{% extends 'agency_base.html' %}
{% load static i18n %}

{% block title %}{% trans "Submit Candidate" %} - {{ assignment.job.title }} - Agency Portal{% endblock %}

{% block customCSS %}
<style>
    /* KAAT-S UI Variables */
    :root {
        --kaauh-teal: #00636e;
        --kaauh-teal-dark: #004a53;
        --kaauh-border: #eaeff3;
        --kaauh-primary-text: #343a40;
        --kaauh-success: #28a745;
        --kaauh-info: #17a2b8;
        --kaauh-danger: #dc3545;
        --kaauh-warning: #ffc107;
    }

    .kaauh-card {
        border: 1px solid var(--kaauh-border);
        border-radius: 0.75rem;
        box-shadow: 0 4px 12px rgba(0,0,0,0.06);
        background-color: white;
    }

    .btn-main-action {
        background-color: var(--kaauh-teal);
        border-color: var(--kaauh-teal);
        color: white;
        font-weight: 600;
        transition: all 0.2s ease;
    }
    .btn-main-action:hover {
        background-color: var(--kaauh-teal-dark);
        border-color: var(--kaauh-teal-dark);
        box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    }

    .form-control:focus {
        border-color: var(--kaauh-teal);
        box-shadow: 0 0 0 0.2rem rgba(0, 99, 110, 0.25);
    }

    .form-select:focus {
        border-color: var(--kaauh-teal);
        box-shadow: 0 0 0 0.2rem rgba(0, 99, 110, 0.25);
    }

    .file-upload-area {
        border: 2px dashed var(--kaauh-border);
        border-radius: 0.5rem;
        padding: 2rem;
        text-align: center;
        transition: all 0.3s ease;
        background-color: #f8f9fa;
    }
    .file-upload-area:hover {
        border-color: var(--kaauh-teal);
        background-color: #e9ecef;
    }
    .file-upload-area.has-file {
        border-color: var(--kaauh-success);
        background-color: #d4edda;
    }

    .progress-indicator {
        height: 4px;
        background-color: var(--kaauh-teal);
        border-radius: 2px;
        transition: width 0.3s ease;
    }

    .assignment-info {
        background: linear-gradient(135deg, var(--kaauh-teal) 0%, var(--kaauh-teal-dark) 100%);
        color: white;
        border-radius: 0.75rem;
        padding: 1.5rem;
    }

    .required-field::after {
        content: " *";
        color: var(--kaauh-danger);
    }
</style>
{% endblock %}

{% block content %}
<div class="container-fluid py-4">
    <!-- Breadcrumb Navigation -->
    <nav aria-label="breadcrumb" class="mb-4">
        <ol class="breadcrumb">
            <li class="breadcrumb-item">
                <a href="{% url 'agency_portal_dashboard' %}" class="text-decoration-none">
                    <i class="fas fa-home me-1"></i>{% trans "Dashboard" %}
                </a>
            </li>
            <li class="breadcrumb-item">
                <a href="{% url 'agency_assignment_detail' assignment.slug %}" class="text-decoration-none">
                    {{ assignment.job.title }}
                </a>
            </li>
            <li class="breadcrumb-item active" aria-current="page">
                {% trans "Submit Candidate" %}
            </li>
        </ol>
    </nav>

    <!-- Header -->
    <div class="d-flex justify-content-between align-items-center mb-4">
        <div>
            <h1 class="h3 mb-1" style="color: var(--kaauh-teal-dark); font-weight: 700;">
                <i class="fas fa-user-plus me-2"></i>
                {% trans "Submit New Candidate" %}
            </h1>
            <p class="text-muted mb-0">
                {% trans "Submit a candidate for" %} {{ assignment.job.title }}
            </p>
        </div>
        <div>
            <a href="{% url 'agency_portal_assignment_detail' assignment.slug %}" class="btn btn-outline-secondary">
                <i class="fas fa-arrow-left me-1"></i> {% trans "Back to Assignment" %}
            </a>
        </div>
    </div>

    <div class="row">
        <!-- Assignment Info Card -->
        <div class="col-lg-4 mb-4">
            <div class="assignment-info">
                <h5 class="mb-3">
                    <i class="fas fa-info-circle me-2"></i>
                    {% trans "Assignment Details" %}
                </h5>
                <div class="mb-2">
                    <strong>{% trans "Position:" %}</strong> {{ assignment.job.title }}
                </div>
                <div class="mb-2">
                    <strong>{% trans "Department:" %}</strong> {{ assignment.job.department|default:"N/A" }}
                </div>
                <div class="mb-2">
                    <strong>{% trans "Deadline:" %}</strong> {{ assignment.deadline_date|date:"Y-m-d H:i" }}
                </div>
                <div class="mb-2">
                    <strong>{% trans "Days Remaining:" %}</strong>
                    <span class="{% if assignment.days_remaining <= 3 %}text-warning{% endif %}">
                        {{ assignment.days_remaining }} {% trans "days" %}
                    </span>
                </div>
                <div class="mb-2">
                    <strong>{% trans "Submitted:" %}</strong> {{ total_submitted }}/{{ assignment.max_candidates }}
                </div>
                <div>
                    <strong>{% trans "Status:" %}</strong>
                    {% if assignment.can_submit %}
                        <span class="badge bg-success">{% trans "Can Submit" %}</span>
                    {% else %}
                        <span class="badge bg-danger">{% trans "Cannot Submit" %}</span>
                    {% endif %}
                </div>
            </div>
        </div>

        <!-- Submission Form -->
        <div class="col-lg-8">
            {% if assignment.can_submit %}
            <div class="kaauh-card p-4">
                <h5 class="mb-4" style="color: var(--kaauh-teal-dark);">
                    <i class="fas fa-user-edit me-2"></i>
                    {% trans "Candidate Information" %}
                </h5>

                <form method="post" enctype="multipart/form-data" id="candidateForm"
                      action="{% url 'agency_portal_submit_candidate_page' assignment.slug %}">
                    {% csrf_token %}

                    <!-- Personal Information -->
                    <div class="row mb-4">
                        <div class="col-12">
                            <h6 class="mb-3 text-muted">
                                <i class="fas fa-user me-1"></i>
                                {% trans "Personal Information" %}
                            </h6>
                        </div>
                        <div class="col-md-6 mb-3">
                            <label for="first_name" class="form-label required-field">
                                {% trans "First Name" %}
                            </label>
                            <input type="text"
                                   class="form-control"
                                   id="first_name"
                                   name="first_name"
                                   required
                                   placeholder="{% trans 'Enter first name' %}">
                        </div>
                        <div class="col-md-6 mb-3">
                            <label for="last_name" class="form-label required-field">
                                {% trans "Last Name" %}
                            </label>
                            <input type="text"
                                   class="form-control"
                                   id="last_name"
                                   name="last_name"
                                   required
                                   placeholder="{% trans 'Enter last name' %}">
                        </div>
                    </div>

                    <!-- Contact Information -->
                    <div class="row mb-4">
                        <div class="col-12">
                            <h6 class="mb-3 text-muted">
                                <i class="fas fa-address-book me-1"></i>
                                {% trans "Contact Information" %}
                            </h6>
                        </div>
                        <div class="col-md-6 mb-3">
                            <label for="email" class="form-label required-field">
                                {% trans "Email Address" %}
                            </label>
                            <input type="email"
                                   class="form-control"
                                   id="email"
                                   name="email"
                                   required
                                   placeholder="{% trans 'Enter email address' %}">
                        </div>
                        <div class="col-md-6 mb-3">
                            <label for="phone" class="form-label required-field">
                                {% trans "Phone Number" %}
                            </label>
                            <input type="tel"
                                   class="form-control"
                                   id="phone"
                                   name="phone"
                                   required
                                   placeholder="{% trans 'Enter phone number' %}">
                        </div>
                    </div>

                    <!-- Address Information -->
                    <div class="row mb-4">
                        <div class="col-12">
                            <h6 class="mb-3 text-muted">
                                <i class="fas fa-map-marker-alt me-1"></i>
                                {% trans "Address Information" %}
                            </h6>
                        </div>
                        <div class="col-12 mb-3">
                            <label for="address" class="form-label required-field">
                                {% trans "Full Address" %}
                            </label>
                            <textarea class="form-control"
                                      id="address"
                                      name="address"
                                      rows="3"
                                      required
                                      placeholder="{% trans 'Enter full address' %}"></textarea>
                        </div>
                    </div>

                    <!-- Resume Upload -->
                    <div class="row mb-4">
                        <div class="col-12">
                            <h6 class="mb-3 text-muted">
                                <i class="fas fa-file-alt me-1"></i>
                                {% trans "Resume/CV" %}
                            </h6>
                        </div>
                        <div class="col-12 mb-3">
                            <label for="resume" class="form-label required-field">
                                {% trans "Upload Resume" %}
                            </label>
                            <div class="file-upload-area" id="fileUploadArea">
                                <input type="file"
                                       class="form-control d-none"
                                       id="resume"
                                       name="resume"
                                       accept=".pdf,.doc,.docx"
                                       required>

                                <div id="uploadPlaceholder">
                                    <i class="fas fa-cloud-upload-alt fa-3x text-muted mb-3"></i>
                                    <h6 class="text-muted">{% trans "Click to upload or drag and drop" %}</h6>
                                    <p class="text-muted small">
                                        {% trans "Accepted formats: PDF, DOC, DOCX (Maximum 5MB)" %}
                                    </p>
                                </div>

                                <div id="filePreview" class="d-none">
                                    <i class="fas fa-file-alt fa-3x text-success mb-3"></i>
                                    <h6 id="fileName" class="text-success"></h6>
                                    <button type="button" class="btn btn-sm btn-outline-danger" id="removeFile">
                                        <i class="fas fa-times me-1"></i>{% trans "Remove File" %}
                                    </button>
                                </div>
                            </div>
                        </div>
                    </div>

                    <!-- Additional Notes -->
                    <div class="row mb-4">
                        <div class="col-12">
                            <h6 class="mb-3 text-muted">
                                <i class="fas fa-sticky-note me-1"></i>
                                {% trans "Additional Notes" %}
                            </h6>
                        </div>
                        <div class="col-12 mb-3">
                            <label for="notes" class="form-label">
                                {% trans "Notes (Optional)" %}
                            </label>
                            <textarea class="form-control"
                                      id="notes"
                                      name="notes"
                                      rows="4"
                                      placeholder="{% trans 'Any additional information about the candidate' %}"></textarea>
                        </div>
                    </div>

                    <!-- Form Actions -->
                    <div class="row">
                        <div class="col-12">
                            <div class="d-flex justify-content-between align-items-center">
                                <div>
                                    <small class="text-muted">
                                        <i class="fas fa-info-circle me-1"></i>
                                        {% trans "Submitted candidates will be reviewed by the hiring team." %}
                                    </small>
                                </div>
                                <div>
                                    <a href="{% url 'agency_assignment_detail' assignment.slug %}" class="btn btn-outline-secondary me-2">
                                        {% trans "Cancel" %}
                                    </a>
                                    <button type="submit" class="btn btn-main-action" id="submitBtn">
                                        <i class="fas fa-paper-plane me-1"></i>
                                        {% trans "Submit Candidate" %}
                                    </button>
                                </div>
                            </div>
                        </div>
                    </div>
                </form>
            </div>
            {% else %}
            <div class="kaauh-card p-4">
                <div class="text-center py-5">
                    <i class="fas fa-exclamation-triangle fa-4x text-warning mb-4"></i>
                    <h4 class="text-warning mb-3">{% trans "Cannot Submit Candidates" %}</h4>
                    <div class="alert alert-warning d-inline-block">
                        {% if assignment.is_expired %}
                            <i class="fas fa-clock me-2"></i>
                            {% trans "This assignment has expired. Submissions are no longer accepted." %}
                        {% elif assignment.is_full %}
                            <i class="fas fa-users me-2"></i>
                            {% trans "Maximum candidate limit reached for this assignment." %}
                        {% else %}
                            <i class="fas fa-pause me-2"></i>
                            {% trans "This assignment is not currently active." %}
                        {% endif %}
                    </div>
                    <div class="mt-4">
                        <a href="{% url 'agency_assignment_detail' assignment.slug %}" class="btn btn-outline-primary">
                            <i class="fas fa-arrow-left me-1"></i>
                            {% trans "Back to Assignment" %}
                        </a>
                    </div>
                </div>
            </div>
            {% endif %}
        </div>
    </div>
</div>

<!-- Loading Overlay -->
<div class="modal fade" id="loadingModal" tabindex="-1" data-bs-backdrop="static" data-bs-keyboard="false">
    <div class="modal-dialog modal-sm">
        <div class="modal-content">
            <div class="modal-body text-center py-4">
                <div class="spinner-border text-primary mb-3" role="status">
                    <span class="visually-hidden">{% trans "Loading..." %}</span>
                </div>
                <h6>{% trans "Submitting candidate..." %}</h6>
                <p class="text-muted small">{% trans "Please wait while we process your submission." %}</p>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block customJS %}
<script>
document.addEventListener('DOMContentLoaded', function() {
    const fileInput = document.getElementById('resume');
    const fileUploadArea = document.getElementById('fileUploadArea');
    const uploadPlaceholder = document.getElementById('uploadPlaceholder');
    const filePreview = document.getElementById('filePreview');
    const fileName = document.getElementById('fileName');
    const removeFileBtn = document.getElementById('removeFile');
    const form = document.getElementById('candidateForm');
    const submitBtn = document.getElementById('submitBtn');

    // File upload area click handler
    fileUploadArea.addEventListener('click', function() {
        fileInput.click();
    });

    // Drag and drop handlers
    fileUploadArea.addEventListener('dragover', function(e) {
        e.preventDefault();
        this.classList.add('border-primary');
    });

    fileUploadArea.addEventListener('dragleave', function(e) {
        e.preventDefault();
        this.classList.remove('border-primary');
    });

    fileUploadArea.addEventListener('drop', function(e) {
        e.preventDefault();
        this.classList.remove('border-primary');

        const files = e.dataTransfer.files;
        if (files.length > 0) {
            fileInput.files = files;
            handleFileSelect(files[0]);
        }
    });

    // File input change handler
    fileInput.addEventListener('change', function() {
        if (this.files.length > 0) {
            handleFileSelect(this.files[0]);
        }
    });

    // Remove file handler
    removeFileBtn.addEventListener('click', function() {
        fileInput.value = '';
        uploadPlaceholder.classList.remove('d-none');
        filePreview.classList.add('d-none');
        fileUploadArea.classList.remove('has-file');
    });

    // Handle file selection
    function handleFileSelect(file) {
        // Validate file type
        const allowedTypes = ['application/pdf', 'application/msword', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'];
        if (!allowedTypes.includes(file.type)) {
            alert('{% trans "Please upload a PDF, DOC, or DOCX file." %}');
            return;
        }

        // Validate file size (5MB)
        const maxSize = 5 * 1024 * 1024; // 5MB in bytes
        if (file.size > maxSize) {
            alert('{% trans "File size must be less than 5MB." %}');
            return;
        }

        // Show file preview
        fileName.textContent = file.name;
        uploadPlaceholder.classList.add('d-none');
        filePreview.classList.remove('d-none');
        fileUploadArea.classList.add('has-file');
    }

    // Form submission handler
    form.addEventListener('submit', function(e) {
        e.preventDefault();

        // Show loading modal
        const loadingModal = new bootstrap.Modal(document.getElementById('loadingModal'));
        loadingModal.show();

        // Disable submit button
        submitBtn.disabled = true;
        submitBtn.innerHTML = '<i class="fas fa-spinner fa-spin me-1"></i> {% trans "Submitting..." %}';

        const formData = new FormData(this);

        fetch(this.action, {
            method: 'POST',
            body: formData,
            headers: {
                'X-Requested-With': 'XMLHttpRequest'
            }
        })
        .then(response => response.json())
        .then(data => {
            loadingModal.hide();

            if (data.success) {
                // Show success message
                const successAlert = document.createElement('div');
                successAlert.className = 'alert alert-success alert-dismissible fade show position-fixed';
                successAlert.style.cssText = 'position: fixed; top: 20px; right: 20px; z-index: 9999; min-width: 300px;';
                successAlert.innerHTML = `
                    <i class="fas fa-check-circle me-2"></i>
                    {% trans "Candidate submitted successfully!" %}
                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                `;
                document.body.appendChild(successAlert);

                // Reset form
                form.reset();
                fileInput.value = '';
                uploadPlaceholder.classList.remove('d-none');
                filePreview.classList.add('d-none');
                fileUploadArea.classList.remove('has-file');

                // Remove alert after 5 seconds
                setTimeout(() => {
                    if (successAlert.parentNode) {
                        successAlert.parentNode.removeChild(successAlert);
                    }
                }, 5000);

                // Redirect to assignment detail after 2 seconds
                setTimeout(() => {
                    window.location.href = '{% url "agency_portal_assignment_detail" assignment.slug %}';
                }, 2000);

            } else {
                // Show error message
                const errorAlert = document.createElement('div');
                errorAlert.className = 'alert alert-danger alert-dismissible fade show position-fixed';
                errorAlert.style.cssText = 'position: fixed; top: 20px; right: 20px; z-index: 9999; min-width: 300px;';
                errorAlert.innerHTML = `
                    <i class="fas fa-exclamation-triangle me-2"></i>
                    ${data.message || '{% trans "Error submitting candidate. Please try again." %}'}
                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                `;
                document.body.appendChild(errorAlert);

                // Remove alert after 5 seconds
                setTimeout(() => {
                    if (errorAlert.parentNode) {
                        errorAlert.parentNode.removeChild(errorAlert);
                    }
                }, 5000);
            }
        })
        .catch(error => {
            loadingModal.hide();
            console.error('Error:', error);

            const errorAlert = document.createElement('div');
            errorAlert.className = 'alert alert-danger alert-dismissible fade show position-fixed';
            errorAlert.style.cssText = 'position: fixed; top: 20px; right: 20px; z-index: 9999; min-width: 300px;';
            errorAlert.innerHTML = `
                <i class="fas fa-exclamation-triangle me-2"></i>
                {% trans "Network error. Please check your connection and try again." %}
                <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
            `;
            document.body.appendChild(errorAlert);
        })
        .finally(() => {
            // Re-enable submit button
            submitBtn.disabled = false;
            submitBtn.innerHTML = '<i class="fas fa-paper-plane me-1"></i> {% trans "Submit Candidate" %}';
        });
    });

    // Auto-focus on first field
    document.getElementById('first_name').focus();
});
</script>
{% endblock %}