/**
 * Questions List UI
 *
 * UI компонент для списка вопросов.
 */

import appState from '../state/appState.js'
import { escapeHtml, formatTime, pluralize } from '../utils/format.utils.js'
import { setElementText, setElementHTML } from '../utils/dom.utils.js'

/**
 * Проверить наличие аннотаций в секции документов
 * @param {object} docsSection - Секция документов
 * @returns {boolean} True если есть аннотации
 */
export function hasAnnotationsInDocs(docsSection) {
  if (!docsSection) return false

  // Check research documents
  if (docsSection.research) {
    for (const docIndex in docsSection.research) {
      const doc = docsSection.research[docIndex]
      if (doc.issues?.length > 0 || doc.comment) {
        return true
      }
    }
  }

  // Check analytical_hub documents
  if (docsSection.analytical_hub) {
    for (const docIndex in docsSection.analytical_hub) {
      const doc = docsSection.analytical_hub[docIndex]
      if (doc.issues?.length > 0 || doc.comment) {
        return true
      }
    }
  }

  return false
}

/**
 * Отрендерить список вопросов
 */
export function render() {
  const container = document.getElementById('questions-list')
  const countElement = document.getElementById('questions-count')

  if (!container) {
    console.error('Questions list container not found')
    return
  }

  const env = appState.getCurrentEnv()
  const response = env.currentResponse

  if (!response || !response.answers || response.answers.length === 0) {
    setElementHTML(container, `
      <div class="empty-state">
        <div class="empty-state-icon">
          <span class="material-icons" style="font-size: inherit;">question_answer</span>
        </div>
        <div class="empty-state-text">Нет данных</div>
        <div class="empty-state-subtext">Отправьте запрос к RAG бэкенду</div>
      </div>
    `)

    if (countElement) {
      setElementText(countElement, '0 вопросов')
    }

    return
  }

  // Update count
  if (countElement) {
    const count = response.answers.length
    const text = `${count} ${pluralize(count, 'вопрос', 'вопроса', 'вопросов')}`
    setElementText(countElement, text)
  }

  // Render questions
  const html = response.answers.map((answer, index) => {
    const isActive = index === env.currentAnswerIndex
    const annotation = env.annotations[index]

    // Check for annotations in body sections
    const hasBodyAnnotations = annotation && (
      annotation.overall?.comment ||
      annotation.body_research?.issues?.length > 0 ||
      annotation.body_analytical_hub?.issues?.length > 0
    )

    // Check for annotations in documents
    const hasDocAnnotations = annotation && (
      hasAnnotationsInDocs(annotation.docs_from_vectorstore) ||
      hasAnnotationsInDocs(annotation.docs_to_llm)
    )

    const hasAnyAnnotations = hasBodyAnnotations || hasDocAnnotations

    // Get rating indicator
    const rating = annotation?.overall?.rating
    let ratingIndicator = ''

    if (rating === 'correct') {
      ratingIndicator = '<span class="material-icons" style="font-size: 18px; color: #4caf50;">check_circle</span>'
    } else if (rating === 'partial') {
      ratingIndicator = '<span class="material-icons" style="font-size: 18px; color: #ff9800;">error</span>'
    } else if (rating === 'incorrect') {
      ratingIndicator = '<span class="material-icons" style="font-size: 18px; color: #f44336;">cancel</span>'
    }

    // Get annotation bookmark indicator (separate from rating)
    const annotationIndicator = hasAnyAnnotations
      ? '<span class="material-icons color-warning" style="font-size: 18px;">bookmark</span>'
      : ''

    return `
      <div class="card card-clickable question-item ${isActive ? 'active' : ''}"
           data-index="${index}"
           onclick="window.selectAnswer(${index})">
        <div class="card-content">
          <div class="question-item-header">
            <div class="text-overline">#${index + 1}</div>
            <div style="display: flex; gap: 4px;">
              ${ratingIndicator}
              ${annotationIndicator}
            </div>
          </div>
          <div class="question-text">${escapeHtml(answer.question)}</div>
          <div class="question-meta">
            <span>${formatTime(answer.processing_time_sec)}</span>
          </div>
        </div>
      </div>
    `
  }).join('')

  setElementHTML(container, html)
}

/**
 * Выбрать ответ по индексу
 * @param {number} index - Индекс ответа
 * @param {Function} onSelect - Callback при выборе
 */
export function selectAnswer(index, onSelect) {
  const env = appState.getCurrentEnv()
  env.currentAnswerIndex = index

  // Re-render questions list to update active state
  render()

  // Call callback if provided
  if (typeof onSelect === 'function') {
    onSelect(index)
  }
}

// Export as default object
export default {
  render,
  selectAnswer,
  hasAnnotationsInDocs
}