{% extends "contracts/base.html" %}{% load rr %}{% block title %}Modify {{ contract.number }}{% endblock %}
{% block content %}
<h1>Modify {{ contract.number }} <small>{{ contract.customer }}</small></h1>
<form method="post">{% csrf_token %}
<section class="card">
<h2>1 · What changes?</h2>
<div class="formgrid">{% for f in form %}<label>{{ f.label }}{{ f }}<small class="muted">{{ f.help_text }}</small>{% if f.errors %}<em class="err">{{ f.errors|join:" " }}</em>{% endif %}</label>{% endfor %}</div>
<h3>Added goods or services</h3>
{{ lines.management_form }}
<table class="data form"><thead><tr><th>Product</th><th>Qty</th><th>Unit price</th><th>Start</th><th>End</th><th>Delivery</th><th>Fold into PO</th></tr></thead>
<tbody>{% for f in lines %}<tr><td>{{ f.product }}</td><td>{{ f.quantity }}</td><td>{{ f.unit_price }}</td><td>{{ f.start }}</td><td>{{ f.end }}</td><td>{{ f.delivery_date }}</td><td>{{ f.po_group }}</td></tr>{% if f.errors %}<tr><td colspan="7" class="err">{{ f.errors }}</td></tr>{% endif %}{% endfor %}</tbody></table>
<p class="muted">Existing POs: {% for k, n in po_keys %}<code>{{ k }}</code> {{ n }}{% if not forloop.last %} · {% endif %}{% endfor %}. Leave lines blank for a price-only change.</p>
<button class="btn" name="preview" value="1">Classify &amp; preview impact →</button>
</section>
{% if impact %}
<section class="card">
<h2>2 · Classification</h2>
<p>Suggested treatment: <span class="tag big">{{ impact.suggested }}</span></p>
<ol class="reasons">{% for r in impact.reasons %}<li>{{ r }}</li>{% endfor %}</ol>
<div class="inline">{{ kind_form.kind.label_tag }} {{ kind_form.kind }} <button class="btn" name="reclassify" value="1">Re-preview with this treatment</button></div>
</section>
<section class="card">
<h2>3 · Impact (showing: {{ impact.kind }})</h2>
<div class="kpis small">
  <div class="kpi"><span>Total revenue before</span><b>{{ impact.total_before|money }}</b></div>
  <div class="kpi"><span>Total revenue after</span><b>{{ impact.total_after|money }}</b></div>
  <div class="kpi"><span>Cumulative catch-up at effective date</span><b>{{ impact.catch_up|money }}</b></div>
</div>
<h3>Allocation by PO</h3>
<table class="data compact"><thead><tr><th>PO</th><th>Description</th><th class="num">Before</th><th class="num">After</th></tr></thead>
<tbody>{% for p in impact.pos %}<tr><td>{{ p.key }}</td><td>{{ p.name }}</td><td class="num">{{ p.before|money }}</td><td class="num">{{ p.after|money }}</td></tr>{% endfor %}</tbody></table>
<h3>Months that change</h3>
<table class="data compact"><thead><tr><th>Month</th><th class="num">Before</th><th class="num">After</th></tr></thead>
<tbody>{% for m, b, a in impact.months %}<tr><td>{{ m|slice:":7" }}</td><td class="num">{{ b|money }}</td><td class="num">{{ a|money }}</td></tr>{% empty %}<tr><td colspan="3" class="muted">No change to this contract's schedule.</td></tr>{% endfor %}</tbody></table>
<div class="actions"><button class="btn primary" name="apply" value="1">Apply modification as {{ impact.kind }}</button></div>
</section>
{% endif %}
</form>
{% endblock %}