import { AuthenticatedLayout } from "./AuthenticatedLayout.tsx";

export const PasskeysPage = ({
  passkeys,
  isAdmin = false,
}: {
  passkeys: any[];
  isAdmin?: boolean;
}) => {
  return (
    <AuthenticatedLayout
      title="Passkeys"
      currentPath="/dashboard/passkeys"
      isAdmin={isAdmin}
    >
      <div class="card">
        <div
          style={{
            display: "flex",
            justifyContent: "space-between",
            alignItems: "center",
            marginBottom: "1rem",
          }}
        >
          <h2 style={{ margin: 0, border: "none", padding: 0 }}>
            Registered Passkeys
          </h2>
          <button type="button" id="addPasskeyBtn" class="btn-primary">
            + Add New Passkey
          </button>
        </div>
        <p
          style={{
            color: "#6c757d",
            fontSize: "0.9rem",
            marginBottom: "1.5rem",
          }}
        >
          Manage your registered hardware tokens. We recommend having at least
          two registered.
        </p>

        <div
          id="addPasskeyContainer"
          style={{
            display: "none",
            marginBottom: "1.5rem",
            padding: "1rem",
            background: "#f8f9fa",
            borderRadius: "6px",
            border: "1px solid #dee2e6",
          }}
        >
          <h3 style={{ marginTop: 0, fontSize: "1.1rem" }}>
            Register New Passkey
          </h3>
          <p style={{ fontSize: "0.9rem", color: "#6c757d" }}>
            Please insert your new hardware token and follow the prompts.
          </p>
          <div
            id="addPasskeyStatus"
            style={{ marginBottom: "1rem", fontSize: "0.9rem" }}
          >
          </div>
          <div style={{ display: "flex", gap: "1rem" }}>
            <button
              type="button"
              id="confirmAddPasskeyBtn"
              class="btn-primary"
              style={{ background: "#28a745" }}
            >
              Start Registration
            </button>
            <button
              type="button"
              id="cancelAddPasskeyBtn"
              class="btn-danger"
              style={{ background: "#6c757d" }}
            >
              Cancel
            </button>
          </div>
        </div>

        <div class="table-container">
          <table>
            <thead>
              <tr>
                <th>ID</th>
                <th>Uses (Counter)</th>
                <th>Action</th>
              </tr>
            </thead>
            <tbody>
              {passkeys.length === 0
                ? (
                  <tr>
                    <td
                      colSpan={3}
                      style={{ textAlign: "center", padding: "2rem" }}
                    >
                      No passkeys found.
                    </td>
                  </tr>
                )
                : (
                  passkeys.map((passkey) => (
                    <tr key={passkey.id}>
                      <td>
                        <code
                          style={{
                            background: "#f1f3f5",
                            padding: "0.2rem 0.4rem",
                            borderRadius: "4px",
                          }}
                        >
                          {passkey.id.split("-")[0]}...
                        </code>
                      </td>
                      <td>{passkey.counter}</td>
                      <td>
                        <button
                          type="button"
                          class="btn-danger revoke-btn"
                          data-passkey-id={passkey.id}
                          disabled={passkeys.length <= 1}
                          title={passkeys.length <= 1
                            ? "Cannot remove last passkey"
                            : "Remove"}
                          style={passkeys.length <= 1
                            ? { opacity: 0.5, cursor: "not-allowed" }
                            : {}}
                        >
                          Remove
                        </button>
                      </td>
                    </tr>
                  ))
                )}
            </tbody>
          </table>
          {passkeys.length <= 1 && (
            <p
              style={{
                fontSize: "0.85rem",
                color: "#dc3545",
                marginTop: "1rem",
              }}
            >
              * You must register another passkey before you can remove your
              only remaining one.
            </p>
          )}
        </div>
      </div>

      <script
        dangerouslySetInnerHTML={{
          __html: `
          // Revoke Passkey Logic
          document.querySelectorAll('.revoke-btn').forEach(btn => {
            btn.addEventListener('click', async (e) => {
              if (e.target.disabled) return;
              if (!confirm('Are you sure you want to remove this passkey? This action cannot be undone.')) return;

              const passkeyId = e.target.getAttribute('data-passkey-id');
              const originalText = e.target.textContent;
              e.target.textContent = 'Removing...';
              e.target.disabled = true;

              try {
                const res = await fetch(\`/api/passkeys/\${passkeyId}\`, {
                  method: 'DELETE'
                });

                if (res.ok) {
                  window.location.reload();
                } else {
                  const data = await res.json();
                  alert(data.error || 'Failed to remove passkey');
                  e.target.textContent = originalText;
                  e.target.disabled = false;
                }
              } catch (err) {
                alert('An error occurred');
                e.target.textContent = originalText;
                e.target.disabled = false;
              }
            });
          });

          // Add Passkey Logic
          const addContainer = document.getElementById('addPasskeyContainer');
          const addBtn = document.getElementById('addPasskeyBtn');
          const cancelBtn = document.getElementById('cancelAddPasskeyBtn');
          const confirmBtn = document.getElementById('confirmAddPasskeyBtn');
          const statusDiv = document.getElementById('addPasskeyStatus');

          addBtn.addEventListener('click', () => {
            addContainer.style.display = 'block';
            addBtn.style.display = 'none';
          });

          cancelBtn.addEventListener('click', () => {
            addContainer.style.display = 'none';
            addBtn.style.display = 'block';
            statusDiv.textContent = '';
          });

          confirmBtn.addEventListener('click', async () => {
            confirmBtn.disabled = true;
            statusDiv.textContent = 'Setting up passkey... Follow the prompt on your device.';
            statusDiv.style.color = '#007bff';

            try {
              // 1. Fetch challenge
              const resp = await fetch("/api/passkeys/register/challenge", {
                method: "POST",
              });
              const data = await resp.json();

              if (!resp.ok) {
                statusDiv.textContent = data.error || "Failed to get registration challenge";
                statusDiv.style.color = 'red';
                confirmBtn.disabled = false;
                return;
              }

              // 2. Pass challenge to authenticator
              const { startRegistration } = SimpleWebAuthnBrowser;
              let attResp;
              try {
                attResp = await startRegistration(data.options);
              } catch (error) {
                statusDiv.textContent = error.message || "Registration failed on device";
                statusDiv.style.color = 'red';
                confirmBtn.disabled = false;
                return;
              }

              // 3. Send response back to verify
              const verificationResp = await fetch("/api/passkeys/register/verify", {
                method: "POST",
                headers: {
                  "Content-Type": "application/json",
                },
                body: JSON.stringify({
                  response: attResp,
                }),
              });

              const verificationJSON = await verificationResp.json();

              if (verificationJSON.success) {
                statusDiv.textContent = "Passkey added successfully! Reloading...";
                statusDiv.style.color = 'green';
                setTimeout(() => window.location.reload(), 1000);
              } else {
                statusDiv.textContent = verificationJSON.error || "Registration verification failed";
                statusDiv.style.color = 'red';
                confirmBtn.disabled = false;
              }
            } catch (err) {
              console.error(err);
              statusDiv.textContent = 'An unexpected error occurred.';
              statusDiv.style.color = 'red';
              confirmBtn.disabled = false;
            }
          });
        `,
        }}
      >
      </script>
    </AuthenticatedLayout>
  );
};