{% extends "layout_repo.html" %}
{% block page_title %}Compare · {% endblock %}
{% block content %}
{% let base = r.base() %}
<div class="page-subheader page-subheader-stacked">
  <h2>Compare changes</h2>
  <p class="text-muted">Choose two branches to see what has changed or to open a pull request.</p>
</div>
<form class="compare-bar box" method="get" action="{{ base }}/compare">
  <span class="compare-icon">{{ crate::web::fmt::icon("git-compare")|safe }}</span>
  <label class="compare-select"><span>base:</span>
    <select class="input input-sm" name="base" data-autosubmit>
      {% for b in view.branches %}<option value="{{ b }}"{% if *b == view.base %} selected{% endif %}>{{ b }}</option>{% endfor %}
    </select>
  </label>
  <span class="compare-arrow">←</span>
  <label class="compare-select"><span>compare:</span>
    <select class="input input-sm" name="head" data-autosubmit>
      <option value="">choose a branch…</option>
      {% for b in view.branches %}<option value="{{ b }}"{% if *b == view.head %} selected{% endif %}>{{ b }}</option>{% endfor %}
    </select>
  </label>
  <noscript><button class="btn btn-sm" type="submit">Compare</button></noscript>
  {% if let Some(m) = view.mergeability %}
  {% match m %}
  {% when crate::git::Mergeability::Clean %}<span class="merge-hint text-success">{{ crate::web::fmt::icon("check")|safe }} <strong>Able to merge.</strong> These branches can be automatically merged.</span>
  {% when crate::git::Mergeability::Conflicts %}<span class="merge-hint text-danger">{{ crate::web::fmt::icon("x")|safe }} <strong>Can't automatically merge.</strong> You can still open the pull request.</span>
  {% when crate::git::Mergeability::UpToDate %}
  {% endmatch %}
  {% endif %}
</form>

{% if let Some(notice) = view.notice %}
<div class="blankslate box">
  {{ crate::web::fmt::icon("git-compare")|safe }}
  <h3>{{ notice }}</h3>
</div>
{% else %}
  {% if let Some(n) = view.existing %}
  <div class="banner">
    <span>{{ crate::web::fmt::icon("git-pull-request")|safe }} There is already an open pull request for these branches.</span>
    <a class="btn btn-sm" href="{{ base }}/pull/{{ n }}">View pull request #{{ n }}</a>
  </div>
  {% else if view.can_open() %}
    {% if ctx.user.is_some() %}
    <form method="post" action="{{ base }}/pulls" class="box new-pull">
      <div class="new-pull-body">
        {% if let Some(u) = ctx.user %}{{ crate::web::fmt::avatar(u.username, 40)|safe }}{% endif %}
        <div class="new-pull-fields">
          <input type="hidden" name="base" value="{{ view.base }}">
          <input type="hidden" name="head" value="{{ view.head }}">
          <label class="field">
            <span class="field-label">Title</span>
            <input class="input" type="text" name="title" value="{{ view.title }}" maxlength="256" required>
          </label>
          <label class="field">
            <span class="field-label">Description</span>
            <textarea class="input" name="body" rows="8" placeholder="Describe your changes. Markdown is supported."></textarea>
          </label>
          <div class="form-actions"><button class="btn btn-success" type="submit">Create pull request</button></div>
        </div>
      </div>
    </form>
    {% else %}
    <div class="banner"><span><a href="/login?next={{ crate::web::fmt::urlencode(ctx.path) }}">Sign in</a> to open a pull request.</span></div>
    {% endif %}
  {% endif %}

  <div class="compare-summary box">
    <span>{{ crate::web::fmt::icon("git-commit-horizontal")|safe }} <strong>{{ crate::web::fmt::plural(view.commits.len(), "commit") }}</strong></span>
    {% if let Some(d) = view.diff %}
    <span>{{ crate::web::fmt::icon("file-text")|safe }} <strong>{{ crate::web::fmt::plural(d.files.len(), "file") }} changed</strong></span>
    {% endif %}
  </div>

  <div class="box compare-commits">
    {% for c in view.commits %}
    <div class="box-row commit-row commit-row-compact">
      {{ crate::web::fmt::avatar(c.author_name, 20)|safe }}
      <span class="text-muted text-small commit-row-author">{{ c.author_name }}</span>
      <a class="commit-title truncate" href="{{ base }}/commit/{{ c.id }}">{{ c.summary }}</a>
      <a class="text-mono text-muted text-small" href="{{ base }}/commit/{{ c.id }}">{{ c.short_id }}</a>
    </div>
    {% endfor %}
  </div>

  {% if let Some(diff) = view.diff %}
  {% let file_ref = crate::web::fmt::urlpath(view.head) %}
  {% include "partials/diff.html" %}
  {% endif %}
{% endif %}
{% endblock %}