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

{% block title %}Delete Schedule Assignment - HR{% endblock %}

{% block content %}
<!-- BEGIN breadcrumb -->
<ol class="breadcrumb float-xl-end">
    <li class="breadcrumb-item"><a href="{% url 'core:dashboard' %}">Dashboard</a></li>
    <li class="breadcrumb-item"><a href="{% url 'hr:dashboard' %}">HR</a></li>
    <li class="breadcrumb-item"><a href="{% url 'hr:schedule_assignment_list' %}">Schedule Assignments</a></li>
    <li class="breadcrumb-item active">Delete Confirmation</li>
</ol>
<!-- END breadcrumb -->

<!-- BEGIN page-header -->
<h1 class="page-header">
    Delete Schedule Assignment
    <small>Confirmation Required</small>
</h1>
<!-- END page-header -->

<div class="row justify-content-center">
    <div class="col-xl-8">
        <!-- BEGIN panel -->
        <div class="panel panel-inverse">
            <div class="panel-heading">
                <h4 class="panel-title">
                    <i class="fa fa-exclamation-triangle text-warning me-2"></i>
                    Confirm Assignment Deletion
                </h4>
            </div>
            <div class="panel-body">
                <div class="alert alert-warning">
                    <h6 class="alert-heading">Warning</h6>
                    <p class="mb-0">You are about to delete this schedule assignment. This action cannot be undone and will affect time tracking and payroll calculations.</p>
                </div>

                <div class="row mb-4">
                    <div class="col-md-6">
                        <h6>Assignment Details:</h6>
                        <table class="table table-borderless">
                            <tr>
                                <td class="fw-bold" width="120">Employee:</td>
                                <td>{{ object.employee.get_full_name }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Employee ID:</td>
                                <td>{{ object.employee.employee_id }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Department:</td>
                                <td>{{ object.employee.department.name }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Schedule:</td>
                                <td>{{ object.schedule.name }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Schedule Type:</td>
                                <td>
                                    <span class="badge bg-primary">{{ object.schedule.get_schedule_type_display }}</span>
                                </td>
                            </tr>
                        </table>
                    </div>
                    <div class="col-md-6">
                        <h6>Assignment Period:</h6>
                        <table class="table table-borderless">
                            <tr>
                                <td class="fw-bold" width="120">Start Date:</td>
                                <td>{{ object.start_date|date:"M d, Y" }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">End Date:</td>
                                <td>{{ object.end_date|date:"M d, Y"|default:"Ongoing" }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Status:</td>
                                <td>
                                    <span class="badge bg-{% if object.status == 'ACTIVE' %}success{% elif object.status == 'PENDING' %}warning{% else %}secondary{% endif %}">
                                        {{ object.get_status_display }}
                                    </span>
                                </td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Days Active:</td>
                                <td>{{ object.days_active }} days</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Assigned By:</td>
                                <td>{{ object.assigned_by.get_full_name }}</td>
                            </tr>
                        </table>
                    </div>
                </div>

                <!-- Impact Assessment -->
                <div class="alert alert-info mb-4">
                    <h6 class="alert-heading">
                        <i class="fa fa-info-circle me-2"></i>Impact Assessment
                    </h6>
                    <ul class="mb-0">
                        <li><strong>Time Entries:</strong> {{ object.time_entries_count }} time entries will lose their schedule reference</li>
                        <li><strong>Payroll:</strong> Historical payroll calculations may be affected</li>
                        <li><strong>Attendance:</strong> Attendance tracking for this assignment will be lost</li>
                        <li><strong>Reports:</strong> Schedule-based reports may show incomplete data</li>
                        <li><strong>Audit Trail:</strong> Deletion will be logged for compliance purposes</li>
                    </ul>
                </div>

                <!-- Active Assignment Warning -->
                {% if object.status == 'ACTIVE' %}
                <div class="alert alert-danger mb-4">
                    <h6 class="alert-heading">
                        <i class="fa fa-exclamation-triangle me-2"></i>Active Assignment Warning
                    </h6>
                    <p class="mb-2">This is an active schedule assignment. Deleting it will:</p>
                    <ul class="mb-0">
                        <li>Immediately remove the employee from this schedule</li>
                        <li>Affect ongoing time tracking and attendance monitoring</li>
                        <li>Potentially disrupt current work assignments</li>
                        <li>Impact payroll calculations for the current period</li>
                    </ul>
                </div>
                {% endif %}

                <!-- Time Entries Warning -->
                {% if object.time_entries_count > 0 %}
                <div class="alert alert-warning mb-4">
                    <h6 class="alert-heading">
                        <i class="fa fa-clock me-2"></i>Time Entries Warning
                    </h6>
                    <p class="mb-0">This assignment has {{ object.time_entries_count }} associated time entries. These entries will remain but will lose their schedule reference, which may affect:</p>
                    <ul class="mb-0">
                        <li>Overtime calculations</li>
                        <li>Schedule compliance reporting</li>
                        <li>Performance metrics</li>
                    </ul>
                </div>
                {% endif %}

                <!-- Related Data Summary -->
                <div class="row mb-4">
                    <div class="col-md-3">
                        <div class="text-center p-3 border rounded">
                            <div class="fs-24px fw-bold text-primary">{{ object.time_entries_count }}</div>
                            <div class="small text-muted">Time Entries</div>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="text-center p-3 border rounded">
                            <div class="fs-24px fw-bold text-success">{{ object.total_hours_worked }}</div>
                            <div class="small text-muted">Hours Worked</div>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="text-center p-3 border rounded">
                            <div class="fs-24px fw-bold text-warning">{{ object.attendance_rate }}%</div>
                            <div class="small text-muted">Attendance Rate</div>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="text-center p-3 border rounded">
                            <div class="fs-24px fw-bold text-info">{{ object.overtime_hours }}</div>
                            <div class="small text-muted">Overtime Hours</div>
                        </div>
                    </div>
                </div>

                <!-- Alternative Actions -->
                <div class="card border-secondary mb-4">
                    <div class="card-header bg-light">
                        <h6 class="card-title mb-0">
                            <i class="fa fa-lightbulb me-2"></i>Alternative Actions
                        </h6>
                    </div>
                    <div class="card-body">
                        <p class="card-text">Consider these alternatives instead of deletion:</p>
                        <div class="row">
                            <div class="col-md-6">
                                <ul class="list-unstyled">
                                    <li class="mb-2">
                                        <i class="fa fa-pause text-warning me-2"></i>
                                        <a href="{% url 'hr:schedule_assignment_suspend' object.pk %}" class="text-decoration-none">
                                            Suspend the assignment
                                        </a>
                                    </li>
                                    <li class="mb-2">
                                        <i class="fa fa-calendar text-info me-2"></i>
                                        <a href="{% url 'hr:schedule_assignment_update' object.pk %}" class="text-decoration-none">
                                            Set an end date
                                        </a>
                                    </li>
                                </ul>
                            </div>
                            <div class="col-md-6">
                                <ul class="list-unstyled">
                                    <li class="mb-2">
                                        <i class="fa fa-exchange-alt text-primary me-2"></i>
                                        <a href="{% url 'hr:schedule_assignment_transfer' object.pk %}" class="text-decoration-none">
                                            Transfer to different schedule
                                        </a>
                                    </li>
                                    <li class="mb-2">
                                        <i class="fa fa-archive text-secondary me-2"></i>
                                        Archive the assignment
                                    </li>
                                </ul>
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Deletion Form -->
                <form method="post" id="delete-form">
                    {% csrf_token %}
                    
                    <div class="card border-danger">
                        <div class="card-header bg-danger text-white">
                            <h6 class="card-title mb-0">
                                <i class="fa fa-trash me-2"></i>Deletion Confirmation
                            </h6>
                        </div>
                        <div class="card-body">
                            <div class="form-check mb-3">
                                <input class="form-check-input" type="checkbox" id="confirm-understanding" required>
                                <label class="form-check-label" for="confirm-understanding">
                                    I understand that this action will permanently delete the schedule assignment and cannot be undone
                                </label>
                            </div>
                            
                            {% if object.status == 'ACTIVE' %}
                            <div class="form-check mb-3">
                                <input class="form-check-input" type="checkbox" id="confirm-active" required>
                                <label class="form-check-label" for="confirm-active">
                                    I acknowledge that this is an active assignment and deleting it will immediately affect the employee's schedule
                                </label>
                            </div>
                            {% endif %}
                            
                            {% if object.time_entries_count > 0 %}
                            <div class="form-check mb-3">
                                <input class="form-check-input" type="checkbox" id="confirm-time-entries" required>
                                <label class="form-check-label" for="confirm-time-entries">
                                    I understand that {{ object.time_entries_count }} time entries will lose their schedule reference
                                </label>
                            </div>
                            {% endif %}
                            
                            <div class="mb-3">
                                <label class="form-label">Reason for Deletion <span class="text-danger">*</span></label>
                                <select class="form-select" name="deletion_reason" required>
                                    <option value="">Select reason...</option>
                                    <option value="EMPLOYEE_TERMINATED">Employee terminated</option>
                                    <option value="SCHEDULE_CHANGED">Schedule changed</option>
                                    <option value="DEPARTMENT_TRANSFER">Department transfer</option>
                                    <option value="DUPLICATE_ASSIGNMENT">Duplicate assignment</option>
                                    <option value="ERROR">Created in error</option>
                                    <option value="REORGANIZATION">Department reorganization</option>
                                    <option value="OTHER">Other</option>
                                </select>
                            </div>
                            
                            <div class="mb-3">
                                <label class="form-label">Additional Notes</label>
                                <textarea class="form-control" name="deletion_notes" rows="3" 
                                         placeholder="Provide additional details about why this assignment is being deleted..."></textarea>
                            </div>
                            
                            <div class="form-check">
                                <input class="form-check-input" type="checkbox" name="notify_employee" id="notify-employee" checked>
                                <label class="form-check-label" for="notify-employee">
                                    Notify employee about schedule assignment removal
                                </label>
                            </div>
                        </div>
                    </div>

                    <!-- Action Buttons -->
                    <div class="d-flex justify-content-between mt-4">
                        <div>
                            <a href="{% url 'hr:schedule_assignment_detail' object.pk %}" class="btn btn-secondary">
                                <i class="fa fa-arrow-left me-2"></i>Cancel
                            </a>
                            <a href="{% url 'hr:schedule_assignment_suspend' object.pk %}" class="btn btn-warning ms-2">
                                <i class="fa fa-pause me-2"></i>Suspend Instead
                            </a>
                        </div>
                        <button type="submit" class="btn btn-danger" id="delete-btn" disabled>
                            <i class="fa fa-trash me-2"></i>Delete Assignment
                        </button>
                    </div>
                </form>
            </div>
        </div>
        <!-- END panel -->
    </div>
</div>
{% endblock %}

{% block js %}
<script>
$(document).ready(function() {
    // Enable/disable delete button based on checkboxes
    function updateDeleteButton() {
        var allChecked = true;
        $('input[type="checkbox"][required]').each(function() {
            if (!$(this).is(':checked')) {
                allChecked = false;
                return false;
            }
        });
        
        var reasonSelected = $('select[name="deletion_reason"]').val() !== '';
        
        $('#delete-btn').prop('disabled', !(allChecked && reasonSelected));
    }
    
    // Check on checkbox change
    $('input[type="checkbox"], select[name="deletion_reason"]').on('change', updateDeleteButton);
    
    // Form submission confirmation
    $('#delete-form').on('submit', function(e) {
        var confirmText = 'Are you absolutely sure you want to delete this schedule assignment for {{ object.employee.get_full_name }}?';
        {% if object.status == 'ACTIVE' %}
        confirmText += '\n\nThis is an ACTIVE assignment and will immediately affect the employee!';
        {% endif %}
        {% if object.time_entries_count > 0 %}
        confirmText += '\n\n{{ object.time_entries_count }} time entries will lose their schedule reference!';
        {% endif %}
        confirmText += '\n\nThis action cannot be undone.';
        
        if (!confirm(confirmText)) {
            e.preventDefault();
        }
    });
});
</script>
{% endblock %}