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

{% block title %}Candidate Management - {{ job.title }} - University ATS{% 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; /* Standard success for positive actions */
        --kaauh-info: #17a2b8; /* Standard info/exam badge */
    }

    /* 1. Main Container & Card Styling */
    .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;
    }
    .tier-controls {
        background-color: var(--kaauh-border); /* Light background for control sections */
        border-radius: 0.5rem;
        padding: 1.25rem;
        margin-bottom: 1.5rem;
    }

    /* 2. Button Styling (from reference) */
    .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);
    }
    .btn-outline-secondary {
        color: var(--kaauh-teal-dark);
        border-color: var(--kaauh-teal);
    }
    .btn-outline-secondary:hover {
        background-color: var(--kaauh-teal-dark);
        color: white;
        border-color: var(--kaauh-teal-dark);
    }

    /* 3. Tab Styles (View Switcher) */
    .nav-pills .nav-link {
        color: var(--kaauh-teal-dark);
        font-weight: 500;
        border-radius: 0.5rem;
        transition: background-color 0.2s;
    }
    .nav-pills .nav-link.active {
        background-color: var(--kaauh-teal);
        color: white;
        font-weight: 600;
    }

    /* 4. Candidate Table Styling (Aligned with KAAT-S) */
    .candidate-table {
        border-collapse: separate;
        border-spacing: 0;
        background-color: white;
        border-radius: 0.5rem;
        overflow: hidden;
    }
    .candidate-table thead {
        background-color: var(--kaauh-border);
    }
    .candidate-table th {
        padding: 0.75rem;
        font-weight: 600;
        color: var(--kaauh-teal-dark);
        border-bottom: 2px solid var(--kaauh-teal);
    }
    .candidate-table td {
        padding: 0.75rem;
        border-bottom: 1px solid var(--kaauh-border);
        vertical-align: middle;
    }
    .candidate-table tbody tr:hover {
        background-color: #f1f3f4;
    }
    .candidate-name {
        font-weight: 600;
        color: var(--kaauh-primary-text);
    }
    .candidate-details {
        font-size: 0.8rem;
        color: #6c757d;
    }

    /* 5. Badges (Status/Score) */
    .status-badge {
        font-size: 0.8rem;
        padding: 0.3em 0.7em;
        border-radius: 0.35rem;
        font-weight: 700;
        text-transform: uppercase;
    }
    .bg-applicant { background-color: #6c757d; color: white; } /* Secondary */
    .bg-candidate { background-color: var(--kaauh-success); color: white; } /* Success */
    .bg-score { background-color: var(--kaauh-teal-dark); color: white; }
    .bg-exam-status { background-color: var(--kaauh-info); color: white; }

    /* 6. Stage Badges (More distinct from KAAT-S reference) */
    .stage-badge {
        font-size: 0.75rem;
        padding: 0.25rem 0.6rem;
        border-radius: 0.3rem;
        font-weight: 600;
    }
    .stage-Applied { background-color: #e9ecef; color: #495057; }
    .stage-Exam { background-color: #d1ecf1; color: #0c5460; } /* Light cyan/info */
    .stage-Interview { background-color: #ffc107; color: #856404; } /* Yellow/warning */
    .stage-Offer { background-color: #d4edda; color: #155724; } /* Light green/success */

    /* Candidate Indicator (used for the single Potential Candidates list) */
    .candidate-indicator-badge {
        font-size: 0.7rem;
        padding: 0.15rem 0.4rem;
        border-radius: 0.25rem;
        font-weight: 700;
        margin-left: 0.5rem;
        background-color: var(--kaauh-teal);
        color: white;
    }
</style>
{% endblock %}

{% block content %}
<div class="container py-4">
    <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-layer-group me-2"></i>
                {% trans "Applicant Screening for Job:" %} - {{ job.title }}&nbsp;&nbsp;<small class="text-muted fs-6">{{job.internal_job_id}}<small>
            </h1>
            <p class="text-muted mb-0">
                Total Applicants: <span class="fw-bold">{{ total_candidates }}</span>
            </p>
        </div>
        <a href="{% url 'job_detail' job.slug %}" class="btn btn-outline-secondary">
            <i class="fas fa-arrow-left me-1"></i> {% trans "Back to Job" %}
        </a>
    </div>

    <div class="tier-controls kaauh-card shadow-sm">
        <h4 class="h5 mb-3" style="color: var(--kaauh-teal-dark);">{% trans "Filter Potential Candidates" %}</h4>
        <form method="post" class="mb-0">
            {% csrf_token %}
            <div class="row g-3 align-items-end">
                
                <div class="col-md-3 col-sm-6">
                    <label for="min_ai_score" class="form-label small text-muted">
                        {% trans "Minimum AI Score" %}
                    </label>
                    <input type="number" name="min_ai_score" id="min_ai_score" class="form-control"
                           value="{{ min_ai_score|default:'0' }}" min="0" max="100" step="1"
                           placeholder="e.g., 75">
                </div>

                <div class="col-md-3 col-sm-6">
                    <label for="tier1_count" class="form-label small text-muted">
                        {% trans "Number of Potential Candidates (Top N)" %}
                    </label>
                    <input type="number" name="tier1_count" id="tier1_count" class="form-control"
                           value="{{ tier1_count }}" min="1" max="{{ total_candidates }}">
                </div>
                <div class="form-group">
                    <button type="submit" name="update_tiers" class="btn btn-primary">
                        <i class="fas fa-sync-alt me-1"></i> {% trans "Update Tiers" %}
                    </button>
                </div>
            </div>
        </form>
    </div>

    <!-- Tier Display -->
        <h2 class="h4 mb-3 mt-5">{% trans "Candidate Tiers" %}</h2>
        <div class="candidate-table-responsive" data-signals__ifmissing="{_fetching: false, selections: Array({{ candidates|length }}).fill(false)}">
            {% url "bulk_candidate_move_to_exam" as move_to_exam_url %}
            {% if candidates %}
                <button class="btn btn-primary"
                    data-attr="{disabled: !$selections.filter(Boolean).length}"
                    data-on-click="@post('{{move_to_exam_url}}',{
                        contentType: 'form',
                        selector: '#myform',
                        headers: {'X-CSRFToken': '{{ csrf_token }}'}})"
                    >Bulk Move To Exam</button>
            {% endif %}
                <form id="myform" action="{{move_to_exam_url}}" method="post">
                    <table class="candidate-table">
                        <thead>
                            <tr>
                                <th>
                                    {% if candidates %}
                                        <div class="form-check">
                                            <input
                                            data-bind-_all
                                            data-on-change="$selections = Array({{ candidates|length }}).fill($_all)"
                                            data-effect="$selections; $_all = $selections.every(Boolean)"
                                            data-attr-disabled="$_fetching"
                                            type="checkbox" class="form-check-input" id="candidate-{{ candidate.id }}">
                                        </div>
                                    {% endif %}
                                </th>
                                <th>{% trans "Name" %}</th>
                                <th>{% trans "Contact" %}</th>
                                <th>{% trans "AI Score" %}</th>
                                <th>{% trans "Status" %}</th>
                                <th>{% trans "Stage" %}</th>
                                <th>{% trans "Actions" %}</th>
                            </tr>
                        </thead>
                        <tbody>
                            {% for candidate in candidates %}
                            <tr>
                                <td>
                                    <div class="form-check">
                                        <input
                                        data-bind-selections
                                        data-attr-disabled="$_fetching"
                                        name="{{ candidate.id }}"

                                        type="checkbox" class="form-check-input" id="candidate-{{ candidate.id }}">
                                    </div>
                                </td>
                                <td>
                                    <div class="candidate-name">{{ candidate.name }}</div>
                                </td>
                                <td>
                                    <div class="candidate-details">
                                        Email: {{ candidate.email }}<br>
                                        Phone: {{ candidate.phone }}<br>
                                    </div>
                                </td>
                                <td>
                                    <span class="badge bg-success">{{ candidate.match_score|default:"0" }}</span>
                                </td>
                                <td>
                                    <span class="badge {% if candidate.applicant_status == 'Candidate' %}bg-success{% else %}bg-secondary{% endif %}">
                                        {{ candidate.get_applicant_status_display }}
                                    </span>
                                </td>
                                <td>
                                    <span class="stage-badge stage-{{ candidate.stage }}">
                                        {{ candidate.get_stage_display }}
                                    </span>
                                    {% if candidate.stage == "Exam" and candidate.exam_status %}
                                    <br>
                                    <span class="badge bg-info">{{ candidate.get_exam_status_display }}</span>
                                    {% endif %}
                                </td>
                                <td>
                                    <button class="btn btn-primary"
                                        data-bs-toggle="modal"
                                        data-bs-target="#candidateviewModal"
                                        hx-get="{% url 'candidate_criteria_view_htmx' candidate.pk %}"
                                        hx-target="#candidateviewModalBody"
                                        >
                                        {% include "icons/view.html" %}
                                        {% trans "View" %}</button>
                                        {% if candidate.stage != "Exam" %}
                                        <button hx-post="{% url 'candidate_move_to_exam' candidate.pk %}"
                                            hx-target=".candidate-table"
                                            hx-select=".candidate-table"
                                            hx-swap="outerHTML"
                                            class="btn btn-primary"> {% trans "Move to Exam" %} {% include "icons/right.html" %}</button>
                                        {% endif %}
                                </td>
                            </tr>
                            {% endfor %}
                        </tbody>
                    </table>
                </form>
            </div>
    <!-- Tab Content -->

<div class="modal fade modal-lg" id="candidateviewModal" tabindex="-1" aria-labelledby="candidateviewModalLabel" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="candidateviewModalLabel">Form Settings</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <div id="candidateviewModalBody" class="modal-body">

            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
            </div>
        </div>
    </div>
</div>
{% endblock %}