---
import type { Event } from '../../lib/db';
import { fmtDateTime } from '../../lib/markdown';

interface Props {
  events: Event[];
  editing: Event | null;
  viewing: Event | null;
  viewingRsvps: { going: number; interested: number; declined: number } | null;
}

const { events, editing, viewing, viewingRsvps } = Astro.props;

const KIND_LABEL = {
  dinner: 'Dinner',
  office_hours: 'Office hours',
  summit: 'Summit',
  virtual: 'Virtual',
} as const;

function toInputValue(sql: string | null | undefined): string {
  if (!sql) return '';
  return sql.replace(' ', 'T').slice(0, 16);
}

const formAction = editing ? 'update_event' : 'create_event';
---
<div class="tab-content">

  {viewing && viewingRsvps ? (
    <section class="section">
      <a href="/admin?tab=events" class="back-link label-sm">← Back to events</a>
      <h2 class="label-sm section-heading">RSVPs — {viewing.title}</h2>
      <p class="body-sm muted">{fmtDateTime(viewing.starts_at)} · {viewing.location}</p>
      <dl class="rsvp-summary">
        <div><dt class="label-sm">Going</dt><dd class="rsvp-count">{viewingRsvps.going}</dd></div>
        <div><dt class="label-sm">Interested</dt><dd class="rsvp-count">{viewingRsvps.interested}</dd></div>
        <div><dt class="label-sm">Declined</dt><dd class="rsvp-count">{viewingRsvps.declined}</dd></div>
      </dl>
    </section>
  ) : (
    <>
      <section class="section">
        <h2 class="label-sm section-heading">{editing ? 'Edit event' : 'New event'}</h2>
        <form method="POST" class="invite-form" novalidate>
          <input type="hidden" name="action" value={formAction} />
          {editing && <input type="hidden" name="event_id" value={editing.id} />}

          <div class="form-grid">
            <div class="field">
              <label for="title" class="label-sm field-label">Title</label>
              <input type="text" id="title" name="title" class="input body-md" required value={editing?.title ?? ''} />
            </div>
            <div class="field">
              <label for="slug" class="label-sm field-label">Slug (URL)</label>
              <input type="text" id="slug" name="slug" class="input body-md" required value={editing?.slug ?? ''} readonly={!!editing} />
            </div>
            <div class="field">
              <label for="kind" class="label-sm field-label">Kind</label>
              <select id="kind" name="kind" class="select body-md" required>
                <option value="dinner"       selected={editing?.kind === 'dinner'}>Dinner</option>
                <option value="office_hours" selected={editing?.kind === 'office_hours'}>Office hours</option>
                <option value="summit"       selected={editing?.kind === 'summit'}>Summit</option>
                <option value="virtual"      selected={editing?.kind === 'virtual'}>Virtual</option>
              </select>
            </div>
            <div class="field">
              <label for="location" class="label-sm field-label">Location</label>
              <input type="text" id="location" name="location" class="input body-md" value={editing?.location ?? ''} />
            </div>
            <div class="field">
              <label for="starts_at" class="label-sm field-label">Starts at (UTC)</label>
              <input type="datetime-local" id="starts_at" name="starts_at" class="input body-md" required value={toInputValue(editing?.starts_at)} />
            </div>
            <div class="field">
              <label for="ends_at" class="label-sm field-label">Ends at (optional)</label>
              <input type="datetime-local" id="ends_at" name="ends_at" class="input body-md" value={toInputValue(editing?.ends_at)} />
            </div>
            <div class="field">
              <label for="capacity" class="label-sm field-label">Capacity (optional)</label>
              <input type="number" id="capacity" name="capacity" class="input body-md" value={editing?.capacity ?? ''} />
            </div>
            <div class="field">
              <label for="photo_url" class="label-sm field-label">Photo URL (optional, for past events)</label>
              <input type="text" id="photo_url" name="photo_url" class="input body-md" value={editing?.photo_url ?? ''} />
            </div>
          </div>

          <div class="field">
            <label for="description" class="label-sm field-label">Description</label>
            <textarea id="description" name="description" class="input body-md" rows="3">{editing?.description ?? ''}</textarea>
          </div>

          <div class="form-actions">
            <button type="submit" class="btn-primary label-sm">{editing ? 'Save changes' : 'Create event'}</button>
            {editing && <a href="/admin?tab=events" class="action-link label-sm">Cancel</a>}
          </div>
        </form>
      </section>

      <section class="section">
        <h2 class="label-sm section-heading">All events</h2>
        {events.length === 0 ? (
          <p class="body-sm empty-msg">No events yet.</p>
        ) : (
          <table class="data-table">
            <thead>
              <tr>
                <th class="label-sm">Title</th>
                <th class="label-sm">Kind</th>
                <th class="label-sm">When</th>
                <th class="label-sm">Location</th>
                <th class="label-sm">Actions</th>
              </tr>
            </thead>
            <tbody>
              {events.map(ev => (
                <tr>
                  <td class="body-sm">{ev.title}</td>
                  <td class="body-sm muted">{KIND_LABEL[ev.kind]}</td>
                  <td class="body-sm muted">{fmtDateTime(ev.starts_at)}</td>
                  <td class="body-sm muted">{ev.location || '—'}</td>
                  <td class="action-cell">
                    <a href={`/admin?tab=events&view=${ev.id}`} class="action-link label-sm">RSVPs</a>
                    <a href={`/admin?tab=events&edit=${ev.id}`} class="action-link label-sm">Edit</a>
                    <form method="POST" class="inline-form">
                      <input type="hidden" name="action" value="delete_event" />
                      <input type="hidden" name="event_id" value={ev.id} />
                      <button type="submit" class="danger-btn label-sm" onclick="return confirm('Delete this event?')">Delete</button>
                    </form>
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
        )}
      </section>
    </>
  )}

</div>

<style>
  .back-link {
    color: var(--on-surface-muted);
    text-decoration: none;
    border-bottom: none;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    align-self: flex-start;
  }
  .back-link:hover { color: var(--on-surface-variant); border-bottom: none; }

  .rsvp-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin: var(--space-4) 0 0;
  }
  .rsvp-summary div {
    background: var(--surface-container-low);
    padding: var(--space-5);
    border-radius: var(--radius-md);
  }
  .rsvp-summary dt {
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--on-surface-muted);
    margin: 0 0 var(--space-2) 0;
  }
  .rsvp-summary dd {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--on-surface);
    margin: 0;
  }

  .form-actions { display: flex; gap: var(--space-3); align-items: center; }

  .action-cell {
    display: flex;
    gap: var(--space-3);
    align-items: center;
    flex-wrap: wrap;
  }
  .action-link {
    background: none;
    border: none;
    color: var(--on-surface-muted);
    text-decoration: none;
    border-bottom: none;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: color var(--duration-fast) var(--ease-standard);
    padding: 0;
  }
  .action-link:hover { color: var(--on-surface-variant); border-bottom: none; }
</style>