{% extends "base.html" %}
{% set section = "modules" %}
{% block title %}{% if watermark %}Edit watermark{% else %}New watermark{% endif %} — {{ module.name }}{% endblock %}

{% block content %}
<div class="panel">
    <header>
        {% if watermark %}Edit watermark &middot; {{ watermark.name }}{% else %}New watermark for {{ module.name }}{% endif %}
        <span class="subtitle">resolved before each run; value substituted into source_query</span>
        <span style="margin-left:auto"><a href="{{ cancel_url }}">&larr; back to module</a></span>
    </header>
    <div class="body">
        <form method="post" action="{{ form_action }}">
            <label class="field">
                <span>name</span>
                <input type="text" name="name" required
                       value="{{ watermark.name if watermark else '' }}">
                <span class="help">referenced in source_query as <code>{% raw %}{name}{% endraw %}</code></span>
            </label>

            <label class="field">
                <span>resolver connection</span>
                <select name="connection_id" required>
                    {% for c in connections %}
                    <option value="{{ c.id }}"
                        {% if watermark and c.id == watermark.connection_id %}selected{% endif %}>
                        {{ c.name }}
                    </option>
                    {% endfor %}
                </select>
                <span class="help">database the resolver_sql runs against (usually the destination)</span>
            </label>

            <label class="field">
                <span>resolver SQL</span>
                <textarea name="resolver_sql" rows="4" required>{{ watermark.resolver_sql if watermark else '' }}</textarea>
                <span class="help">must return exactly one row with one column, e.g. <code>SELECT MAX(modified_at) FROM rlarp.mytable</code></span>
            </label>

            <label class="field">
                <span>default value</span>
                <input type="text" name="default_value"
                       value="{{ watermark.default_value if watermark else '' }}">
                <span class="help">used if resolver returns NULL (first run, empty dest). Leave blank to fail instead.</span>
            </label>

            <div class="actions" style="justify-content:flex-end;margin-top:0.8rem">
                <a class="btn ghost" href="{{ cancel_url }}">cancel</a>
                <button type="submit" class="primary">
                    {% if watermark %}save changes{% else %}create watermark{% endif %}
                </button>
            </div>
        </form>
    </div>
</div>
{% endblock %}