async function api(path, options = {}) {
  const res = await fetch(path, {
    headers: { 'Content-Type': 'application/json', ...(options.headers || {}) },
    ...options
  });
  if (!res.ok) throw new Error(await res.text());
  return res.json();
}

const state = { projects: [], workspaces: [] };

async function init() {
  const me = await api('/api/me');
  document.getElementById('me').textContent = `${me.username} (${me.email || 'no email'})`;

  document.getElementById('workspaceForm').addEventListener('submit', createWorkspace);
  document.getElementById('createForm').addEventListener('submit', createProject);
  document.getElementById('refreshCaddyBtn').addEventListener('click', loadCaddyConfig);
  await refreshWorkspaces();
  await refreshProjects();
  await loadCaddyConfig();
}

async function refreshWorkspaces() {
  state.workspaces = await api('/api/workspaces');
  const select = document.getElementById('workspaceSelect');
  if (state.workspaces.length === 0) {
    select.innerHTML = '<option value="">Create a workspace first</option>';
    return;
  }
  select.innerHTML = state.workspaces.map((w) => (
    `<option value="${w.id}">${escapeHtml(w.name)} (${escapeHtml(w.unix_user)})</option>`
  )).join('');
}

async function refreshProjects() {
  state.projects = await api('/api/projects');
  renderProjects();
}

function renderProjects() {
  const root = document.getElementById('projects');
  if (state.projects.length === 0) {
    root.innerHTML = '<p class="muted">No projects yet.</p>';
    return;
  }

  root.innerHTML = '';
  state.projects.forEach((p) => {
    const div = document.createElement('article');
    div.className = 'project';
    div.innerHTML = `
      <h3>${escapeHtml(p.name)}</h3>
      <p class="meta">workspace: ${escapeHtml(p.workspace)} (${escapeHtml(p.unix_user)})</p>
      <p class="meta">slug: ${escapeHtml(p.slug)} | service: ${escapeHtml(p.service_name)}</p>
      <p class="meta">route host: ${escapeHtml(p.route_host || 'not set')}</p>
      <p class="meta">app url: ${p.app_url ? `<a class="link" href="${escapeHtml(p.app_url)}" target="_blank" rel="noreferrer">${escapeHtml(p.app_url)}</a>` : 'not set'}</p>
      <p class="meta">deploy webhook: <code>${escapeHtml(p.webhook_url || 'n/a')}</code></p>
      <p class="meta">provisioning: ${escapeHtml(p.provision_state || 'unknown')}${p.provision_error ? ` | error: ${escapeHtml(p.provision_error)}` : ''}</p>
      <p>${escapeHtml(p.description || '')}</p>
      ${p.repo_url ? `<p><a class="link" href="${p.repo_url}" target="_blank" rel="noreferrer">Open Repository</a></p>` : '<p class="muted">No repository URL set.</p>'}
      <div class="env-row">
        <input class="small" placeholder="ENV_KEY" data-k />
        <input class="small" placeholder="value" data-v />
        <button class="small" data-add>Add/Update Env</button>
        <button class="small" data-regen>Regenerate Service</button>
      </div>
      <div class="env-list muted" data-env>Loading env vars...</div>
      <div class="env-row">
        <button class="small" data-status>Refresh Status</button>
        <button class="small" data-logs>Load Logs</button>
        <button class="small" data-reprovision>Reprovision</button>
      </div>
      <div class="meta" data-status-out>status: loading...</div>
      <pre class="meta" data-logs-out style="white-space: pre-wrap; max-height: 220px; overflow: auto;">logs: not loaded</pre>
    `;

    div.querySelector('[data-add]').addEventListener('click', async () => {
      const key = div.querySelector('[data-k]').value.trim();
      const value = div.querySelector('[data-v]').value;
      await api(`/api/projects/${p.id}/env`, {
        method: 'POST',
        body: JSON.stringify({ key, value })
      });
      await loadEnvList(div, p.id);
    });

    div.querySelector('[data-regen]').addEventListener('click', async () => {
      await api(`/api/projects/${p.id}/service`, { method: 'POST' });
      alert('Service regenerated and systemctl --user reload attempted.');
    });
    div.querySelector('[data-status]').addEventListener('click', async () => {
      await loadStatus(div, p.id);
    });
    div.querySelector('[data-logs]').addEventListener('click', async () => {
      await loadLogs(div, p.id);
    });
    div.querySelector('[data-reprovision]').addEventListener('click', async () => {
      await api(`/api/projects/${p.id}/reprovision`, { method: 'POST' });
      await refreshProjects();
    });

    root.appendChild(div);
    loadEnvList(div, p.id);
    loadStatus(div, p.id);
  });
}

async function loadEnvList(projectNode, projectID) {
  const envs = await api(`/api/projects/${projectID}/env`);
  const envRoot = projectNode.querySelector('[data-env]');
  if (envs.length === 0) {
    envRoot.innerHTML = 'No env vars';
    return;
  }
  envRoot.innerHTML = envs.map((e) => {
    return `<div><code>${escapeHtml(e.key)}</code>=<code>${escapeHtml(e.value)}</code> <button class="small danger" data-del="${escapeHtml(e.key)}">Delete</button></div>`;
  }).join('');

  envRoot.querySelectorAll('[data-del]').forEach((btn) => {
    btn.addEventListener('click', async () => {
      const key = btn.getAttribute('data-del');
      await api(`/api/projects/${projectID}/env?key=${encodeURIComponent(key)}`, { method: 'DELETE' });
      await loadEnvList(projectNode, projectID);
    });
  });
}

async function loadStatus(projectNode, projectID) {
  const out = projectNode.querySelector('[data-status-out]');
  out.textContent = 'status: loading...';
  try {
    const s = await api(`/api/projects/${projectID}/status`);
    out.textContent = `status: ${s.active_state}/${s.sub_state} pid=${s.main_pid} result=${s.result || 'n/a'} exit=${s.exec_status}`;
  } catch (err) {
    out.textContent = `status error: ${err.message}`;
  }
}

async function loadLogs(projectNode, projectID) {
  const out = projectNode.querySelector('[data-logs-out]');
  out.textContent = 'loading logs...';
  try {
    const res = await api(`/api/projects/${projectID}/logs?lines=100`);
    out.textContent = res.logs || '(no logs)';
  } catch (err) {
    out.textContent = `logs error: ${err.message}`;
  }
}

async function createProject(e) {
  e.preventDefault();
  const form = e.target;
  const payload = {
    workspace_id: Number(form.workspace_id.value),
    name: form.name.value,
    description: form.description.value,
    repo_url: form.repo_url.value.trim(),
    repo_private: form.repo_private.checked
  };
  const msg = document.getElementById('createMsg');
  msg.textContent = 'Creating project...';
  try {
    await api('/api/projects', {
      method: 'POST',
      body: JSON.stringify(payload)
    });
    msg.textContent = 'Project created.';
    form.reset();
    form.repo_private.checked = true;
    await refreshProjects();
  } catch (err) {
    msg.textContent = `Error: ${err.message}`;
  }
}

async function createWorkspace(e) {
  e.preventDefault();
  const form = e.target;
  const payload = {
    name: form.name.value.trim(),
    unix_user: form.unix_user.value.trim()
  };
  const msg = document.getElementById('workspaceMsg');
  msg.textContent = 'Creating workspace...';
  try {
    await api('/api/workspaces', {
      method: 'POST',
      body: JSON.stringify(payload)
    });
    msg.textContent = 'Workspace created.';
    form.reset();
    await refreshWorkspaces();
  } catch (err) {
    msg.textContent = `Error: ${err.message}`;
  }
}

async function loadCaddyConfig() {
  const out = document.getElementById('caddyConfigOut');
  out.textContent = 'Loading Caddy config...';
  try {
    const cfg = await api('/api/caddy/config');
    out.textContent = cfg.content || JSON.stringify(cfg, null, 2);
  } catch (err) {
    out.textContent = `Error: ${err.message}`;
  }
}

function escapeHtml(s) {
  return String(s)
    .replaceAll('&', '&amp;')
    .replaceAll('<', '&lt;')
    .replaceAll('>', '&gt;')
    .replaceAll('"', '&quot;')
    .replaceAll("'", '&#039;');
}

init().catch((err) => {
  document.getElementById('projects').innerHTML = `<p class="muted">Failed to load: ${escapeHtml(err.message)}</p>`;
});