{% extends "pobsync_backend/base.html" %}

{% block title %}Retention plan | {{ host.host }}{% endblock %}

{% block content %}
  <header class="page-header">
    <div class="page-title">
      <div class="page-kicker">Retention</div>
      <h1>{{ host.host }}</h1>
      <div class="page-subtitle">Preview which snapshots stay, which would be deleted, and whether incomplete cleanup is needed.</div>
    </div>
    <section class="actions" aria-label="Retention filters">
      <a class="button-link" href="{% url 'host_detail' host.host %}">Back to host</a>
      <a class="button-link" href="{% url 'host_retention_plan' host.host %}?kind=scheduled">Scheduled</a>
      <a class="button-link" href="{% url 'host_retention_plan' host.host %}?kind=manual">Manual</a>
      <a class="button-link" href="{% url 'host_retention_plan' host.host %}?kind=all">All</a>
      <a class="button-link" href="{% url 'host_retention_plan' host.host %}?kind={{ kind }}&protect_bases=1">Protect bases</a>
    </section>
  </header>

  <section class="grid" aria-label="Retention plan summary">
    <div class="metric"><div class="label">Kind</div><div class="value">{{ plan.kind }}</div></div>
    <div class="metric"><div class="label">Keep</div><div class="value">{{ plan.keep|length }}</div></div>
    <div class="metric"><div class="label">Would Delete</div><div class="value">{{ plan.delete|length }}</div></div>
    <div class="metric"><div class="label">Scheduled Limit</div><div class="value">{{ scheduled_prune_limit|default:"none" }}</div></div>
    <div class="metric"><div class="label">Incomplete</div><div class="value">{{ plan.incomplete|length }}</div></div>
  </section>

  {% if scheduled_prune_exceeded %}
    <section class="panel highlight warning">
      <h2>Scheduled Prune Limit</h2>
      <p>
        This plan would delete {{ plan.delete|length }} snapshot(s), which exceeds the scheduled prune limit of
        {{ scheduled_prune_limit }}. Scheduled pruning will refuse to apply this plan until the limit or retention
        selection is adjusted.
      </p>
    </section>
  {% endif %}

  {% if plan.incomplete %}
    <section class="panel highlight warning">
      <h2>Incomplete Snapshots</h2>
      <p>
        {{ plan.incomplete|length }} incomplete snapshot(s) exist for this host. Retention does not delete incomplete
        snapshots automatically because they can indicate an interrupted backup that should be inspected first.
      </p>
      <p>
        {{ incomplete_unreviewed_count }} still need review. After inspection, mark them reviewed and use the dedicated
        cleanup form below to delete only incomplete snapshot directories and their tracking records. Successful
        scheduled and manual snapshots are not touched by this cleanup.
      </p>
    </section>
  {% endif %}

  <section class="panel">
    <h2>Policy</h2>
    <div class="stack">
      <div><strong>Daily:</strong> {{ plan.retention.daily }}</div>
      <div><strong>Weekly:</strong> {{ plan.retention.weekly }}</div>
      <div><strong>Monthly:</strong> {{ plan.retention.monthly }}</div>
      <div><strong>Yearly:</strong> {{ plan.retention.yearly }}</div>
      <div><strong>Protect bases:</strong> {{ protect_bases|yesno:"yes,no" }}</div>
      <div class="muted">
        {% if protect_bases %}
          Base snapshots referenced by kept snapshots are also kept and marked with a base-of reason.
        {% else %}
          Base snapshots are only kept when they match the regular retention policy.
        {% endif %}
      </div>
      {% if schedule %}
        <div><strong>Schedule pruning:</strong> {{ schedule.prune|yesno:"enabled,disabled" }}</div>
        <div><strong>Schedule max delete:</strong> {{ schedule.prune_max_delete }}</div>
      {% endif %}
    </div>
  </section>

  <section class="panel">
    <h2>Would Delete</h2>
    <table>
      <thead>
        <tr>
          <th>Kind</th>
          <th>Dirname</th>
          <th>Started</th>
          <th>Status</th>
          <th>Reason</th>
          <th>Path</th>
        </tr>
      </thead>
      <tbody>
        {% for snapshot in plan.delete %}
          <tr>
            <td>{{ snapshot.kind }}</td>
            <td>{{ snapshot.dirname }}</td>
            <td>{{ snapshot.dt }}</td>
            <td>{{ snapshot.status|default:"" }}</td>
            <td>{{ snapshot.reason }}</td>
            <td class="muted">{{ snapshot.path }}</td>
          </tr>
        {% empty %}
          <tr><td colspan="6" class="muted">Retention would not delete snapshots for this selection.</td></tr>
        {% endfor %}
      </tbody>
    </table>
  </section>

  {% if plan.delete %}
    <section class="panel highlight warning">
      <h2>Apply Retention</h2>
      <p class="muted">
        This permanently deletes the snapshot directories listed in Would Delete. Confirm the host and delete count
        before applying the plan.
      </p>
      <form method="post" action="{% url 'apply_host_retention' host.host %}" class="form-grid">
        {% csrf_token %}
        {{ apply_form.non_field_errors }}
        {{ apply_form.kind.as_hidden }}

        <div class="field">
          {{ apply_form.max_delete.errors }}
          <label for="{{ apply_form.max_delete.id_for_label }}">Max delete</label>
          {{ apply_form.max_delete }}
          <div class="helptext">Must be at least {{ plan.delete|length }} for the snapshots shown in Would Delete.</div>
        </div>

        <div class="field">
          {{ apply_form.protect_bases.errors }}
          <label for="{{ apply_form.protect_bases.id_for_label }}">Protect bases</label>
          {{ apply_form.protect_bases }}
        </div>

        <div class="field">
          {{ apply_form.confirm_host.errors }}
          <label for="{{ apply_form.confirm_host.id_for_label }}">Confirm host</label>
          {{ apply_form.confirm_host }}
          <div class="helptext">{{ apply_form.confirm_host.help_text }}</div>
        </div>

        <div class="field">
          {{ apply_form.confirm_delete_count.errors }}
          <label for="{{ apply_form.confirm_delete_count.id_for_label }}">Confirm delete count</label>
          {{ apply_form.confirm_delete_count }}
          <div class="helptext">{{ apply_form.confirm_delete_count.help_text }}</div>
        </div>

        <div class="form-actions">
          <button type="submit" class="danger">Apply retention</button>
          <a class="button-link secondary" href="{% url 'host_retention_plan' host.host %}?kind={{ kind }}">Cancel</a>
        </div>
      </form>
    </section>
  {% endif %}

  <section class="panel">
    <h2>Keep Reasons</h2>
    <table>
      <thead>
        <tr>
          <th>Kind</th>
          <th>Dirname</th>
          <th>Started</th>
          <th>Status</th>
          <th>Reasons</th>
        </tr>
      </thead>
      <tbody>
        {% for snapshot in plan.keep_items %}
          <tr>
            <td>{{ snapshot.kind }}</td>
            <td>{{ snapshot.dirname }}</td>
            <td>{{ snapshot.dt }}</td>
            <td>{{ snapshot.status|default:"" }}</td>
            <td>{{ snapshot.reason }}</td>
          </tr>
        {% empty %}
          <tr><td colspan="5" class="muted">No snapshots matched this retention selection.</td></tr>
        {% endfor %}
      </tbody>
    </table>
  </section>

  {% if plan.incomplete %}
    <section class="panel">
      <h2>Incomplete Snapshots</h2>
      <table>
        <thead>
          <tr>
            <th>Dirname</th>
            <th>Started</th>
            <th>Status</th>
            <th>Review</th>
            <th>Reason</th>
            <th>Path</th>
          </tr>
        </thead>
        <tbody>
          {% for snapshot in plan.incomplete %}
            <tr>
              <td>{{ snapshot.dirname }}</td>
              <td>{{ snapshot.dt }}</td>
              <td>{{ snapshot.status|default:"" }}</td>
              <td>
                {% if snapshot.reviewed %}
                  <span class="status ok">reviewed</span>
                  <span class="muted">{{ snapshot.reviewed_by|default:"unknown" }}</span>
                {% else %}
                  <span class="status warning">needs review</span>
                {% endif %}
              </td>
              <td>{{ snapshot.reason }}</td>
              <td class="muted">{{ snapshot.path }}</td>
            </tr>
          {% endfor %}
        </tbody>
      </table>

      <h3>Cleanup Incomplete Snapshots</h3>
      {% if incomplete_unreviewed_count %}
        <p class="muted">
          Cleanup is blocked until all incomplete snapshots are reviewed. This extra step makes it explicit that the
          interrupted backup was inspected before deletion.
        </p>
        <form method="post" action="{% url 'resolve_host_incomplete_reviews' host.host %}" class="actions inline">
          {% csrf_token %}
          <button type="submit" class="secondary">Mark incomplete snapshots reviewed</button>
        </form>
      {% else %}
        <p class="muted">
          This deletes only reviewed incomplete snapshot directories and their tracking records. Successful manual and
          scheduled snapshots are not touched.
        </p>
        <form method="post" action="{% url 'cleanup_host_incomplete_snapshots' host.host %}" class="form-grid">
          {% csrf_token %}
          {{ incomplete_cleanup_form.non_field_errors }}

          <div class="field">
            {{ incomplete_cleanup_form.max_delete.errors }}
            <label for="{{ incomplete_cleanup_form.max_delete.id_for_label }}">Max delete</label>
            {{ incomplete_cleanup_form.max_delete }}
            <div class="helptext">{{ incomplete_cleanup_form.max_delete.help_text }}</div>
          </div>

          <div class="field">
            {{ incomplete_cleanup_form.confirm_host.errors }}
            <label for="{{ incomplete_cleanup_form.confirm_host.id_for_label }}">Confirm host</label>
            {{ incomplete_cleanup_form.confirm_host }}
            <div class="helptext">{{ incomplete_cleanup_form.confirm_host.help_text }}</div>
          </div>

          <div class="field">
            {{ incomplete_cleanup_form.confirm_delete_count.errors }}
            <label for="{{ incomplete_cleanup_form.confirm_delete_count.id_for_label }}">Confirm incomplete count</label>
            {{ incomplete_cleanup_form.confirm_delete_count }}
            <div class="helptext">{{ incomplete_cleanup_form.confirm_delete_count.help_text }}</div>
          </div>

          <div class="form-actions">
            <button type="submit" class="danger">Delete incomplete snapshots</button>
            <a class="button-link secondary" href="{% url 'host_retention_plan' host.host %}?kind={{ kind }}">Cancel</a>
          </div>
        </form>
      {% endif %}
    </section>
  {% endif %}
{% endblock %}