{% extends 'admin/master.html' %}
{% load static %}

{% block content %}
<style>
    .dark-font {
        color: #000000;
    }

    .form-group {
        position: relative;
    }

    .badge-inside {
        position: absolute;
        top: 50%;
        left: 30px;
        transform: translateY(-50%);
        background-color: #ffaa16;
        color: rgb(31, 29, 29);
    }

    .form-control {
        padding-right: 80px;
    }

    .card-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .card-header .btn {
        margin-left: 10px;
    }

    /* Custom styles for image preview */
    .image-preview {
        width: 300px; /* Customize width */
        height: 200px; /* Customize height */
        border: 1px solid #cccccc;
        border-radius: 4px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        overflow: hidden;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: #f9f9f9;
        margin-top: 10px;
    }

    .image-preview img {
        max-width: 100%;
        max-height: 100%;
        object-fit: cover; /* Keeps aspect ratio while fitting */
    }
</style>

<div class="content-body">
    <div class="container-fluid">
        <div class="row page-titles mx-0">
            <div class="col-sm-6 p-md-0">
                <div class="welcome-text">
                    <h4>Hi, welcome back!</h4>
                    <span class="ml-1">Edit Lab Banner</span>
                </div>
            </div>
            <div class="col-sm-6 p-md-0 justify-content-sm-end mt-2 mt-sm-0 d-flex">
                <ol class="breadcrumb">
                    <li class="breadcrumb-item"><a href="{% url "admin_dashboard" %}">Admin</a></li>
                    <li class="breadcrumb-item active"><a href="javascript:void(0)">Edit Lab Banner</a></li>
                </ol>
            </div>
        </div>

        <div class="row">
            <div class="col-xl-12 col-xxl-12">
                <div class="card">
                    <div class="card-header">
                        <h4 class="card-title">Edit Lab Banner</h4>
                        <div>
                            <a href="{% url 'lab_banners_list' %}">
                                <button title="list" type="button" class="btn btn-primary">
                                    List
                                </button>
                            </a>
                        </div>
                    </div>
                    <div class="card-body">
                        <div class="basic-form">
                            <!-- Lab Banner Form -->
                            <form action="{% url 'lab_banners_edit' lab_banner.id %}" method="POST" enctype="multipart/form-data">
                                {% csrf_token %}

                                <div class="form-group row">
                                    <label class="col-sm-2 col-form-label">Laboratory</label>
                                    <div class="col-sm-10">
                                        <select class="form-control" name="laboratory_id" required>
                                            <option disabled value="">Select Laboratory</option>
                                            {% for lab in laboratories %}
                                                <option value="{{ lab.id }}" {% if lab.id == lab_banner.laboratory.id %}selected{% endif %}>
                                                    {{ lab.lab_name }}
                                                </option>
                                            {% endfor %}
                                        </select>
                                    </div>
                                </div>

                                <div class="form-group row">
                                    <label class="col-sm-2 col-form-label">Link</label>
                                    <div class="col-sm-10">
                                        <input type="url" class="form-control" name="link" value="{{ lab_banner.link }}" placeholder="Enter URL (optional)">
                                    </div>
                                </div>

                                <div class="form-group row">
                                    <label class="col-sm-2 col-form-label">Banner Image</label>
                                    <div class="col-sm-10">
                                        <div class="image-preview mb-3" id="imagePreview">
                                            {% if lab_banner.banner %}
                                                <img src="{{ lab_banner.banner.url }}" alt="Current Banner Image" />
                                            {% else %}
                                                <span>No Image Selected</span>
                                            {% endif %}
                                        </div>
                                        <input type="file" class="form-control" name="banner" accept="image/*" id="bannerImageInput">
                                    </div>
                                </div>

                                <div class="form-group row">
                                    <label class="col-sm-2 col-form-label">Status</label>
                                    <div class="col-sm-10">
                                        <select class="form-control" name="status" required>
                                            <option disabled value="">Select Status</option>
                                            <option value="1" {% if lab_banner.status == 1 %}selected{% endif %}>Active</option>
                                            <option value="0" {% if lab_banner.status == 0 %}selected{% endif %}>Inactive</option>
                                        </select>
                                    </div>
                                </div>

                                <div class="form-group row">
                                    <div class="offset-sm-2">
                                        <button type="submit" class="btn btn-primary">Update</button>
                                        <a href="{% url 'lab_banners_list' %}" class="btn btn-secondary">Cancel</a>
                                    </div>
                                </div>
                            </form>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<script>
    // JavaScript for image preview
    document.getElementById('bannerImageInput').addEventListener('change', function (event) {
        const previewContainer = document.getElementById('imagePreview');
        const file = event.target.files[0];

        if (file) {
            const reader = new FileReader();
            reader.onload = function (e) {
                previewContainer.innerHTML = `<img src="${e.target.result}" alt="Image Preview" />`;
            }
            reader.readAsDataURL(file);
        } 
    });
</script>

{% endblock content %}