// Global event wiring — toggle switches, settings buttons, and per-page setup calls.
// Depends on: all page modules

function setupEvents() {
  // Guard against duplicate listener registration if setupEvents() is called
  // more than once (e.g. after a hot-reload). Without this, anonymous listeners
  // accumulate and each toggle fires N times per click after N calls.
  if (document._holesailEventsSetup) return;
  document._holesailEventsSetup = true;

  // Restore saved theme before any toggle listeners fire
  const savedTheme = localStorage.getItem('holesail-theme');
  if (savedTheme === 'light') document.documentElement.setAttribute('data-theme', 'light');

  // Toggle switches
  document.querySelectorAll('.toggle').forEach(toggle => {
    toggle.addEventListener('click', () => {
      toggle.classList.toggle('active');
      if (toggle.id === 'toggleTheme') {
        const isLight = toggle.classList.contains('active');
        document.documentElement.setAttribute('data-theme', isLight ? 'light' : 'dark');
        localStorage.setItem('holesail-theme', isLight ? 'light' : 'dark');
      }
    });
  });

  // Save settings
  $('btnSaveSettings')?.addEventListener('click', saveSettings);

  // Reset settings to defaults
  $('btnResetSettings')?.addEventListener('click', () => {
    settings = { ...SETTINGS_DEFAULTS };
    chrome.runtime.sendMessage(
      { target: 'holesail-native', action: 'send', payload: { type: 'updateSettings', payload: { ...settings } } },
      (response) => {
        if (response && response.settings) settings = { ...SETTINGS_DEFAULTS, ...response.settings };
        updateSettingsUI();
        showToast('Settings reset to defaults', 'success');
      }
    );
  });

  // Export configuration
  $('btnExportConfig')?.addEventListener('click', () => {
    chrome.runtime.sendMessage(
      { target: 'holesail-native', action: 'send', payload: { type: 'getState', payload: {} } },
      (response) => {
        if (chrome.runtime.lastError || !response || !response.ok) {
          showToast('Export failed: could not read state', 'error');
          return;
        }
        const state = response;
        const exportData = {
          exportedAt: new Date().toISOString(),
          version: 1,
          virtualHosts: (state.virtualHosts || []).map(v => ({ hostname: v.hostname, hsUrl: v.hsUrl })),
          serviceTunnels: (state.serviceTunnels || []).map(t => ({ label: t.label, hsUrl: t.hsUrl, localPort: t.localPort })),
          sshConnections: (state.sshConnections || []).map(s => ({ label: s.label, hsUrl: s.hsUrl, username: s.username })),
          rdpConnections: (state.rdpConnections || []).map(r => ({ label: r.label, hsUrl: r.hsUrl, type: r.type, port: r.port, width: r.width, height: r.height, username: r.username }))
        };
        const blob = new Blob([JSON.stringify(exportData, null, 2)], { type: 'application/json' });
        const url = URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.href = url;
        a.download = 'holesail-config-' + new Date().toISOString().slice(0, 10) + '.json';
        a.click();
        setTimeout(() => URL.revokeObjectURL(url), 5000);
        showToast('Configuration exported', 'success');
      }
    );
  });

  // Import configuration
  $('importConfigFile')?.addEventListener('change', (e) => {
    const file = e.target.files[0];
    if (!file) return;
    const reader = new FileReader();
    reader.onload = (ev) => {
      let data;
      try { data = JSON.parse(ev.target.result); } catch (_) { showToast('Invalid JSON file', 'error'); return; }
      if (!data || typeof data !== 'object') { showToast('Invalid config file', 'error'); return; }

      const vhosts = Array.isArray(data.virtualHosts) ? data.virtualHosts : [];
      const svcTunnels = Array.isArray(data.serviceTunnels) ? data.serviceTunnels : [];
      const sshConns = Array.isArray(data.sshConnections) ? data.sshConnections : [];
      const rdpConns = Array.isArray(data.rdpConnections) ? data.rdpConnections : [];

      let pending = 0;
      let done = 0;
      function onDone() {
        done++;
        if (done >= pending) {
          showToast('Import complete', 'success');
          e.target.value = '';
          if (typeof refreshAll === 'function') refreshAll();
        }
      }

      for (const v of vhosts) {
        if (!v.hostname || !v.hsUrl) continue;
        pending++;
        chrome.runtime.sendMessage(
          { target: 'holesail-native', action: 'send', payload: { type: 'setVirtualHost', payload: { hostname: v.hostname, hsUrl: v.hsUrl } } },
          () => onDone()
        );
      }
      for (const t of svcTunnels) {
        if (!t.hsUrl) continue;
        pending++;
        chrome.runtime.sendMessage(
          { target: 'holesail-native', action: 'send', payload: { type: 'startServiceTunnel', payload: { label: t.label || '', hsUrl: t.hsUrl, localPort: t.localPort } } },
          () => onDone()
        );
      }

      if (sshConns.length || rdpConns.length) {
        pending++;
        chrome.runtime.sendMessage(
          { target: 'holesail-native', action: 'send', payload: { type: 'getState', payload: {} } },
          (response) => {
            void chrome.runtime.lastError;
            const existing = response || {};
            const mergedSsh = [...(existing.sshConnections || [])];
            for (const s of sshConns) {
              if (!s.hsUrl) continue;
              if (!mergedSsh.find(x => x.hsUrl === s.hsUrl && x.username === s.username)) {
                mergedSsh.push({ id: 'ssh-' + Date.now() + '-' + Math.random().toString(36).slice(2), label: s.label || '', hsUrl: s.hsUrl, username: s.username || '' });
              }
            }
            const mergedRdp = [...(existing.rdpConnections || [])];
            for (const r of rdpConns) {
              if (!r.hsUrl) continue;
              if (!mergedRdp.find(x => x.hsUrl === r.hsUrl)) {
                mergedRdp.push({ id: 'rdp-' + Date.now() + '-' + Math.random().toString(36).slice(2), label: r.label || '', hsUrl: r.hsUrl, type: r.type || 'vnc', port: r.port || 5900, width: r.width || 1280, height: r.height || 720, username: r.username || '' });
              }
            }
            chrome.runtime.sendMessage(
              { target: 'holesail-native', action: 'send', payload: { type: 'setSshConnections', payload: { connections: mergedSsh } } },
              () => {
                void chrome.runtime.lastError;
                chrome.runtime.sendMessage(
                  { target: 'holesail-native', action: 'send', payload: { type: 'setRdpConnections', payload: { connections: mergedRdp } } },
                  () => { void chrome.runtime.lastError; onDone(); }
                );
              }
            );
          }
        );
      }

      if (pending === 0) {
        showToast('Nothing to import', 'default');
        e.target.value = '';
      }
    };
    reader.readAsText(file);
  });

  // Peer Lookup
  function runPeerLookup() {
    const input = $('peerLookupInput');
    const resultEl = $('peerLookupResult');
    if (!input || !resultEl) return;
    const key = input.value.trim();
    if (!key) { showToast('Enter an hs:// key', 'default'); return; }
    resultEl.style.display = 'block';
    resultEl.innerHTML = '<span style="color:var(--text3);">Looking up…</span>';
    chrome.runtime.sendMessage(
      { target: 'holesail-native', action: 'send', payload: { type: 'lookup', payload: { hsUrl: key } } },
      (response) => {
        if (chrome.runtime.lastError || !response) {
          resultEl.innerHTML = '<span style="color:var(--red);">Lookup failed: ' + (chrome.runtime.lastError?.message || 'No response') + '</span>';
          return;
        }
        if (!response.ok) {
          resultEl.innerHTML = '<span style="color:var(--red);">Error: ' + escapeHtml(response.error || 'Unknown error') + '</span>';
          return;
        }
        const peers = response.peers || [];
        if (peers.length === 0) {
          resultEl.innerHTML = '<span style="color:var(--amber);">No peers found for this key.</span>';
        } else {
          resultEl.innerHTML = '<span style="color:var(--green);">Found ' + peers.length + ' peer(s):</span> ' +
            peers.map(p => '<code style="font-family:\'JetBrains Mono\',monospace;font-size:11px;color:var(--cyan);">' + escapeHtml(String(p)) + '</code>').join(', ');
        }
      }
    );
  }
  $('btnPeerLookup')?.addEventListener('click', runPeerLookup);
  $('peerLookupInput')?.addEventListener('keydown', (e) => { if (e.key === 'Enter') runPeerLookup(); });

  setupVirtualHostEvents();
  setupServerEvents();
  setupServiceTunnelEvents();
  setupLogsEvents();
}