{% extends "admin/base_site.html" %}
{% block page_title %}{{ title }}{% endblock %}
{% load static %}
{% block extrastyle %}
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css"
          rel="stylesheet" />
    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css"
          rel="stylesheet" />
    <style>
    .required-field::after {
        content: "*";
        color: red;
        margin-left: 4px;
    }

    .help-text {
        font-size: 0.875rem;
        color: #6c757d;
        margin-top: 0.25rem;
    }

    .page-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem;
        background-color: #f8f9fa;
        border-bottom: 1px solid #dee2e6;
        margin-bottom: 2rem;
    }

    .page-title {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        margin: 0;
    }

    .card {
        box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    }
    </style>
{% endblock %}
{% block content %}
    <div class="page-header">
        <h1 class="page-title">
            <i class="nav-icon fas fa-edit"></i>
            Edit Course
        </h1>
        <a href="{% url 'manage_course' %}" class="btn btn-primary">
            <i class="fas fa-list"></i> Back to Courses
        </a>
    </div>
    <div class="container py-4">
        <div class="card">
            <div class="card-header bg-primary text-white">
                <h2 class="h4 mb-0">Edit Course: {{ course.name }}</h2>
            </div>
            <div class="card-body">
                <form method="post" class="needs-validation" novalidate>
                    {% csrf_token %}
                    <!-- Course Name -->
                    <div class="form-group mb-4">
                        <label for="name" class="required-field">Course Name</label>
                        <input type="text"
                               class="form-control"
                               id="name"
                               name="name"
                               value="{{ course.name }}"
                               placeholder="Enter course name"
                               required />
                        <div class="help-text">Course name must be unique</div>
                        <div class="invalid-feedback">Please enter a course name</div>
                    </div>
                    <!-- Course Type -->
                    <div class="form-group mb-4">
                        <label for="course_type" class="required-field">Course Type</label>
                        <select class="form-control" id="course_type" name="course_type" required>
                            <option value="">Select Course Type</option>
                            <option value="semester"
                                    {% if course.course_type == "semester" %}selected{% endif %}>
                                Semester-based
                            </option>
                            <option value="year" {% if course.course_type == "year" %}selected{% endif %}>Year-based</option>
                        </select>
                        <div class="invalid-feedback">Please select a course type</div>
                    </div>
                    <!-- Duration -->
                    <div class="form-group mb-4">
                        <label for="duration" class="required-field">Duration</label>
                        <input type="number"
                               class="form-control"
                               id="duration"
                               name="duration"
                               value="{{ course.duration }}"
                               placeholder="Enter duration in months"
                               min="1"
                               required />
                        <div class="help-text">Specify the duration in months</div>
                        <div class="invalid-feedback">Please enter a valid duration (minimum 1 month)</div>
                    </div>
                    {% if messages %}
                        <div class="mb-4">
                            {% for message in messages %}
                                <div class="alert alert-{{ message.tags }} alert-dismissible fade show">
                                    {{ message }}
                                    <button type="button"
                                            class="btn-close"
                                            data-bs-dismiss="alert"
                                            aria-label="Close"></button>
                                </div>
                            {% endfor %}
                        </div>
                    {% endif %}
                    <div class="d-flex justify-content-end gap-2">
                        <a href="{% url 'manage_course' %}" class="btn btn-secondary">
                            <i class="fas fa-times"></i> Cancel
                        </a>
                        <button type="submit" class="btn btn-primary">
                            <i class="fas fa-save"></i> Update Course
                        </button>
                    </div>
                </form>
            </div>
        </div>
    </div>
    {% block extrajs %}
        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
        <script>
    // Form validation
    (function () {
        "use strict";

        const forms = document.querySelectorAll(".needs-validation");

        Array.from(forms).forEach((form) => {
            form.addEventListener(
                "submit",
                (event) => {
                    if (!form.checkValidity()) {
                        event.preventDefault();
                        event.stopPropagation();
                    }
                    form.classList.add("was-validated");
                },
                false,
            );
        });
    })();
        </script>
    {% endblock %}
{% endblock %}