{% extends "admin/base.html" %}
{% block title %}Courses{% endblock %}

{% block content %}
<div class="flex justify-between items-center mb-8">
    <div>
        <h1 class="text-2xl font-bold text-white mb-2">Courses</h1>
        <p class="text-white/50 text-sm">Manage courses taught</p>
    </div>
    <button onclick="document.getElementById('add-modal').classList.remove('hidden')"
        class="bg-cyan text-black px-4 py-2 text-sm font-bold hover:bg-white transition-colors">
        + Add Course
    </button>
</div>

<!-- Courses List -->
<div class="terminal-box">
    <table class="w-full">
        <thead class="border-b border-white/10">
            <tr class="text-left text-xs text-white/40 uppercase tracking-wider">
                <th class="p-4">Name</th>
                <th class="p-4">Code</th>
                <th class="p-4">Level</th>
                <th class="p-4">Type</th>
                <th class="p-4">Lab</th>
                <th class="p-4">Actions</th>
            </tr>
        </thead>
        <tbody>
            {% for course in courses %}
            <tr class="border-b border-white/5 hover:bg-white/5">
                <td class="p-4 text-white text-sm">{{ course.name }}</td>
                <td class="p-4 text-cyan text-sm">{{ course.code or '-' }}</td>
                <td class="p-4 text-white/60 text-sm">{{ course.level or '-' }}</td>
                <td class="p-4 text-white/60 text-sm">{{ course.course_type or '-' }}</td>
                <td class="p-4">
                    {% if course.is_lab %}
                    <span class="text-xs px-2 py-1 bg-amber/20 text-amber rounded">Lab</span>
                    {% else %}
                    <span class="text-xs px-2 py-1 bg-white/10 text-white/40 rounded">Theory</span>
                    {% endif %}
                </td>
                <td class="p-4 flex gap-2">
                    <button onclick="openEditModal(this)" data-id="{{ course.id }}" data-name="{{ course.name }}"
                        data-code="{{ course.code or '' }}" data-level="{{ course.level or '' }}"
                        data-type="{{ course.course_type or '' }}" data-lab="{{ 'true' if course.is_lab else 'false' }}"
                        data-description="{{ course.description or '' }}" data-color="{{ course.color or 'cyan' }}"
                        class="text-cyan hover:text-white text-xs">Edit</button>
                    <form method="POST" action="/admin/courses/delete/{{ course.id }}" class="inline">
                        <button type="submit" class="text-red-400 hover:text-red-300 text-xs"
                            onclick="return confirm('Delete this course?')">Delete</button>
                    </form>
                </td>
            </tr>
            {% else %}
            <tr>
                <td colspan="6" class="p-8 text-center text-white/40">No courses yet</td>
            </tr>
            {% endfor %}
        </tbody>
    </table>
</div>

<!-- Add Modal -->
<div id="add-modal" class="hidden fixed inset-0 bg-black/80 flex items-center justify-center z-50">
    <div class="terminal-box p-6 w-full max-w-lg">
        <div class="flex justify-between items-center mb-6">
            <h2 class="text-lg font-bold text-white">Add Course</h2>
            <button onclick="document.getElementById('add-modal').classList.add('hidden')"
                class="text-white/40 hover:text-white">✕</button>
        </div>
        <form method="POST" action="/admin/courses/add" class="space-y-4">
            <div>
                <label class="block text-white/60 text-xs mb-2 uppercase">Course Name *</label>
                <input type="text" name="name" required
                    class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none">
            </div>
            <div class="grid grid-cols-2 gap-4">
                <div>
                    <label class="block text-white/60 text-xs mb-2 uppercase">Course Code</label>
                    <input type="text" name="code"
                        class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none"
                        placeholder="e.g., CS101">
                </div>
                <div>
                    <label class="block text-white/60 text-xs mb-2 uppercase">Level</label>
                    <div class="relative">
                        <input type="text" name="level" list="levels-list"
                            class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none"
                            placeholder="Select or type new">
                        <span class="absolute right-3 top-2.5 text-white/20 pointer-events-none">+</span>
                    </div>
                </div>
            </div>
            <div class="grid grid-cols-2 gap-4">
                <div>
                    <label class="block text-white/60 text-xs mb-2 uppercase">Type</label>
                    <div class="relative">
                        <input type="text" name="course_type" list="course-types-list"
                            class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none"
                            placeholder="Select or type new">
                        <span class="absolute right-3 top-2.5 text-white/20 pointer-events-none">+</span>
                    </div>
                </div>
                <div class="flex items-center pt-6">
                    <label class="flex items-center gap-2 cursor-pointer">
                        <input type="checkbox" name="is_lab" class="w-4 h-4">
                        <span class="text-white/60 text-sm">Lab Course</span>
                    </label>
                </div>
            </div>
            <div>
                <label class="block text-white/60 text-xs mb-2 uppercase">Description</label>
                <textarea name="description" rows="2"
                    class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none"></textarea>
            </div>
            <div class="flex justify-end gap-4 pt-4">
                <button type="button" onclick="document.getElementById('add-modal').classList.add('hidden')"
                    class="px-4 py-2 text-sm text-white/60 hover:text-white">Cancel</button>
                <button type="submit"
                    class="bg-cyan text-black px-6 py-2 text-sm font-bold hover:bg-white transition-colors">Save</button>
            </div>
        </form>
    </div>
</div>

<!-- Edit Modal -->
<div id="edit-modal" class="hidden fixed inset-0 bg-black/80 flex items-center justify-center z-50">
    <div class="terminal-box p-6 w-full max-w-lg">
        <div class="flex justify-between items-center mb-6">
            <h2 class="text-lg font-bold text-white">Edit Course</h2>
            <button onclick="document.getElementById('edit-modal').classList.add('hidden')"
                class="text-white/40 hover:text-white">✕</button>
        </div>
        <form id="edit-form" method="POST" action="" class="space-y-4">
            <div>
                <label class="block text-white/60 text-xs mb-2 uppercase">Course Name *</label>
                <input type="text" name="name" id="edit-name" required
                    class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none">
            </div>
            <div class="grid grid-cols-2 gap-4">
                <div>
                    <label class="block text-white/60 text-xs mb-2 uppercase">Course Code</label>
                    <input type="text" name="code" id="edit-code"
                        class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none">
                </div>
                <div>
                    <label class="block text-white/60 text-xs mb-2 uppercase">Level</label>
                    <div class="relative">
                        <input type="text" name="level" id="edit-level" list="levels-list"
                            class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none"
                            placeholder="Select or type new">
                        <span class="absolute right-3 top-2.5 text-white/20 pointer-events-none">+</span>
                    </div>
                </div>
            </div>
            <div class="grid grid-cols-2 gap-4">
                <div>
                    <label class="block text-white/60 text-xs mb-2 uppercase">Type</label>
                    <div class="relative">
                        <input type="text" name="course_type" id="edit-course_type" list="course-types-list"
                            class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none"
                            placeholder="Select or type new">
                        <span class="absolute right-3 top-2.5 text-white/20 pointer-events-none">+</span>
                    </div>
                </div>
                <div class="flex items-center pt-6">
                    <label class="flex items-center gap-2 cursor-pointer">
                        <input type="checkbox" name="is_lab" id="edit-is_lab" class="w-4 h-4">
                        <span class="text-white/60 text-sm">Lab Course</span>
                    </label>
                </div>
            </div>
            <div>
                <label class="block text-white/60 text-xs mb-2 uppercase">Description</label>
                <textarea name="description" id="edit-description" rows="2"
                    class="w-full bg-black border border-white/20 text-white px-3 py-2 text-sm focus:border-cyan focus:outline-none"></textarea>
            </div>
            <div class="flex justify-end gap-4 pt-4">
                <button type="button" onclick="document.getElementById('edit-modal').classList.add('hidden')"
                    class="px-4 py-2 text-sm text-white/60 hover:text-white">Cancel</button>
                <button type="submit"
                    class="bg-pink text-black px-6 py-2 text-sm font-bold hover:bg-white transition-colors">Update</button>
            </div>
        </form>
    </div>
</div>

<script>
    function openEditModal(btn) {
        const id = btn.dataset.id;
        document.getElementById('edit-form').action = '/admin/courses/update/' + id;
        document.getElementById('edit-name').value = btn.dataset.name;
        document.getElementById('edit-code').value = btn.dataset.code;
        document.getElementById('edit-level').value = btn.dataset.level || 'UG';
        document.getElementById('edit-course_type').value = btn.dataset.type || 'Core';
        document.getElementById('edit-is_lab').checked = btn.dataset.lab === 'true';
        document.getElementById('edit-description').value = btn.dataset.description;
        document.getElementById('edit-modal').classList.remove('hidden');
    }
</script>

<!-- Datalists -->
<datalist id="levels-list">
    {% for l in levels %}
    <option value="{{ l }}">
        {% endfor %}
        {% if not levels %}
    <option value="UG">
    <option value="PG">
    <option value="UG/PG">
        {% endif %}
</datalist>
<datalist id="course-types-list">
    {% for t in course_types %}
    <option value="{{ t }}">
        {% endfor %}
        {% if not course_types %}
    <option value="Core">
    <option value="Elective">
        {% endif %}
</datalist>
{% endblock %}