{% extends "base.html" %}
{% load static %}

{% block title %}{{ job.title }} - Applicants{% endblock %}

{% block customCSS %}
<style>
.job-applicants-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.job-header {
    background: linear-gradient(135deg, #00636e 0%, #004a53 100%);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    margin-bottom: 2rem;
    position: relative;
}

.job-header h1 {
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    font-weight: 700;
}

.job-header p {
    margin: 0;
    font-size: 1.1rem;
    opacity: 0.9;
}

.job-meta {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.job-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.filters-section {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #333;
}

.filter-group select,
.filter-group input {
    padding: 0.75rem;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: #00636e;
    box-shadow: 0 0 0 3px rgba(0, 99, 110, 0.1);
}

.filters-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-filter {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: #00636e;
    color: white;
}

.btn-primary:hover {
    background: #004a53;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    border-left: 4px solid #00636e;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #00636e;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #666;
    font-size: 0.9rem;
}

.applicants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.applicant-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
}

.applicant-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-color: #00636e;
}

.applicant-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.applicant-info {
    flex: 1;
}

.applicant-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 0.25rem;
}

.applicant-email {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.applicant-phone {
    color: #666;
    font-size: 0.9rem;
}

.applicant-stage {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    white-space: nowrap;
}

.stage-applied { background: #6c757d; color: white; }
.stage-screening { background: #17a2b8; color: white; }
.stage-exam { background: #ffc107; color: #212529; }
.stage-interview { background: #007bff; color: white; }
.stage-document_review { background: #6f42c1; color: white; }
.stage-offer { background: #28a745; color: white; }
.stage-hired { background: #20c997; color: white; }
.stage-rejected { background: #dc3545; color: white; }

.applicant-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.85rem;
    color: #666;
}

.ai-score {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-weight: 600;
}

.ai-score.low { background: linear-gradient(135deg, #dc3545, #c82333); }
.ai-score.medium { background: linear-gradient(135deg, #ffc107, #e0a800); }
.ai-score.high { background: linear-gradient(135deg, #28a745, #20c997); }

.applicant-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-action {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.btn-view-profile {
    background: #007bff;
    color: white;
}

.btn-view-profile:hover {
    background: #0056b3;
}

.btn-schedule-interview {
    background: #28a745;
    color: white;
}

.btn-schedule-interview:hover {
    background: #1e7e34;
}

.btn-send-email {
    background: #6c757d;
    color: white;
}

.btn-send-email:hover {
    background: #5a6268;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.pagination a,
.pagination span {
    padding: 0.75rem 1rem;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: all 0.3s ease;
}

.pagination a:hover {
    background: #00636e;
    color: white;
    border-color: #00636e;
}

.pagination .current {
    background: #00636e;
    color: white;
    border-color: #00636e;
}

.no-results {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.no-results h3 {
    color: #333;
    margin-bottom: 1rem;
}

.no-results p {
    color: #666;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .job-applicants-container {
        padding: 1rem;
    }

    .filters-grid {
        grid-template-columns: 1fr;
    }

    .applicants-grid {
        grid-template-columns: 1fr;
    }

    .stats-section {
        grid-template-columns: 1fr;
    }

    .job-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}
</style>
{% endblock %}

{% block content %}
<div class="job-applicants-container">
    <!-- Job Header -->
    <div class="job-header">
        <h1>{{ job.title }}</h1>
        <p>{{ job.department|default:"General" }} • {{ job.get_job_type_display }} • {{ job.get_workplace_type_display }}</p>
        <div class="job-meta">
            <div class="job-meta-item">
                <span></span>
                <span>{{ total_applications }} Total Applicants</span>
            </div>
            {% if job.max_applications %}
                <div class="job-meta-item">
                    <span></span>
                    <span>{{ job.max_applications }} Positions Available</span>
                </div>
            {% endif %}
            <div class="job-meta-item">
                <span></span>
                <span>Posted {{ job.created_at|date:"M d, Y" }}</span>
            </div>
        </div>
    </div>

    <!-- Statistics Section -->
    <div class="stats-section">
        <div class="stat-card">
            <div class="stat-number">{{ total_applications }}</div>
            <div class="stat-label">Total Applications</div>
        </div>

        {% for stage_key, stage_data in stage_stats.items %}
            <div class="stat-card">
                <div class="stat-number">{{ stage_data.count }}</div>
                <div class="stat-label">{{ stage_data.label }}</div>
            </div>
        {% endfor %}

        {% if ai_score_stats.average %}
            <div class="stat-card">
                <div class="stat-number">{{ ai_score_stats.average|floatformat:1 }}</div>
                <div class="stat-label">Average AI Score</div>
            </div>
        {% endif %}
    </div>

    <!-- Filters Section -->
    <div class="filters-section">
        <form method="GET" class="filters-form">
            <div class="filters-grid">
                <!-- Search Box -->
                <div class="filter-group">
                    <label for="search"> Search Applicants</label>
                    <input
                        type="text"
                        id="search"
                        name="q"
                        value="{{ search_query }}"
                        placeholder="Search by name, email, or phone..."
                    >
                </div>

                <!-- Stage Filter -->
                <div class="filter-group">
                    <label for="stage"> Application Stage</label>
                    <select id="stage" name="stage">
                        <option value="">All Stages</option>
                        {% for key, value in stage_choices %}
                            <option value="{{ key }}" {% if stage_filter == key %}selected{% endif %}>
                                {{ value }}
                            </option>
                        {% endfor %}
                    </select>
                </div>

                <!-- AI Score Range -->
                <div class="filter-group">
                    <label for="min_ai_score"> Min AI Score</label>
                    <input
                        type="number"
                        id="min_ai_score"
                        name="min_ai_score"
                        value="{{ min_ai_score }}"
                        placeholder="0"
                        min="0"
                        max="100"
                    >
                </div>

                <div class="filter-group">
                    <label for="max_ai_score"> Max AI Score</label>
                    <input
                        type="number"
                        id="max_ai_score"
                        name="max_ai_score"
                        value="{{ max_ai_score }}"
                        placeholder="100"
                        min="0"
                        max="100"
                    >
                </div>

                <!-- Date Range -->
                <div class="filter-group">
                    <label for="date_from"> From Date</label>
                    <input
                        type="date"
                        id="date_from"
                        name="date_from"
                        value="{{ date_from }}"
                    >
                </div>

                <div class="filter-group">
                    <label for="date_to"> To Date</label>
                    <input
                        type="date"
                        id="date_to"
                        name="date_to"
                        value="{{ date_to }}"
                    >
                </div>

                <!-- Sort By -->
                <div class="filter-group">
                    <label for="sort"> Sort By</label>
                    <select id="sort" name="sort">
                        <option value="-created_at" {% if sort_by == '-created_at' %}selected{% endif %}>Newest First</option>
                        <option value="created_at" {% if sort_by == 'created_at' %}selected{% endif %}>Oldest First</option>
                        <option value="person__first_name" {% if sort_by == 'person__first_name' %}selected{% endif %}>Name (A-Z)</option>
                        <option value="-person__first_name" {% if sort_by == '-person__first_name' %}selected{% endif %}>Name (Z-A)</option>
                        <option value="stage" {% if sort_by == 'stage' %}selected{% endif %}>Stage</option>
                    </select>
                </div>
            </div>

            <!-- Filter Actions -->
            <div class="filters-actions">
                <button type="submit" class="btn-filter btn-primary">
                     Apply Filters
                </button>
                <a href="{% url 'job_applicants' job.slug %}" class="btn-filter btn-secondary">
                     Clear All
                </a>
            </div>
        </form>
    </div>

    <!-- Applicants Grid -->
    {% if page_obj.object_list %}
        <div class="applicants-grid">
            {% for application in page_obj.object_list %}
                <div class="applicant-card">
                    <!-- Applicant Header -->
                    <div class="applicant-header">
                        <div class="applicant-info">
                            <div class="applicant-name">
                                {{ application.person.first_name }} {{ application.person.last_name }}
                            </div>
                            <div class="applicant-email">{{ application.person.email }}</div>
                            {% if application.person.phone %}
                                <div class="applicant-phone">{{ application.person.phone }}</div>
                            {% endif %}
                        </div>
                        <div class="applicant-stage stage-{{ application.stage|lower }}">
                            {{ application.get_stage_display }}
                        </div>
                    </div>

                    <!-- Applicant Meta -->
                    <div class="applicant-meta">
                        <div class="meta-item">
                            <span></span>
                            <span>Applied {{ application.created_at|date:"M d, Y" }}</span>
                        </div>
                        {% if application.ai_analysis_data.analysis_data_en.match_score %}
                            <div class="meta-item">
                                <span></span>
                                <span class="ai-score {% if application.ai_analysis_data.analysis_data_en.match_score >= 75 %}high{% elif application.ai_analysis_data.analysis_data_en.match_score >= 50 %}medium{% else %}low{% endif %}">
                                    {{ application.ai_analysis_data.analysis_data_en.match_score }}%
                                </span>
                            </div>
                        {% endif %}
                        {% if application.person.gpa %}
                            <div class="meta-item">
                                <span></span>
                                <span>GPA: {{ application.person.gpa|floatformat:2 }}</span>
                            </div>
                        {% endif %}
                    </div>

                    <!-- Applicant Actions -->
                    <div class="applicant-actions">
                        {% comment %} <a href="{% url 'person_detail' application.person.pk %}" class="btn-action btn-view-profile">
                            👁️ Profile
                        </a> {% endcomment %}
                        <a href="{% url 'application_detail' application.slug %}" class="btn-filter btn-primary btn-sm">
                             Application
                        </a>
                        {% if application.stage == 'Interview' %}
                            <a href="{% url 'interview_list' %}" class="btn-filter btn-primary btn-sm">
                             Schedule
                            </a>
                        {% endif %}
                        <a href="{% url 'message_create' %}?job={{ job.pk }}&candidate={{ application.pk }}" class="btn-filter btn-primary btn-sm">
                            ✉️ Email
                        </a>
                    </div>
                </div>
            {% endfor %}
        </div>

        <!-- Pagination -->
        {% if page_obj.has_other_pages %}
            <div class="pagination">
                {% if page_obj.has_previous %}
                    <a href="?page=1{% if request.GET.urlencode %}&{{ request.GET.urlencode }}{% endif %}">« First</a>
                    <a href="?page={{ page_obj.previous_page_number }}{% if request.GET.urlencode %}&{{ request.GET.urlencode }}{% endif %}">‹ Previous</a>
                {% endif %}

                <span class="current">
                    Page {{ page_obj.number }} of {{ page_obj.paginator.num_pages }}
                </span>

                {% if page_obj.has_next %}
                    <a href="?page={{ page_obj.next_page_number }}{% if request.GET.urlencode %}&{{ request.GET.urlencode }}{% endif %}">Next ›</a>
                    <a href="?page={{ page_obj.paginator.num_pages }}{% if request.GET.urlencode %}&{{ request.GET.urlencode }}{% endif %}">Last »</a>
                {% endif %}
            </div>
        {% endif %}
    {% else %}
        <!-- No Results -->
        <div class="no-results">
            <h3>😔 No Applicants Found</h3>
            <p>
                {% if search_query or stage_filter or min_ai_score or max_ai_score or date_from or date_to %}
                    We couldn't find any applicants matching your current filters. Try adjusting your search criteria or clearing some filters.
                {% else %}
                    There are currently no applicants for this job.
                {% endif %}
            </p>
            <a href="{% url 'job_applicants' job.slug %}" class="btn-filter btn-primary">
                🔄 Clear Filters
            </a>
        </div>
    {% endif %}
</div>
{% endblock %}