{% extends "base.html" %}

{% block title %}{{ page.month_label }}{% endblock %}

{% block content %}
<header class="mb-6 rounded-3xl border border-slate-200/80 bg-white/80 p-6 shadow-sm backdrop-blur">
  <div class="flex flex-col gap-4 md:flex-row md:items-start md:justify-between">
    <div>
      <p class="text-xs uppercase tracking-[0.22em] text-slate-500">Calorie Tracker</p>
      <h1 class="mt-2 text-3xl font-bold tracking-tight sm:text-4xl">{{ page.month_label }}</h1>
      <p class="mt-3 text-sm text-slate-600">Click any day to inspect all logged food entries.</p>
      <p class="mt-2 text-xs text-slate-500">Shortcuts: `Space` opens today, `?` opens keyboard help.</p>
    </div>
    <div class="flex flex-col items-stretch gap-2 md:items-end">
      <a href="/day/{{ page.today_date }}" class="inline-flex items-center justify-center rounded-lg bg-slate-900 px-4 py-2 text-sm font-semibold text-white transition hover:bg-slate-700">
        Open Today
      </a>
      <div class="grid grid-cols-3 gap-2">
        <a id="prev-month-link" href="{{ page.nav.prev_month_href }}" class="inline-flex items-center justify-center rounded-lg border border-slate-300 bg-white px-3 py-2 text-xs font-semibold text-slate-700 hover:bg-slate-50">&larr; Month</a>
        <a href="{{ page.nav.current_month_href }}" class="inline-flex items-center justify-center rounded-lg border border-slate-300 bg-white px-3 py-2 text-xs font-semibold text-slate-700 hover:bg-slate-50">This Month</a>
        <a id="next-month-link" href="{{ page.nav.next_month_href }}" class="inline-flex items-center justify-center rounded-lg border border-slate-300 bg-white px-3 py-2 text-xs font-semibold text-slate-700 hover:bg-slate-50">Month &rarr;</a>
        <a href="{{ page.nav.prev_year_href }}" class="inline-flex items-center justify-center rounded-lg border border-slate-300 bg-white px-3 py-2 text-xs font-semibold text-slate-700 hover:bg-slate-50">&larr; Year</a>
        <form id="month-picker-form" class="col-span-1">
          <input id="month-picker" type="month" value="{{ page.focus_month_value }}" class="w-full rounded-lg border border-slate-300 bg-white px-2 py-2 text-xs font-semibold text-slate-700" />
        </form>
        <a href="{{ page.nav.next_year_href }}" class="inline-flex items-center justify-center rounded-lg border border-slate-300 bg-white px-3 py-2 text-xs font-semibold text-slate-700 hover:bg-slate-50">Year &rarr;</a>
        <div class="col-span-3">
          {% if page.nav.show_current_month_link %}
          <a href="{{ page.nav.current_month_href }}" class="inline-flex items-center justify-center rounded-lg border border-emerald-300 bg-emerald-50 px-3 py-2 text-xs font-semibold text-emerald-800 hover:bg-emerald-100">Today</a>
          {% else %}
          <span class="inline-flex items-center justify-center rounded-lg border border-slate-200 bg-slate-100 px-3 py-2 text-xs font-semibold text-slate-400">Viewing current month</span>
          {% endif %}
        </div>
      </div>
    </div>
  </div>
</header>

<section class="rounded-3xl border border-slate-200/80 bg-white/80 p-4 shadow-sm backdrop-blur sm:p-6">
  <div class="overflow-x-auto">
    <div class="min-w-[720px]">
      <div class="mb-4 grid grid-cols-7 gap-2">
        <div class="text-center text-xs font-semibold uppercase tracking-wide text-slate-500">Sun</div>
        <div class="text-center text-xs font-semibold uppercase tracking-wide text-slate-500">Mon</div>
        <div class="text-center text-xs font-semibold uppercase tracking-wide text-slate-500">Tue</div>
        <div class="text-center text-xs font-semibold uppercase tracking-wide text-slate-500">Wed</div>
        <div class="text-center text-xs font-semibold uppercase tracking-wide text-slate-500">Thu</div>
        <div class="text-center text-xs font-semibold uppercase tracking-wide text-slate-500">Fri</div>
        <div class="text-center text-xs font-semibold uppercase tracking-wide text-slate-500">Sat</div>
      </div>
      <div class="grid grid-cols-7 gap-2">
        {% for cell in page.cells %}
          {% if cell.is_padding %}
          <div class="h-32 rounded-2xl border border-dashed border-slate-300/80 bg-white/40" aria-hidden="true"></div>
          {% else %}
            {% if cell.is_future %}
            <div class="h-32 rounded-2xl border border-slate-200 bg-slate-100/80 p-3 opacity-65">
              <div class="flex items-start justify-between">
                <span class="text-sm font-semibold text-slate-500">{{ cell.date_text }}</span>
                <span class="rounded-full bg-slate-400 px-2 py-0.5 text-xs font-semibold text-white">{{ cell.day_num }}</span>
              </div>
              <div class="mt-6">
                <p class="text-xl font-bold text-slate-500">{{ cell.total }} cal</p>
                <p class="text-xs text-slate-500">{{ cell.entry_label }}</p>
                <p class="text-xs text-slate-500">{{ cell.weight_label }}</p>
                <p class="mt-1 text-[11px] uppercase tracking-wide text-slate-400">Future</p>
              </div>
            </div>
            {% else %}
              <a class="{{ cell.card_class }}" href="{{ cell.href }}">
                <div class="flex items-start justify-between">
                  <span class="text-sm font-semibold text-slate-500">{{ cell.date_text }}</span>
                  <span class="{{ cell.badge_class }}">{{ cell.day_num }}</span>
                </div>
                <div class="mt-6">
                  <p class="{{ cell.total_class }}">{{ cell.total }} cal</p>
                  <p class="{{ cell.entry_class }}">{{ cell.entry_label }}</p>
                  <p class="{{ cell.entry_class }}">{{ cell.weight_label }}</p>
                </div>
              </a>
            {% endif %}
          {% endif %}
        {% endfor %}
      </div>
    </div>
  </div>
</section>

<div id="shortcut-help" class="hidden fixed inset-0 z-50 bg-slate-900/60 p-4">
  <div class="mx-auto mt-12 max-w-md rounded-2xl bg-white p-5 shadow-xl">
    <div class="flex items-center justify-between">
      <h2 class="text-lg font-bold text-slate-900">Keyboard Shortcuts</h2>
      <button id="shortcut-close" class="rounded-md border border-slate-300 px-2 py-1 text-xs font-semibold text-slate-700 hover:bg-slate-50">Close</button>
    </div>
    <ul class="mt-4 space-y-2 text-sm text-slate-700">
      <li><span class="font-semibold">Space</span>: Open today's entry</li>
      <li><span class="font-semibold">Left Arrow</span>: Previous month</li>
      <li><span class="font-semibold">Right Arrow</span>: Next month</li>
      <li><span class="font-semibold">?</span>: Open/close this help</li>
      <li><span class="font-semibold">Esc</span>: Close this help</li>
    </ul>
  </div>
</div>
{% endblock %}

{% block scripts %}
<script>
  const shortcutHelp = document.getElementById("shortcut-help");
  const shortcutClose = document.getElementById("shortcut-close");
  const monthPicker = document.getElementById("month-picker");
  const prevMonthHref = "{{ page.nav.prev_month_href }}";
  const nextMonthHref = "{{ page.nav.next_month_href }}";

  function toggleShortcutHelp(forceOpen) {
    const shouldOpen = typeof forceOpen === "boolean"
      ? forceOpen
      : shortcutHelp.classList.contains("hidden");
    shortcutHelp.classList.toggle("hidden", !shouldOpen);
  }

  function goToMonthFromPicker() {
    if (!monthPicker.value) return;
    const parts = monthPicker.value.split("-");
    if (parts.length !== 2) return;
    window.location.href = "/calendar/" + Number(parts[0]) + "/" + Number(parts[1]);
  }

  shortcutHelp.addEventListener("click", function (event) {
    if (event.target === shortcutHelp) toggleShortcutHelp(false);
  });
  shortcutClose.addEventListener("click", function () {
    toggleShortcutHelp(false);
  });
  monthPicker.addEventListener("change", goToMonthFromPicker);
  document.getElementById("month-picker-form").addEventListener("submit", function (event) {
    event.preventDefault();
    goToMonthFromPicker();
  });

  document.addEventListener("keydown", function (event) {
    const target = event.target;
    if (target && (
      target.tagName === "INPUT" ||
      target.tagName === "TEXTAREA" ||
      target.tagName === "SELECT" ||
      target.isContentEditable
    )) {
      return;
    }

    if (event.key === "?") {
      event.preventDefault();
      toggleShortcutHelp();
      return;
    }

    if (event.key === "Escape") {
      toggleShortcutHelp(false);
      return;
    }

    if (event.key === "ArrowLeft") {
      event.preventDefault();
      window.location.href = prevMonthHref;
      return;
    }

    if (event.key === "ArrowRight") {
      event.preventDefault();
      window.location.href = nextMonthHref;
      return;
    }

    if (event.code === "Space" && !event.metaKey && !event.ctrlKey && !event.altKey && !event.shiftKey) {
      event.preventDefault();
      window.location.href = "/day/{{ page.today_date }}";
    }
  });
</script>
{% endblock %}