// Default Settings
const DEFAULT_SETTINGS = {
  serverUrl: 'http://localhost:8017',
  isRunning: false,
  promptSel: '',
  submitSel: '',
  resultSel: '',
  autoStart: false,
  pollInterval: 4000,
  logs: []
};

// UI Elements
const serverUrlInput = document.getElementById('server-url');
const toggleBtn = document.getElementById('toggle-btn');
const globalStatus = document.getElementById('global-status');
const statusLabel = globalStatus.querySelector('.status-label');
const logConsole = document.getElementById('log-console');
const clearLogsBtn = document.getElementById('clear-logs');
const autoStartInput = document.getElementById('auto-start');

// Advanced inputs
const selPromptInput = document.getElementById('sel-prompt');
const selGenerateInput = document.getElementById('sel-generate');
const selModelInput = document.getElementById('sel-model');
const pollIntervalInput = document.getElementById('poll-interval');

// Load settings on startup
chrome.storage.local.get(DEFAULT_SETTINGS, (settings) => {
  serverUrlInput.value = settings.serverUrl;
  autoStartInput.checked = !!settings.autoStart;
  selPromptInput.value = settings.promptSel;
  selGenerateInput.value = settings.submitSel;
  selModelInput.value = settings.resultSel;
  pollIntervalInput.value = settings.pollInterval;
  
  updateToggleUI(settings.isRunning);
  renderLogs(settings.logs);
  updateStatusUI(settings.isRunning ? 'running' : 'idle');
});

// Helper: Append log to UI console
function appendLogToUI(log) {
  const entry = document.createElement('div');
  entry.className = `log-entry ${log.level}-log`;
  
  const time = new Date(log.timestamp).toLocaleTimeString([], { hour: '2-digit', minute: '2-digit', second: '2-digit' });
  entry.innerText = `[${time}] ${log.text}`;
  
  logConsole.appendChild(entry);
  logConsole.scrollTop = logConsole.scrollHeight;
}

// Render entire log list
function renderLogs(logs) {
  logConsole.innerHTML = '';
  if (!logs || logs.length === 0) {
    const entry = document.createElement('div');
    entry.className = 'log-entry system-log';
    entry.innerText = '[System] No logs yet. Click Start to run.';
    logConsole.appendChild(entry);
    return;
  }
  logs.forEach(appendLogToUI);
}

// Update Toggle Button Style
function updateToggleUI(isRunning) {
  if (isRunning) {
    toggleBtn.textContent = 'Stop Automation';
    toggleBtn.className = 'btn btn-primary stop-state';
  } else {
    toggleBtn.textContent = 'Start Automation';
    toggleBtn.className = 'btn btn-primary start-state';
  }
}

// Update Global Status indicator
function updateStatusUI(status) {
  globalStatus.className = 'status-indicator';
  if (status === 'running') {
    globalStatus.classList.add('active');
    statusLabel.textContent = 'Running';
  } else if (status === 'idle') {
    statusLabel.textContent = 'Idle';
  } else if (status === 'error') {
    globalStatus.classList.add('error');
    statusLabel.textContent = 'Error';
  } else if (status === 'working') {
    globalStatus.classList.add('active');
    statusLabel.textContent = 'Generating...';
  }
}

// Input Change Handlers
function saveSetting(key, value) {
  chrome.storage.local.set({ [key]: value });
}

serverUrlInput.addEventListener('change', (e) => saveSetting('serverUrl', e.target.value));
autoStartInput.addEventListener('change', (e) => saveSetting('autoStart', e.target.checked));
selPromptInput.addEventListener('change', (e) => saveSetting('promptSel', e.target.value));
selGenerateInput.addEventListener('change', (e) => saveSetting('submitSel', e.target.value));
selModelInput.addEventListener('change', (e) => saveSetting('resultSel', e.target.value));
pollIntervalInput.addEventListener('change', (e) => saveSetting('pollInterval', parseInt(e.target.value, 10) || 4000));

// Clear Logs
clearLogsBtn.addEventListener('click', () => {
  chrome.storage.local.set({ logs: [] }, () => {
    logConsole.innerHTML = '';
  });
});

// Toggle Run Loop
toggleBtn.addEventListener('click', () => {
  chrome.storage.local.get('isRunning', (res) => {
    const nextState = !res.isRunning;
    chrome.storage.local.set({ isRunning: nextState }, () => {
      updateToggleUI(nextState);
      updateStatusUI(nextState ? 'running' : 'idle');
      
      // Log event
      const logMsg = nextState ? 'Automation started.' : 'Automation stopped.';
      addSystemLog(logMsg);
    });
  });
});

// Add System Log Helper
function addSystemLog(text) {
  chrome.storage.local.get({ logs: [] }, (res) => {
    const newLog = {
      level: 'system',
      text: text,
      timestamp: Date.now()
    };
    const updated = [...res.logs, newLog].slice(-100); // limit to 100 logs
    chrome.storage.local.set({ logs: updated }, () => {
      appendLogToUI(newLog);
    });
  });
}

// Listen for storage changes to sync UI across multiple popup openings
chrome.storage.onChanged.addListener((changes, area) => {
  if (area === 'local') {
    if (changes.isRunning) {
      updateToggleUI(changes.isRunning.newValue);
      updateStatusUI(changes.isRunning.newValue ? 'running' : 'idle');
    }
    if (changes.status) {
      updateStatusUI(changes.status.newValue);
    }
    if (changes.logs) {
      // Re-render logs if they changed (e.g. from background content script)
      renderLogs(changes.logs.newValue);
    }
  }
});