{% extends "base.html" %}

{% block title %}DTC history – Yaris OBD Remote{% endblock %}

{% block content %}
<h3 class="text-dark mb-3 fw-bold">DTC history</h3>

<div class="row g-3">
    <div class="col-12">
        <div class="card shadow-sm">
            <div class="card-header py-2 d-flex justify-content-between align-items-center">
                <h6 class="text-primary fw-bold m-0">Diagnostic trouble codes</h6>
                <span id="dtc-count" class="badge bg-secondary">0</span>
            </div>
            <div class="card-body p-0">
                <div id="dtc-loading" class="text-center text-muted py-4">
                    <span class="spinner-border spinner-border-sm me-2" aria-hidden="true"></span>
                    Loading…
                </div>
                <div id="dtc-error" class="alert alert-danger m-3" role="alert" hidden></div>
                <div class="table-responsive">
                    <table class="table table-sm table-hover mb-0" id="dtc-table" hidden>
                        <thead class="table-light">
                            <tr>
                                <th class="ps-3">Code</th>
                                <th>Description</th>
                                <th>MIL</th>
                                <th>Status</th>
                                <th>First seen</th>
                                <th>Last seen</th>
                                <th class="pe-3">Actions</th>
                            </tr>
                        </thead>
                        <tbody id="dtc-body"></tbody>
                    </table>
                </div>
                <div id="dtc-empty" class="text-muted text-center py-4 small" hidden>No DTC events recorded yet.</div>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
(function () {
    const loading = document.getElementById("dtc-loading");
    const error = document.getElementById("dtc-error");
    const table = document.getElementById("dtc-table");
    const tbody = document.getElementById("dtc-body");
    const empty = document.getElementById("dtc-empty");
    const count = document.getElementById("dtc-count");

    function fmt(iso) { return iso ? new Date(iso).toLocaleString() : "—"; }

    async function load() {
        try {
            const r = await fetch("/api/v1/portal/dtc");
            if (!r.ok) throw new Error("Cannot load DTC events.");
            const events = await r.json();
            loading.hidden = true;
            count.textContent = events.length;
            if (!events.length) { empty.hidden = false; return; }
            tbody.innerHTML = events.map(e => `
                <tr>
                    <td class="ps-3 fw-bold font-monospace ${e.is_active ? 'text-danger' : 'text-muted'}">${e.code}</td>
                    <td>${e.description || "—"}</td>
                    <td>${e.mil_on ? '<span class="badge text-bg-warning">ON</span>' : '<span class="badge text-bg-secondary">OFF</span>'}</td>
                    <td>${e.is_active ? '<span class="badge text-bg-danger">Active</span>' : '<span class="badge text-bg-success">Cleared</span>'}</td>
                    <td class="small text-muted">${fmt(e.first_seen_at)}</td>
                    <td class="small text-muted">${fmt(e.last_seen_at)}</td>
                    <td class="pe-3"><button class="btn btn-sm btn-outline-danger" data-dtc-id="${e.id}" title="Delete">🗑</button></td>
                </tr>
            `).join("");
            table.hidden = false;

            tbody.querySelectorAll("[data-dtc-id]").forEach(btn => {
                btn.addEventListener("click", async () => {
                    if (!confirm("Delete this DTC event?")) return;
                    const r = await fetch("/api/v1/portal/dtc/" + btn.dataset.dtcId, {method: "DELETE"});
                    if (!r.ok) { error.textContent = "Could not delete."; error.hidden = false; return; }
                    load();
                });
            });
        } catch (e) {
            loading.hidden = true;
            error.textContent = e.message;
            error.hidden = false;
        }
    }
    load();
})();
</script>
{% endblock %}