// Accordance API Integration Module
// This module provides functions to query Accordance Bible Software via OSC
// for enhanced word information to display in popup cards

/**
 * Query Accordance for word information
 * @param {string} word - The word to look up
 * @param {string} reference - Optional Bible reference (e.g., "John 3:16")
 * @returns {Promise<Object>} Enhanced word information from Accordance
 */
export async function queryAccordanceWord(word, reference = null) {
  try {
    // Build request payload
    const payload = {
      word: word,
      reference: reference || getCurrentReference()
    };

    console.log('[Accordance API] Querying word:', payload);

    // Send request to server endpoint which proxies to Accordance via OSC
    const response = await fetch('/api/accordance/word', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify(payload)
    });

    console.log('[Accordance API] Response status:', response.status);

    if (!response.ok) {
      const errorData = {
        success: false,
        error: `HTTP ${response.status}`,
        word: word,
        reference: reference
      };
      console.warn('[Accordance API] Response not OK:', errorData);
      return errorData;
    }

    const data = await response.json();
    console.log('[Accordance API] Response data:', data);
    return data;
  } catch (error) {
    console.warn('[Accordance API] Failed to query word:', word, error);
    // Return error object instead of null so enhancement function can process it
    return {
      success: false,
      error: error.message || 'Network error',
      word: word,
      reference: reference
    };
  }
}

/**
 * Get current Bible reference from active tab
 * @returns {string|null} Current reference or null
 */
function getCurrentReference() {
  try {
    const activeTab = window.bibleApp?.tabs?.find(t => t.id === window.bibleApp?.activeTabId);
    if (!activeTab) return null;

    const book = activeTab.book || '';
    const chapter = activeTab.chapter || '';
    const verse = activeTab.verse || '';

    if (book && chapter) {
      return verse ? `${book} ${chapter}:${verse}` : `${book} ${chapter}`;
    }
    return null;
  } catch (_) {
    return null;
  }
}

/**
 * Enhance word info object with Accordance data
 * @param {Object} wordInfo - Base word info object
 * @param {string} word - The word being looked up
 * @param {string} reference - Optional Bible reference
 * @returns {Promise<Object>} Enhanced word info with Accordance data
 */
export async function enhanceWordInfoWithAccordance(wordInfo, word, reference = null) {
  try {
    console.log('[Accordance API] Enhancing word info for:', word, 'reference:', reference);
    const accordanceData = await queryAccordanceWord(word, reference);
    console.log('[Accordance API] Received data:', accordanceData);
    
    // Merge Accordance data into word info
    const enhanced = { ...wordInfo };

    // Always add Accordance section - this ensures it shows up in the popup
    if (!accordanceData) {
      // No response at all
      enhanced.accordance = {
        available: true,
        attempted: true,
        error: 'No response from Accordance API',
        note: 'Accordance integration attempted but no response received'
      };
      console.log('[Accordance API] No response data, adding error info');
    } else if (accordanceData.success) {
      // Success - add all the data
      enhanced.accordance = {
        available: true,
        strongs: accordanceData.strongs || null,
        lexicalForm: accordanceData.lexicalForm || null,
        morphology: accordanceData.morphology || null,
        definition: accordanceData.definition || null,
        usage: accordanceData.usage || null,
        crossReferences: accordanceData.crossReferences || [],
        commentaries: accordanceData.commentaries || [],
        originalLanguage: accordanceData.originalLanguage || null,
        note: accordanceData.note || null
      };
      console.log('[Accordance API] Enhanced wordInfo with Accordance data:', enhanced.accordance);
    } else {
      // Failed - still show section with error
      enhanced.accordance = {
        available: true,
        attempted: true,
        error: accordanceData.error || 'Accordance query failed',
        note: accordanceData.note || 'Accordance integration attempted but no data received'
      };
      console.log('[Accordance API] Accordance query failed, adding error info:', enhanced.accordance);
    }
    
    console.log('[Accordance API] Final enhanced wordInfo:', enhanced);

    // Enhance Greek data if available (guard derefs: enhanced.greek may be undefined)
    if (accordanceData.greek && !(enhanced.greek && enhanced.greek.text)) {
      enhanced.greek = {
        text: accordanceData.greek.text || (enhanced.greek && enhanced.greek.text),
        transliteration: accordanceData.greek.transliteration || (enhanced.greek && enhanced.greek.transliteration),
        meaning: accordanceData.greek.meaning || (enhanced.greek && enhanced.greek.meaning)
      };
    }

    // Enhance Hebrew data if available (guard derefs: enhanced.hebrew may be undefined)
    if (accordanceData.hebrew && !(enhanced.hebrew && enhanced.hebrew.text)) {
      enhanced.hebrew = {
        text: accordanceData.hebrew.text || (enhanced.hebrew && enhanced.hebrew.text),
        transliteration: accordanceData.hebrew.transliteration || (enhanced.hebrew && enhanced.hebrew.transliteration),
        meaning: accordanceData.hebrew.meaning || (enhanced.hebrew && enhanced.hebrew.meaning)
      };
    }

    return enhanced;
  } catch (error) {
    console.warn('[Accordance API] Failed to enhance word info:', error);
    return wordInfo;
  }
}

/**
 * Check if Accordance integration is available
 * @returns {Promise<boolean>} True if Accordance is available
 */
export async function checkAccordanceAvailability() {
  try {
    const response = await fetch('/api/accordance/status');
    if (!response.ok) {
      console.log('[Accordance API] Status check failed:', response.status);
      // Still return true to attempt integration (graceful fallback)
      return true;
    }
    const data = await response.json();
    const available = data.available === true || data.configured === true || data.oscModuleInstalled === true;
    console.log('[Accordance API] Availability check:', available, data);
    return available;
  } catch (error) {
    console.warn('[Accordance API] Status check error:', error);
    // Return true to attempt integration anyway (will gracefully handle errors)
    return true;
  }
}

// Make functions available globally for backward compatibility
if (typeof window !== 'undefined') {
  window.queryAccordanceWord = queryAccordanceWord;
  window.enhanceWordInfoWithAccordance = enhanceWordInfoWithAccordance;
  window.checkAccordanceAvailability = checkAccordanceAvailability;
  
  // Also expose via window.accordance for namespacing
  window.accordance = {
    queryWord: queryAccordanceWord,
    enhanceWordInfo: enhanceWordInfoWithAccordance,
    checkAvailability: checkAccordanceAvailability
  };
}