
    { key: 'graph.put', group: 'Config', label: 'Update Graph', method: 'PUT', path: '/api/vault/graph', headersSupported: true, contentType: 'json', sampleBody: { search: '', showTags: false } },
    { key: 'bookmarks.get', group: 'Config', label: 'Get Bookmarks', method: 'GET', path: '/api/vault/bookmarks' },
    { key: 'bookmarks.put', group: 'Config', label: 'Update Bookmarks', method: 'PUT', path: '/api/vault/bookmarks', headersSupported: true, contentType: 'json', sampleBody: { items: [] } },

    { key: 'quicklinks.counts', group: 'Quick Links', label: 'Counts', method: 'GET', path: '/api/quick-links/counts' },

    { key: 'logs.single', group: 'Logs', label: 'Post Log', method: 'POST', path: '/api/log', contentType: 'json', sampleBody: { event: 'test_api_call', level: 'info', context: { route: '/api/test' }, data: { result: 'success' } } },
    { key: 'logs.batch', group: 'Logs', label: 'Post Log (alt)', method: 'POST', path: '/api/logs', contentType: 'json', sampleBody: { source: 'frontend', level: 'info', message: 'hello', data: { any: true } } },
  ];

  get currentEndpoint() {
    const key = this.selectedEndpointKey();
    return this.endpoints.find(e => e.key === key) || null;
  }

  getFilteredEndpoints() {
    const q = (this.builderSearchTerm || '').toLowerCase();
    const list = this.endpoints.slice();
    if (!q) return list;
    return list.filter(e =>
      e.key.toLowerCase().includes(q) ||
      e.label.toLowerCase().includes(q) ||
      e.group.toLowerCase().includes(q) ||
      e.path.toLowerCase().includes(q)
    );
  }

  onSelectEndpoint(key: string): void {
    this.selectedEndpointKey.set(key);
    const ep = this.currentEndpoint;
    const initParams: Record<string, string> = {};
    (ep?.pathParams || []).forEach(p => initParams[p] = '');
    (ep?.query || []).forEach(q => { if (q.required) initParams[q.name] = ''; });
    this.paramValues.set(initParams);
    this.headersText.set(ep?.headersSupported ? '{\n  "If-Match": "rev-or-etag"\n}' : '{}');
    if (ep?.contentType === 'json' && ep.sampleBody !== undefined) {
      this.bodyText.set(JSON.stringify(ep.sampleBody, null, 2));
    } else if (ep?.contentType === 'text' && typeof ep.sampleBody === 'string') {
      this.bodyText.set(String(ep.sampleBody));
    } else {
      this.bodyText.set(ep?.contentType === 'json' ? '{}' : '');
    }
    this.selectedFile = null;
    this.selectedFileName = '';
  }

  updateParamValue(name: string, value: string): void {
    this.paramValues.update(map => ({ ...map, [name]: value }));
  }

  onFileChosen(evt: Event): void {
    const input = evt.target as HTMLInputElement;
    const file = input?.files?.[0] || null;
    this.selectedFile = file;
    this.selectedFileName = file ? `${file.name} (${file.type || 'application/octet-stream'}, ${file.size} bytes)` : '';
  }

  showBodyEditor(): boolean {
    const ep = this.currentEndpoint;
    if (!ep) return false;
    if (ep.contentType === 'binary') return false;
    return ep.method === 'POST' || ep.method === 'PUT' || ep.method === 'PATCH';
  }

  buildPreviewUrl(): string {
    const ep = this.currentEndpoint;
    if (!ep) return '';
    const path = this.replacePathParams(ep.path, this.paramValues());
    const qs = this.buildQueryString(ep.query, this.paramValues());
    return qs ? `${path}?${qs}` : path;
  }

  private replacePathParams(path: string, params: Record<string, string>): string {
    return path.replace(/\{(\w+)\}/g, (_m, p1) => encodeURIComponent(params[p1] || ''));
  }

  private buildQueryString(query: Array<{ name: string; required?: boolean }> | undefined, params: Record<string, string>): string {
    if (!query || query.length === 0) return '';
    const sp = new URLSearchParams();
    for (const q of query) {
      const v = params[q.name];
      if (v !== undefined && v !== '') sp.append(q.name, v);
    }
    return sp.toString();
  }

  // ---------- Results helpers ----------

  setStatusFilter(filter: 'all' | 'success' | 'error' | 'running'): void {
    this.statusFilter.set(filter);
  }

  isStatusFilterActive(filter: 'all' | 'success' | 'error' | 'running'): boolean {
    return this.statusFilter() === filter;
  }

  getFilteredResults(): TestResult[] {
    const filter = this.statusFilter();
    const all = this.results();
    if (filter === 'all') {
      return all;
    }
    return all.filter(r => r.status === filter);
  }

  toggleResultDetails(result: TestResult): void {
    const current = new Set(this.expandedResults());
    if (current.has(result)) {
      current.delete(result);
    } else {
      current.add(result);
    }
    this.expandedResults.set(current);
  }

  isResultExpanded(result: TestResult): boolean {
    return this.expandedResults().has(result);
  }

  async runDynamicRequest(): Promise<void> {
    const ep = this.currentEndpoint;
    if (!ep) return;

    if (ep.method === 'SSE' || ep.path === '/api/vault/events') {
      this.runSSETest();
      return;
    }

    // Validate required params
    for (const p of (ep.pathParams || [])) {
      if (!this.paramValues()[p]?.trim()) {
        this.addResult({ endpoint: ep.path, method: ep.method, status: 'error', error: `Missing path param: ${p}`, timestamp: Date.now() });
        return;
      }
    }
    for (const q of (ep.query || [])) {
      if (q.required && !this.paramValues()[q.name]?.trim()) {
        this.addResult({ endpoint: ep.path, method: ep.method, status: 'error', error: `Missing query param: ${q.name}`, timestamp: Date.now() });
        return;
      }
    }

    const urlPath = this.replacePathParams(ep.path, this.paramValues());
    const qs = this.buildQueryString(ep.query, this.paramValues());
    const fullUrl = qs ? `${urlPath}?${qs}` : urlPath;

    let headers: Record<string, string> | undefined;
    if (this.headersText().trim() && this.headersText().trim() !== '{}') {
      try { headers = JSON.parse(this.headersText()); } catch (e: any) {
        this.addResult({ endpoint: fullUrl, method: ep.method, status: 'error', error: `Invalid headers JSON: ${e.message || e}`, timestamp: Date.now() });
        return;
      }
    }

    if (ep.contentType === 'binary') {
      if (!this.selectedFile) {
        this.addResult({ endpoint: fullUrl, method: ep.method, status: 'error', error: 'Please choose a file to upload', timestamp: Date.now() });
        return;
      }
      await this.runTest(ep.method, fullUrl, async () => {
        return this.http.put(fullUrl, this.selectedFile as any, {
          headers: { 'Content-Type': (this.selectedFile as File).type || 'application/octet-stream', ...(headers || {}) }
        }).toPromise();
      });
      return;
    }

    // Prepare body
    let body: any = undefined;
    let contentTypeHeader: Record<string, string> = {};
    if (ep.method === 'POST' || ep.method === 'PUT' || ep.method === 'PATCH') {
      if (ep.contentType === 'json') {
        const txt = this.bodyText();
        try { body = txt ? JSON.parse(txt) : {}; } catch (e: any) {
          this.addResult({ endpoint: fullUrl, method: ep.method, status: 'error', error: `Invalid JSON body: ${e.message || e}`, timestamp: Date.now() });
          return;
        }
        contentTypeHeader = { 'Content-Type': 'application/json; charset=utf-8' };
      } else if (ep.contentType === 'text') {
        body = this.bodyText();
        contentTypeHeader = { 'Content-Type': 'text/markdown; charset=utf-8' };
      }
    }

    const responseType = ep.responseType === 'text' ? 'text' : 'json';
    await this.runTest(ep.method, fullUrl, async () => {
      return this.http.request(ep.method, fullUrl, {
        body,
        headers: { ...(contentTypeHeader || {}), ...(headers || {}) },
        responseType: responseType as any
      }).toPromise();
    });
  }

  toggleFullscreen(): void {
    this.isFullscreen.update(v => !v);
  }

  async runHealthCheck(): Promise<void> {
    await this.runTest('GET', '/api/health', async () => {
      return this.http.get('/api/health').toPromise();
    });
  }

  async runVaultMetadata(): Promise<void> {
    await this.runTest('GET', '/api/vault/metadata', async () => {
      return this.http.get('/api/vault/metadata').toPromise();
    });
  }

  async runVaultPaginated(): Promise<void> {
    await this.runTest('GET', '/api/vault/metadata/paginated', async () => {
      return this.http.get('/api/vault/metadata/paginated').toPromise();
    });
  }

  async runFileRead(): Promise<void> {
    const path = this.testFilePath().trim();
    if (!path) return;

    await this.runTest('GET', `/api/files?path=${encodeURIComponent(path)}`, async () => {
      return this.http.get(`/api/files?path=${encodeURIComponent(path)}`, { responseType: 'text' }).toPromise();
    });
  }

  async runFileWrite(): Promise<void> {
    const path = this.testFilePath().trim();
    const content = this.testFileContent().trim();
    if (!path || !content) return;

    await this.runTest('PUT', `/api/files?path=${encodeURIComponent(path)}`, async () => {
      return this.http.put(`/api/files?path=${encodeURIComponent(path)}`, content, {
        headers: { 'Content-Type': 'text/markdown; charset=utf-8' }
      }).toPromise();
    });
  }

  async runFileDelete(): Promise<void> {
    const path = this.testFilePath().trim();
    if (!path) return;

    await this.runTest('DELETE', `/api/files?path=${encodeURIComponent(path)}`, async () => {
      return this.http.delete(`/api/files?path=${encodeURIComponent(path)}`).toPromise();
    });
  }

  async runTogglePublish(): Promise<void> {
    const noteId = this.testNoteId().trim();
    if (!noteId) return;

    await this.runTest('PUT', `/api/notes/${encodeURIComponent(noteId)}/states/publish`, async () => {
      return this.http.put(`/api/notes/${encodeURIComponent(noteId)}/states/publish`, { value: true }).toPromise();
    });
  }

  async runToggleFavorite(): Promise<void> {
    const noteId = this.testNoteId().trim();
    if (!noteId) return;

    await this.runTest('PUT', `/api/notes/${encodeURIComponent(noteId)}/states/favoris`, async () => {
      return this.http.put(`/api/notes/${encodeURIComponent(noteId)}/states/favoris`, { value: true }).toPromise();
    });
  }

  async runToggleDraft(): Promise<void> {
    const noteId = this.testNoteId().trim();
    if (!noteId) return;

    await this.runTest('PUT', `/api/notes/${encodeURIComponent(noteId)}/states/draft`, async () => {
      return this.http.put(`/api/notes/${encodeURIComponent(noteId)}/states/draft`, { value: true }).toPromise();
    });
  }

  runSSETest(): void {
    if (this.sseConnection) {
      this.sseConnection.close();
      this.sseConnection = null;
    }

    this.sseConnection = new EventSource('/api/vault/events');
    this.sseEvents.set([]);

    this.sseConnection.onopen = () => {
      this.addResult({
        endpoint: '/api/vault/events',
        method: 'SSE',
        status: 'success',
        response: 'SSE connection established',
        timestamp: Date.now()
      });
    };

    this.sseConnection.onmessage = (event) => {
      try {
        const data = JSON.parse(event.data);
        this.sseEvents.update(events => [{
          type: data.event || 'message',
          data,
          timestamp: new Date()
        }, ...events.slice(0, 9)]); // Keep last 10 events
      } catch (e) {
        // Ignore parse errors
      }
    };

    this.sseConnection.onerror = (error) => {
      this.addResult({
        endpoint: '/api/vault/events',
        method: 'SSE',
        status: 'error',
        error: 'SSE connection failed',
        timestamp: Date.now()
      });
      this.sseConnection?.close();
      this.sseConnection = null;
    };
  }

  async runSimulateEvent(): Promise<void> {
    await this.runTest('POST', '/api/simulate-event', async () => {
      return this.http.post('/api/simulate-event', { event: 'test', data: { message: 'Test event' } }).toPromise();
    });
  }

  async runLogTest(): Promise<void> {
    const testLogs = [
      { event: 'test_api_call', level: 'info', context: { route: '/api/test' }, data: { result: 'success' } },
      { event: 'test_error', level: 'error', context: { route: '/api/test' }, data: { error: 'Test error' } }
    ];

    await this.runTest('POST', '/api/log', async () => {
      return this.http.post('/api/log', testLogs[0]).toPromise();
    });

    await this.runTest('POST', '/api/logs', async () => {
      return this.http.post('/api/logs', testLogs[1]).toPromise();
    });
  }

  async runBatchTest(): Promise<void> {
    this.isRunning.set(true);

    try {
      // Health check
      await this.runHealthCheck();

      // Vault APIs
      await this.runVaultMetadata();
      await this.runVaultPaginated();

      // File operations (using a test file)
      this.testFilePath.set('test-file.md');
      this.testFileContent.set('# Test File\n\nThis is a test file for API testing.');
      await this.runFileWrite();
      await this.runFileRead();

      // State operations (using home note)
      this.testNoteId.set('home');
      await this.runTogglePublish();
      await this.runToggleFavorite();
      await this.runToggleDraft();

      // SSE
      this.runSSETest();

      // Logging
      await this.runLogTest();

      // Clean up
      await this.runFileDelete();

    } catch (error) {
      console.error('Batch test error:', error);
    } finally {
      this.isRunning.set(false);
    }
  }

  private async runTest(method: string, endpoint: string, operation: () => Promise<any>): Promise<void> {
    const startTime = Date.now();
    const result: TestResult = {
      endpoint,
      method,
      status: 'running',
      timestamp: startTime
    };

    this.results.update(results => [result, ...results]);

    try {
      const response = await operation();
      result.status = 'success';
      result.response = response;
    } catch (error: any) {
      result.status = 'error';
      result.error = error.message || error.toString();
    }

    result.duration = Date.now() - startTime;
    this.results.update(results => results.map(r => r === result ? { ...result } : r));
  }

  private addResult(result: TestResult): void {
    this.results.update(results => [result, ...results]);
  }

  clearResults(): void {
    this.results.set([]);
    this.sseEvents.set([]);
    if (this.sseConnection) {
      this.sseConnection.close();
      this.sseConnection = null;
    }
  }

  getResultClass(result: TestResult): string {
    return `result-item--${result.status}`;
  }
}