{% extends 'base.html' %}
{% from '_helpers.html' import render_field, render_checkbox_field, render_button %}
{% block content %}
<script>
    const screenshot_url="{{url_for('static_content', group='screenshot', filename=uuid)}}";
    {% if last_error_screenshot %}
    const error_screenshot_url="{{url_for('static_content', group='screenshot', filename=uuid, error_screenshot=1) }}";
    {% endif %}

    const highlight_submit_ignore_url="{{url_for('ui.ui_edit.highlight_submit_ignore_url', uuid=uuid)}}";
    const watch_url= {{watch_a.link|tojson}};

    // Initial scroll position: if set, scroll to this line number in #difference on page load
    const initialScrollToLineNumber = {{ initial_scroll_line_number|default('null') }};
</script>
<script src="https://cdn.jsdelivr.net/npm/html2canvas@1.4.1/dist/html2canvas.min.js"></script>
<script src="{{url_for('static_content', group='js', filename='plugins.js')}}"></script>
<script src="https://cdn.jsdelivr.net/npm/piexifjs@1.0.6/piexif.min.js"></script>
<script src="{{url_for('static_content', group='js', filename='snippet-to-image.js')}}"></script>
<script src="{{url_for('static_content', group='js', filename='diff-overview.js')}}" defer></script>


<div id="settings">
    <form class="pure-form " action="{{ url_for("ui.ui_diff.diff_history_page", uuid=uuid) }}" method="GET" id="diff-form">
        <fieldset class="diff-fieldset">
            {% if versions|length >= 1 %}
                <span style="white-space: nowrap;">
                {# TRANSLATORS: 'From' labels the older snapshot version selector on the diff page #}
                <label id="change-from" for="diff-from-version" class="from-to-label">{{ pgettext('diff version', 'From') }}</label>
                <select id="diff-from-version" name="from_version" class="needs-localtime">
                    {%- for version in versions|reverse -%}
                        <option value="{{ version }}" {% if version== from_version %} selected="" {% endif %}>
                            {{ version }}{#{% if loop.index == 2 %} (Previous){% endif %}#}
                        </option>
                    {%- endfor -%}
                </select>
                </span>
                <span style="white-space: nowrap;">
                {# TRANSLATORS: 'To' labels the newer snapshot version selector on the diff page #}
                <label id="change-to" for="diff-to-version" class="from-to-label">{{ pgettext('diff version', 'To') }}</label>
                <select id="diff-to-version" name="to_version" class="needs-localtime">
                    {%- for version in versions|reverse -%}
                        <option value="{{ version }}" {% if version== to_version %} selected="" {% endif %}>
                            {{ version }}{#{% if loop.first %} (Current){% endif %}#}
                        </option>
                    {%- endfor -%}
                </select>
                </span>
                {#<button type="submit" class="pure-button pure-button-primary reset-margin">Go</button>#}
            {% endif %}
        </fieldset>
        <fieldset id="diff-style">
            <span>
                <label for="diffWords" class="pure-checkbox">
                <input type="radio" name="type" id="diffWords" value="diffWords" {% if diff_prefs.type == 'diffWords' %}checked=""{% endif %}> {{ _('Words') }}</label>
            </span>
            <span>
                <label for="diffLines" class="pure-checkbox">
                <input type="radio" name="type" id="diffLines" value="diffLines" {% if diff_prefs.type == 'diffLines' %}checked=""{% endif %}> {{ _('Lines') }}</label>
            </span>
            <span>
                <label for="ignoreWhitespace" class="pure-checkbox" id="label-diff-ignorewhitespace">
                <input type="checkbox" id="ignoreWhitespace" name="ignoreWhitespace" {% if diff_prefs.ignoreWhitespace %}checked=""{% endif %}> {{ _('Ignore Whitespace') }}</label>
            </span>
            <span>
                <label for="changesOnly" class="pure-checkbox" id="label-diff-changes">
                <input type="checkbox" id="changesOnly" name="changesOnly" {% if diff_prefs.changesOnly %}checked=""{% endif %}> {{ _('Same/non-changed') }}</label>
            </span>
            <span>
                <label for="removed" class="pure-checkbox" id="label-diff-removed">
                <input type="checkbox" id="removed" name="removed" {% if diff_prefs.removed %}checked=""{% endif %}> {{ _('Removed') }}</label>
            </span>
            <span>
                <label for="added" class="pure-checkbox" id="label-diff-added">
                <input type="checkbox" id="added" name="added" {% if diff_prefs.added %}checked=""{% endif %}> {{ _('Added') }}</label>
            </span>
            <span>
                <label for="replaced" class="pure-checkbox" id="label-diff-replaced">
                <input type="checkbox" id="replaced"  name="replaced" {% if diff_prefs.replaced %}checked=""{% endif %}> {{ _('Replaced') }}</label>
            </span>
            {%- if llm_configured -%}
            <span>
                <label for="llm_all_changes" class="pure-checkbox" id="label-diff-llm-all-changes" title="{{ _('Include all intermediate snapshots between the selected versions in the AI summary') }}">
                <input type="checkbox" id="llm_all_changes" name="llm_all_changes" {% if diff_prefs.llm_all_changes %}checked=""{% endif %}> &#x2728; {{ _('AI: every change between versions') }}</label>
            </span>
            {%- endif -%}
        </fieldset>
        {%- if versions|length >= 2 -%}
            <div id="keyboard-nav">
                <strong>{{ _('Keyboard:') }} </strong>
                <a href="" class="pure-button pure-button-primary" id="btn-previous"> &larr; {{ _('Previous') }}</a>
                &nbsp; <a class="pure-button pure-button-primary" id="btn-next" href=""> &rarr; {{ _('Next') }}</a>
            </div>
        {%- endif -%}
    </form>
</div>

<div id="diff-jump" style="display:none;"><!-- disabled for now -->
    <a id="jump-next-diff" title="{{ _('Jump to next difference') }}">{{ _('Jump') }}</a>
</div>

<script src="{{url_for('static_content', group='js', filename='tabs.js')}}" defer></script>
<div class="tabs">
    <ul>
        {% if last_error_text %}<li class="tab" id="error-text-tab"><a href="#error-text">{{ _('Error Text') }}</a></li> {% endif %}
        {% if last_error_screenshot %}<li class="tab" id="error-screenshot-tab"><a href="#error-screenshot">{{ _('Error Screenshot') }}</a></li> {% endif %}
        <li class="tab" id="text-tab"><a href="#text">{{ _('Text') }}</a></li>
        <li class="tab" id="screenshot-tab"><a href="#screenshot">{{ _('Current screenshot') }}</a></li>
        <li class="tab" id="extract-tab"><a href="{{ url_for('ui.ui_diff.diff_history_page_extract_GET', uuid=uuid)}}">{{ _('Extract Data') }}</a></li>
    </ul>
</div>

<div id="diff-ui">
    <div class="tab-pane-inner" id="error-text">
        <div class="snapshot-age error">{{watch_a.error_text_ctime|format_seconds_ago}} {{ _('seconds ago.') }}</div>
        <pre>
            {{ last_error_text }}
        </pre>
    </div>

    <div class="tab-pane-inner" id="error-screenshot">
        <div class="snapshot-age error">{{watch_a.snapshot_error_screenshot_ctime|format_seconds_ago}} {{ _('seconds ago') }}</div>
        <img id="error-screenshot-img"  style="max-width: 80%" alt="{{ _('Current error-ing screenshot from most recent request') }}" >
    </div>

    <div class="tab-pane-inner" id="text">
    {%- if (content | default('')).split('\n') | length > 100 -%}
        <div id="cell-diff-jump-visualiser"  style="user-select: none;">
            {%- for cell in diff_cell_grid -%}
            <div{% if cell.class %} class="{{ cell.class }}"{% endif %}></div>
            {%- endfor -%}
        </div>
    {%- endif -%}
        {%- if password_enabled_and_share_is_off -%}
            <div class="tip">{{ _('Pro-tip: You can enable <strong>"share access when password is enabled"</strong> from settings.')|safe }}
            </div>
        {%- endif -%}
        {%- if llm_configured -%}
        <div id="llm-diff-summary-area"{% if not llm_diff_summary %} data-pending="1"{% endif %}>
            <span class="llm-diff-summary-label">&#x2728; {{ _('AI Change Summary') }}</span>
            {%- if llm_diff_summary -%}
            <p class="llm-diff-summary-text">{{ llm_diff_summary }}</p>
            {%- else -%}
            <p class="llm-diff-summary-text llm-diff-summary-loading">{{ _('Generating summary…') }}</p>
            {%- if llm_summary_prompt -%}
            <p class="llm-diff-summary-prompt"><span class="llm-diff-summary-prompt-text">{{ llm_summary_prompt }}</span></p>
            {%- endif -%}
            {%- endif -%}
        </div>
        {%- endif -%}
        <div id="text-diff-heading-area"  style="user-select: none;">
            <div class="snapshot-age"><span>{{ from_version|format_timestamp_timeago }}</span>
                {%- if note -%}<span class="note"><strong>{{ note }}</strong></span>{%- endif -%}
                <a href="{{ url_for("ui.ui_preview.preview_page", uuid=uuid) }}">{{ _('Goto single snapshot') }}</a>
            </div>
        </div>
        <pre id="difference" style="border-left: 2px solid #ddd;">{{ content| diff_unescape_difference_spans }}</pre>
    <div id="diff-visualiser-area-after" style="user-select: none;">
        <strong>{{ _('Tip:') }}</strong> {{ _('Highlight text to share or add to ignore lists.') }}
        &nbsp;&mdash;&nbsp;<a href="{{ url_for('ui.ui_diff.download_patch', uuid=uuid, from_version=from_version, to_version=to_version) }}" target="_blank" rel="noopener" style="font-size:0.85em;">{{ _('Download difference patch') }}</a>
    </div>
    </div>

    <div class="tab-pane-inner" id="screenshot">
         <div class="tip">
             {{ _('For now, Differences are performed on text, not graphically, only the latest screenshot is available.') }}
         </div>
         {% if is_html_webdriver %}
           {% if screenshot %}
            <div class="snapshot-age">{{watch_a.snapshot_screenshot_ctime|format_timestamp_timeago}}</div>
            <img style="max-width: 80%" id="screenshot-img" alt="{{ _('Current screenshot from most recent request') }}" >
           {% else %}
              {{ _('No screenshot available just yet! Try rechecking the page.') }}
           {% endif %}
         {% else %}
           <strong>{{ _('Screenshot requires Playwright/WebDriver enabled') }}</strong>
         {% endif %}
     </div>

</div>

<script>
    const newest_version_timestamp = {{newest_version_timestamp}};
</script>
<script src="{{url_for('static_content', group='js', filename='diff-render.js')}}"></script>

{% if llm_configured %}
<script>
$(function () {
    var $area = $('#llm-diff-summary-area');
    if (!$area.length || !$area.data('pending')) return;

    var fromVersion = $('#diff-from-version').val();
    var toVersion   = $('#diff-to-version').val();
    var summaryUrl  = "{{ url_for('ui.ui_diff.diff_llm_summary', uuid=uuid) }}";

    function showLlmError(msg) {
        $area.find('.llm-diff-summary-text')
             .removeClass('llm-diff-summary-loading')
             .addClass('llm-error')
             .text(msg);
        $area.removeAttr('data-pending');
    }

    var llmAllChanges      = $('#llm_all_changes').is(':checked')    ? 1 : 0;
    var ignoreWhitespace   = $('#ignoreWhitespace').is(':checked')   ? 1 : 0;
    var showRemoved        = $('#removed').is(':checked')            ? 1 : 0;
    var showAdded          = $('#added').is(':checked')              ? 1 : 0;
    $.getJSON(summaryUrl, {
        from_version:      fromVersion,
        to_version:        toVersion,
        all_changes:       llmAllChanges,
        ignore_whitespace: ignoreWhitespace,
        removed:           showRemoved,
        added:             showAdded,
    })
        .done(function (data) {
            if (data.summary) {
                $area.find('.llm-diff-summary-text')
                     .removeClass('llm-diff-summary-loading')
                     .text(data.summary);
                $area.removeAttr('data-pending');
            } else if (data.error) {
                showLlmError(data.error);
            } else {
                $area.remove();
            }
        })
        .fail(function (xhr) {
            var resp = xhr.responseJSON;
            if (resp && resp.error) {
                showLlmError(resp.error);
            } else {
                showLlmError('AI summary request failed (HTTP ' + xhr.status + ').');
            }
        });
});
</script>
{% endif %}

{% endblock %}