{% extends 'admin_panel/base.html' %}
{% load static %}

{% block title %}{{ page_title }}{% endblock %}

{% block extra_css %}
<link rel="stylesheet" href="{% static 'css/admin/letters/request_form.css' %}">
{% endblock %}

{% block content %}
<div class="container-fluid">
    <!-- Header -->
    <div class="row mb-4">
        <div class="col-12">
            <div class="d-flex justify-content-between align-items-center">
                <div>
                    <h1 class="h3 mb-0">{{ page_title }}</h1>
                    <p class="text-muted">
                        {% if request_letter %}
                            Edit request surat
                        {% else %}
                            Buat request surat baru
                        {% endif %}
                    </p>
                </div>
                <div>
                    <a href="{% url 'admin_panel:letters:admin_request_letters_list' %}" class="btn btn-outline-secondary">
                        <i class="fas fa-arrow-left"></i> Kembali ke List
                    </a>
                </div>
            </div>
        </div>
    </div>

    <form method="POST" enctype="multipart/form-data" id="requestForm">
        {% csrf_token %}
        
        <div class="row">
            <!-- Main Form -->
            <div class="col-lg-8">
                <!-- Basic Information -->
                <div class="form-section">
                    <h5><i class="fas fa-info-circle"></i> Informasi Dasar</h5>
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="{{ form.title.id_for_label }}" class="form-label required-field">
                                    {{ form.title.label }}
                                </label>
                                {{ form.title }}
                                {% if form.title.errors %}
                                    <div class="text-danger small">{{ form.title.errors.0 }}</div>
                                {% endif %}
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="{{ form.category.id_for_label }}" class="form-label required-field">
                                    {{ form.category.label }}
                                </label>
                                {{ form.category }}
                                {% if form.category.errors %}
                                    <div class="text-danger small">{{ form.category.errors.0 }}</div>
                                {% endif %}
                            </div>
                        </div>
                    </div>
                    
                    <div class="mb-3">
                        <label for="{{ form.description.id_for_label }}" class="form-label required-field">
                            {{ form.description.label }}
                        </label>
                        {{ form.description }}
                        {% if form.description.errors %}
                            <div class="text-danger small">{{ form.description.errors.0 }}</div>
                        {% endif %}
                    </div>
                </div>

                <!-- Penduduk Information -->
                <div class="form-section">
                    <h5><i class="fas fa-user"></i> Informasi Penduduk</h5>
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="{{ form.resident.id_for_label }}" class="form-label">
                                    {{ form.resident.label }}
                                </label>
                                {{ form.resident }}
                                {% if form.resident.errors %}
                                    <div class="text-danger small">{{ form.resident.errors.0 }}</div>
                                {% endif %}
                                <div class="form-text">{{ form.resident.help_text }}</div>
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="{{ form.resident_name_manual.id_for_label }}" class="form-label">
                                    {{ form.resident_name_manual.label }}
                                </label>
                                {{ form.resident_name_manual }}
                                {% if form.resident_name_manual.errors %}
                                    <div class="text-danger small">{{ form.resident_name_manual.errors.0 }}</div>
                                {% endif %}
                                <div class="form-text">{{ form.resident_name_manual.help_text }}</div>
                            </div>
                        </div>
                    </div>
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="{{ form.contact_phone.id_for_label }}" class="form-label">
                                    {{ form.contact_phone.label }}
                                </label>
                                {{ form.contact_phone }}
                                {% if form.contact_phone.errors %}
                                    <div class="text-danger small">{{ form.contact_phone.errors.0 }}</div>
                                {% endif %}
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="{{ form.contact_email.id_for_label }}" class="form-label">
                                    {{ form.contact_email.label }}
                                </label>
                                {{ form.contact_email }}
                                {% if form.contact_email.errors %}
                                    <div class="text-danger small">{{ form.contact_email.errors.0 }}</div>
                                {% endif %}
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Admin Fields (only for edit) -->
                {% if request_letter %}
                <div class="form-section">
                    <h5><i class="fas fa-user-tie"></i> Pengelolaan Admin</h5>
                    
                    <div class="row">
                        <div class="col-md-4">
                            <div class="mb-3">
                                <label for="{{ form.status.id_for_label }}" class="form-label">
                                    {{ form.status.label }}
                                </label>
                                {{ form.status }}
                                {% if form.status.errors %}
                                    <div class="text-danger small">{{ form.status.errors.0 }}</div>
                                {% endif %}
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="mb-3">
                                <label for="{{ form.priority.id_for_label }}" class="form-label">
                                    {{ form.priority.label }}
                                </label>
                                {{ form.priority }}
                                {% if form.priority.errors %}
                                    <div class="text-danger small">{{ form.priority.errors.0 }}</div>
                                {% endif %}
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="mb-3">
                                <label for="{{ form.assigned_to.id_for_label }}" class="form-label">
                                    {{ form.assigned_to.label }}
                                </label>
                                {{ form.assigned_to }}
                                {% if form.assigned_to.errors %}
                                    <div class="text-danger small">{{ form.assigned_to.errors.0 }}</div>
                                {% endif %}
                            </div>
                        </div>
                    </div>
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="{{ form.due_date.id_for_label }}" class="form-label">
                                    {{ form.due_date.label }}
                                </label>
                                {{ form.due_date }}
                                {% if form.due_date.errors %}
                                    <div class="text-danger small">{{ form.due_date.errors.0 }}</div>
                                {% endif %}
                            </div>
                        </div>
                    </div>
                    
                    <div class="mb-3">
                        <label for="{{ form.admin_notes.id_for_label }}" class="form-label">
                            {{ form.admin_notes.label }}
                        </label>
                        {{ form.admin_notes }}
                        {% if form.admin_notes.errors %}
                            <div class="text-danger small">{{ form.admin_notes.errors.0 }}</div>
                        {% endif %}
                    </div>
                    
                    {% if form.rejection_reason %}
                    <div class="mb-3">
                        <label for="{{ form.rejection_reason.id_for_label }}" class="form-label">
                            {{ form.rejection_reason.label }}
                        </label>
                        {{ form.rejection_reason }}
                        {% if form.rejection_reason.errors %}
                            <div class="text-danger small">{{ form.rejection_reason.errors.0 }}</div>
                        {% endif %}
                    </div>
                    {% endif %}
                </div>
                {% endif %}

                <!-- Documents -->
                <div class="form-section">
                    <h5><i class="fas fa-file-alt"></i> Dokumen</h5>
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="{{ form.supporting_documents.id_for_label }}" class="form-label">
                                    {{ form.supporting_documents.label }}
                                </label>
                                <div class="file-upload-area" id="supportingUploadArea">
                                    <i class="fas fa-cloud-upload-alt fa-3x text-muted mb-3"></i>
                                    <p class="mb-2">Drag & drop file atau klik untuk memilih</p>
                                    <p class="text-muted small">PDF, Word, Image (Max 10MB)</p>
                                    {{ form.supporting_documents }}
                                </div>
                                {% if form.supporting_documents.errors %}
                                    <div class="text-danger small">{{ form.supporting_documents.errors.0 }}</div>
                                {% endif %}
                                <div class="form-text">{{ form.supporting_documents.help_text }}</div>
                                
                                <!-- File Preview -->
                                {% if request_letter and request_letter.supporting_documents %}
                                <div class="mt-2">
                                    <small class="text-muted">File saat ini:</small>
                                    <div class="d-flex align-items-center mt-1">
                                        <i class="fas fa-file-alt text-primary me-2"></i>
                                        <span class="small">{{ request_letter.supporting_documents.name }}</span>
                                        <a href="{{ request_letter.supporting_documents.url }}" target="_blank" 
                                           class="btn btn-sm btn-outline-primary ms-2">
                                            <i class="fas fa-eye"></i>
                                        </a>
                                    </div>
                                </div>
                                {% endif %}
                            </div>
                        </div>
                        
                        {% if request_letter %}
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="{{ form.generated_document.id_for_label }}" class="form-label">
                                    {{ form.generated_document.label }}
                                </label>
                                <div class="file-upload-area" id="generatedUploadArea">
                                    <i class="fas fa-file-pdf fa-3x text-success mb-3"></i>
                                    <p class="mb-2">Upload dokumen yang sudah dibuat</p>
                                    <p class="text-muted small">PDF, Word (Max 10MB)</p>
                                    {{ form.generated_document }}
                                </div>
                                {% if form.generated_document.errors %}
                                    <div class="text-danger small">{{ form.generated_document.errors.0 }}</div>
                                {% endif %}
                                <div class="form-text">{{ form.generated_document.help_text }}</div>
                                
                                <!-- File Preview -->
                                {% if request_letter.generated_document %}
                                <div class="mt-2">
                                    <small class="text-muted">File saat ini:</small>
                                    <div class="d-flex align-items-center mt-1">
                                        <i class="fas fa-file-pdf text-success me-2"></i>
                                        <span class="small">{{ request_letter.generated_document.name }}</span>
                                        <a href="{{ request_letter.generated_document.url }}" target="_blank" 
                                           class="btn btn-sm btn-outline-success ms-2">
                                            <i class="fas fa-eye"></i>
                                        </a>
                                    </div>
                                </div>
                                {% endif %}
                            </div>
                        </div>
                        {% endif %}
                    </div>
                </div>
            </div>

            <!-- Sidebar -->
            <div class="col-lg-4">
                <!-- Form Actions -->
                <div class="card">
                    <div class="card-header">
                        <h5 class="mb-0">Aksi</h5>
                    </div>
                    <div class="card-body">
                        <div class="d-grid gap-2">
                            <button type="submit" class="btn btn-primary">
                                <i class="fas fa-save"></i> 
                                {% if request_letter %}Update Request{% else %}Buat Request{% endif %}
                            </button>
                            <a href="{% url 'admin_panel:letters:admin_request_letters_list' %}" 
                               class="btn btn-outline-secondary">
                                <i class="fas fa-times"></i> Batal
                            </a>
                        </div>
                    </div>
                </div>

                <!-- Form Help -->
                <div class="card mt-3">
                    <div class="card-header">
                        <h5 class="mb-0">Bantuan</h5>
                    </div>
                    <div class="card-body">
                        <div class="small">
                            <h6>Field Wajib:</h6>
                            <ul class="list-unstyled">
                                <li><i class="fas fa-check text-success"></i> Judul Request</li>
                                <li><i class="fas fa-check text-success"></i> Kategori</li>
                                <li><i class="fas fa-check text-success"></i> Deskripsi</li>
                            </ul>
                            
                            <h6>Tips:</h6>
                            <ul class="list-unstyled">
                                <li><i class="fas fa-lightbulb text-warning"></i> Pilih penduduk dari data referensi jika tersedia</li>
                                <li><i class="fas fa-lightbulb text-warning"></i> Upload dokumen pendukung untuk mempercepat proses</li>
                                <li><i class="fas fa-lightbulb text-warning"></i> Isi kontak untuk memudahkan komunikasi</li>
                            </ul>
                        </div>
                    </div>
                </div>

                <!-- Request Info (for edit) -->
                {% if request_letter %}
                <div class="card mt-3">
                    <div class="card-header">
                        <h5 class="mb-0">Info Request</h5>
                    </div>
                    <div class="card-body">
                        <div class="small">
                            <p><strong>Nomor:</strong> {{ request_letter.request_number }}</p>
                            <p><strong>Dibuat:</strong> {{ request_letter.created_date|date:"d M Y H:i" }}</p>
                            <p><strong>Terakhir Update:</strong> {{ request_letter.updated_date|date:"d M Y H:i" }}</p>
                        </div>
                    </div>
                </div>
                {% endif %}
            </div>
        </div>
    </form>
</div>
{% endblock %}

{% block extra_js %}
<script>
document.addEventListener('DOMContentLoaded', function() {
    // File upload drag and drop
    const uploadAreas = document.querySelectorAll('.file-upload-area');
    
    uploadAreas.forEach(area => {
        const fileInput = area.querySelector('input[type="file"]');
        
        area.addEventListener('click', () => fileInput.click());
        
        area.addEventListener('dragover', (e) => {
            e.preventDefault();
            area.classList.add('dragover');
        });
        
        area.addEventListener('dragleave', () => {
            area.classList.remove('dragover');
        });
        
        area.addEventListener('drop', (e) => {
            e.preventDefault();
            area.classList.remove('dragover');
            const files = e.dataTransfer.files;
            if (files.length > 0) {
                fileInput.files = files;
                updateFilePreview(fileInput);
            }
        });
        
        fileInput.addEventListener('change', () => {
            updateFilePreview(fileInput);
        });
    });
    
    function updateFilePreview(input) {
        const area = input.closest('.file-upload-area');
        const files = input.files;
        
        if (files.length > 0) {
            const file = files[0];
            const preview = area.querySelector('.file-preview') || createFilePreview(area);
            
            preview.innerHTML = `
                <div class="d-flex align-items-center">
                    <i class="fas fa-file-alt fa-2x text-primary me-2"></i>
                    <div>
                        <p class="mb-0"><strong>${file.name}</strong></p>
                        <small class="text-muted">${(file.size / 1024 / 1024).toFixed(2)} MB</small>
                    </div>
                </div>
            `;
        }
    }
    
    function createFilePreview(area) {
        const preview = document.createElement('div');
        preview.className = 'file-preview mt-2';
        area.appendChild(preview);
        return preview;
    }
    
    // Form validation
    const form = document.getElementById('requestForm');
    form.addEventListener('submit', function(e) {
        const requiredFields = form.querySelectorAll('.required-field');
        let isValid = true;
        
        requiredFields.forEach(field => {
            const input = form.querySelector(`#${field.getAttribute('for')}`);
            if (!input.value.trim()) {
                isValid = false;
                input.classList.add('is-invalid');
            } else {
                input.classList.remove('is-invalid');
            }
        });
        
        if (!isValid) {
            e.preventDefault();
            alert('Mohon lengkapi semua field yang wajib diisi');
        }
    });
    
    // Auto-save draft (optional)
    const formInputs = form.querySelectorAll('input, textarea, select');
    formInputs.forEach(input => {
        input.addEventListener('change', function() {
            // Save to localStorage as draft
            const formData = new FormData(form);
            const data = {};
            for (let [key, value] of formData.entries()) {
                data[key] = value;
            }
            localStorage.setItem('requestLetterDraft', JSON.stringify(data));
        });
    });
    
    // Load draft on page load
    const draft = localStorage.getItem('requestLetterDraft');
    if (draft && !{{ request_letter.pk|yesno:"true,false" }}) {
        const data = JSON.parse(draft);
        Object.keys(data).forEach(key => {
            const input = form.querySelector(`[name="${key}"]`);
            if (input && input.type !== 'file') {
                input.value = data[key];
            }
        });
    }
});
</script>
{% endblock %}