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

{% block title %}{% trans "Sales Pipeline" %}{% endblock %}

{% block header.add_script %}
<style>
    .kanban-board {
        display: flex;
        overflow-x: auto;
        padding: 20px 0;
        min-height: 600px;
    }
    .kanban-column {
        background: #f8f9fa;
        border-radius: 8px;
        margin: 0 10px;
        min-width: 280px;
        max-width: 280px;
        padding: 15px;
    }
    .kanban-header {
        background: #007bff;
        color: white;
        padding: 12px 15px;
        border-radius: 8px 8px 0 0;
        margin: -15px -15px 15px -15px;
        font-weight: bold;
        text-align: center;
    }
    .kanban-header.prospect { background: #6c757d; }
    .kanban-header.qualified { background: #17a2b8; }
    .kanban-header.proposal { background: #ffc107; color: #000; }
    .kanban-header.negotiation { background: #fd7e14; }
    .kanban-header.closed_won { background: #28a745; }
    .kanban-header.closed_lost { background: #dc3545; }
    
    .lead-card {
        background: white;
        border-radius: 8px;
        padding: 15px;
        margin-bottom: 15px;
        border: 1px solid #e0e0e0;
        cursor: pointer;
        transition: box-shadow 0.3s ease;
    }
    .lead-card:hover {
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }
    .lead-priority {
        padding: 3px 8px;
        border-radius: 12px;
        font-size: 0.7rem;
        font-weight: bold;
    }
    .priority-urgent { background: #ffebee; color: #c62828; }
    .priority-high { background: #fff3e0; color: #f57c00; }
    .priority-medium { background: #e3f2fd; color: #1976d2; }
    .priority-low { background: #f3e5f5; color: #7b1fa2; }
    
    .lead-value {
        font-size: 1.1rem;
        font-weight: bold;
        color: #28a745;
    }
    .lead-meta {
        font-size: 0.8rem;
        color: #6c757d;
    }
    .overdue-indicator {
        color: #dc3545;
        font-weight: bold;
    }
    .filter-section {
        background: #f8f9fa;
        padding: 20px;
        border-radius: 8px;
        margin-bottom: 20px;
    }
    .pipeline-stats {
        background: white;
        border-radius: 8px;
        padding: 20px;
        margin-bottom: 20px;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
    .stat-item {
        text-align: center;
        padding: 15px;
    }
    .stat-value {
        font-size: 1.5rem;
        font-weight: bold;
        color: #007bff;
    }
    .stat-label {
        font-size: 0.9rem;
        color: #6c757d;
    }
</style>
{% endblock %}

{% block content %}
<div class="content container-fluid">
    <div class="page-header">
        <div class="row">
            <div class="col-sm-12">
                <h3 class="page-title">{% trans "Sales Pipeline" %}</h3>
                <ul class="breadcrumb">
                    <li class="breadcrumb-item"><a href="{% url 'panel-manager-dashboard' %}">{% trans "Dashboard" %}</a></li>
                    <li class="breadcrumb-item active">{% trans "Sales Pipeline" %}</li>
                </ul>
            </div>
        </div>
    </div>

    <!-- Pipeline Statistics -->
    <div class="pipeline-stats">
        <div class="row">
            <div class="col-md-2">
                <div class="stat-item">
                    <div class="stat-value">{{ lead_stats.prospects|default:0 }}</div>
                    <div class="stat-label">{% trans "Prospects" %}</div>
                </div>
            </div>
            <div class="col-md-2">
                <div class="stat-item">
                    <div class="stat-value">{{ lead_stats.qualified|default:0 }}</div>
                    <div class="stat-label">{% trans "Qualified" %}</div>
                </div>
            </div>
            <div class="col-md-2">
                <div class="stat-item">
                    <div class="stat-value">{{ lead_stats.proposal|default:0 }}</div>
                    <div class="stat-label">{% trans "Proposal" %}</div>
                </div>
            </div>
            <div class="col-md-2">
                <div class="stat-item">
                    <div class="stat-value">{{ lead_stats.negotiation|default:0 }}</div>
                    <div class="stat-label">{% trans "Negotiation" %}</div>
                </div>
            </div>
            <div class="col-md-2">
                <div class="stat-item">
                    <div class="stat-value">{{ lead_stats.closed_won|default:0 }}</div>
                    <div class="stat-label">{% trans "Closed Won" %}</div>
                </div>
            </div>
            <div class="col-md-2">
                <div class="stat-item">
                    <div class="stat-value">{{ lead_stats.closed_lost|default:0 }}</div>
                    <div class="stat-label">{% trans "Closed Lost" %}</div>
                </div>
            </div>
        </div>
    </div>

    <!-- Filters Section -->
    <div class="filter-section">
        <form method="GET" class="row">
            <div class="col-md-3">
                <label for="status">{% trans "Status" %}</label>
                <select class="form-control" id="status" name="status">
                    <option value="">{% trans "All Statuses" %}</option>
                    {% for status_code, status_name in status_choices %}
                    <option value="{{ status_code }}" {% if status_filter == status_code %}selected{% endif %}>
                        {{ status_name }}
                    </option>
                    {% endfor %}
                </select>
            </div>
            <div class="col-md-2">
                <label for="priority">{% trans "Priority" %}</label>
                <select class="form-control" id="priority" name="priority">
                    <option value="">{% trans "All" %}</option>
                    {% for priority_code, priority_name in priority_choices %}
                    <option value="{{ priority_code }}" {% if priority_filter == priority_code %}selected{% endif %}>
                        {{ priority_name }}
                    </option>
                    {% endfor %}
                </select>
            </div>
            <div class="col-md-3">
                <label for="assigned">{% trans "Assigned To" %}</label>
                <select class="form-control" id="assigned" name="assigned">
                    <option value="">{% trans "All Managers" %}</option>
                    {% for manager in managers %}
                    <option value="{{ manager.id }}" {% if assigned_filter == manager.id|stringformat:"s" %}selected{% endif %}>
                        {{ manager.first_name }} {{ manager.last_name }}
                    </option>
                    {% endfor %}
                </select>
            </div>
            <div class="col-md-2">
                <label>&nbsp;</label>
                <button type="submit" class="btn btn-primary form-control">{% trans "Filter" %}</button>
            </div>
            <div class="col-md-2">
                <label>&nbsp;</label>
                <button type="button" class="btn btn-success form-control" onclick="showCreateLeadModal()">
                    <i class="fa fa-plus"></i> {% trans "New Lead" %}
                </button>
            </div>
        </form>
    </div>

    <!-- Kanban Board -->
    <div class="kanban-board">
        {% for status_code, status_name in status_choices %}
        <div class="kanban-column">
            <div class="kanban-header {{ status_code }}">
                {{ status_name }}
                <span class="badge badge-light ml-2">
                    {% if status_code == 'prospect' %}{{ lead_stats.prospects|default:0 }}{% endif %}
                    {% if status_code == 'qualified' %}{{ lead_stats.qualified|default:0 }}{% endif %}
                    {% if status_code == 'proposal' %}{{ lead_stats.proposal|default:0 }}{% endif %}
                    {% if status_code == 'negotiation' %}{{ lead_stats.negotiation|default:0 }}{% endif %}
                    {% if status_code == 'closed_won' %}{{ lead_stats.closed_won|default:0 }}{% endif %}
                    {% if status_code == 'closed_lost' %}{{ lead_stats.closed_lost|default:0 }}{% endif %}
                    {% if status_code == 'on_hold' %}0{% endif %}
                </span>
            </div>
            <div class="kanban-content" data-status="{{ status_code }}">
                {% for lead in leads %}
                {% if lead.status == status_code %}
                <div class="lead-card" onclick="showLeadDetails({{ lead.id }})">
                    <div class="d-flex justify-content-between align-items-start mb-2">
                        <h6 class="mb-1">{{ lead.company_name }}</h6>
                        <span class="lead-priority priority-{{ lead.priority }}">
                            {{ lead.get_priority_display }}
                        </span>
                    </div>
                    
                    <p class="mb-2">{{ lead.contact_name }}</p>
                    <p class="mb-2">{{ lead.contact_email }}</p>
                    
                    <div class="lead-value mb-2">
                        ${{ lead.estimated_value|floatformat:0 }}
                    </div>
                    
                    <div class="lead-meta">
                        <div>{% trans "Licenses:" %} {{ lead.estimated_licenses }}</div>
                        {% if lead.next_follow_up_date %}
                            <div class="{% if lead.is_overdue %}overdue-indicator{% endif %}">
                                {% trans "Follow-up:" %} {{ lead.next_follow_up_date|date:"M d" }}
                                {% if lead.is_overdue %}({% trans "Overdue" %}){% endif %}
                            </div>
                        {% endif %}
                        {% if lead.assigned_to %}
                            <div>{% trans "Assigned to:" %} {{ lead.assigned_to.first_name }}</div>
                        {% endif %}
                        <div>{% trans "Updated:" %} {{ lead.updated_at|timesince }} {% trans "ago" %}</div>
                    </div>
                </div>
                {% endif %}
                {% empty %}
                <div class="text-center text-muted py-3">
                    <i class="fa fa-inbox"></i><br>
                    {% trans "No leads" %}
                </div>
                {% endfor %}
            </div>
        </div>
        {% endfor %}
    </div>
</div>

<!-- Create Lead Modal -->
<div class="modal fade" id="createLeadModal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-lg" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">{% trans "Add New Lead" %}</h5>
                <button type="button" class="close" data-dismiss="modal">
                    <span>&times;</span>
                </button>
            </div>
            <div class="modal-body">
                <form id="createLeadForm">
                    <div class="row">
                        <div class="col-md-6">
                            <div class="form-group">
                                <label>{% trans "Company Name" %} *</label>
                                <input type="text" class="form-control" name="company_name" required>
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="form-group">
                                <label>{% trans "Industry" %}</label>
                                <input type="text" class="form-control" name="industry">
                            </div>
                        </div>
                    </div>
                    <div class="row">
                        <div class="col-md-4">
                            <div class="form-group">
                                <label>{% trans "Contact Name" %} *</label>
                                <input type="text" class="form-control" name="contact_name" required>
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="form-group">
                                <label>{% trans "Contact Email" %} *</label>
                                <input type="email" class="form-control" name="contact_email" required>
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="form-group">
                                <label>{% trans "Contact Phone" %} *</label>
                                <input type="text" class="form-control" name="contact_phone" required>
                            </div>
                        </div>
                    </div>
                    <div class="row">
                        <div class="col-md-3">
                            <div class="form-group">
                                <label>{% trans "Status" %}</label>
                                <select class="form-control" name="status">
                                    {% for status_code, status_name in status_choices %}
                                    <option value="{{ status_code }}">{{ status_name }}</option>
                                    {% endfor %}
                                </select>
                            </div>
                        </div>
                        <div class="col-md-3">
                            <div class="form-group">
                                <label>{% trans "Priority" %}</label>
                                <select class="form-control" name="priority">
                                    {% for priority_code, priority_name in priority_choices %}
                                    <option value="{{ priority_code }}">{{ priority_name }}</option>
                                    {% endfor %}
                                </select>
                            </div>
                        </div>
                        <div class="col-md-3">
                            <div class="form-group">
                                <label>{% trans "Estimated Licenses" %}</label>
                                <input type="number" class="form-control" name="estimated_licenses" min="0">
                            </div>
                        </div>
                        <div class="col-md-3">
                            <div class="form-group">
                                <label>{% trans "Estimated Value ($)" %}</label>
                                <input type="number" step="0.01" class="form-control" name="estimated_value" min="0">
                            </div>
                        </div>
                    </div>
                    <div class="row">
                        <div class="col-md-6">
                            <div class="form-group">
                                <label>{% trans "Lead Source" %}</label>
                                <input type="text" class="form-control" name="source">
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="form-group">
                                <label>{% trans "Next Follow-up Date" %}</label>
                                <input type="date" class="form-control" name="next_follow_up_date">
                            </div>
                        </div>
                    </div>
                    <div class="form-group">
                        <label>{% trans "Notes" %}</label>
                        <textarea class="form-control" name="notes" rows="3"></textarea>
                    </div>
                    <div class="form-group">
                        <label>{% trans "Next Action Required" %}</label>
                        <textarea class="form-control" name="next_action" rows="2"></textarea>
                    </div>
                </form>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-dismiss="modal">{% trans "Cancel" %}</button>
                <button type="button" class="btn btn-primary" onclick="createLead()">{% trans "Create Lead" %}</button>
            </div>
        </div>
    </div>
</div>

<!-- Lead Details Modal -->
<div class="modal fade" id="leadDetailsModal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-lg" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">{% trans "Lead Details" %}</h5>
                <button type="button" class="close" data-dismiss="modal">
                    <span>&times;</span>
                </button>
            </div>
            <div class="modal-body" id="leadDetailsContent">
                <!-- Lead details will be loaded here -->
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-dismiss="modal">{% trans "Close" %}</button>
                <button type="button" class="btn btn-primary" onclick="editCurrentLead()">{% trans "Edit Lead" %}</button>
            </div>
        </div>
    </div>
</div>

<script>
let currentLeadId = null;

function showCreateLeadModal() {
    $('#createLeadModal').modal('show');
}

function createLead() {
    const form = document.getElementById('createLeadForm');
    const formData = new FormData(form);
    const data = {};
    
    formData.forEach((value, key) => {
        data[key] = value;
    });
    
    fetch('{% url "panel-manager-create-lead-ajax" %}', {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
            'X-CSRFToken': '{{ csrf_token }}'
        },
        body: JSON.stringify(data)
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            alert('{% trans "Lead created successfully!" %}');
            location.reload();
        } else {
            alert('{% trans "Error:" %} ' + data.message);
        }
    })
    .catch(error => {
        console.error('Error:', error);
        alert('{% trans "An error occurred while creating the lead" %}');
    });
}

function showLeadDetails(leadId) {
    currentLeadId = leadId;
    // Load lead details via AJAX
    // For now, just show a placeholder
    document.getElementById('leadDetailsContent').innerHTML = 
        '<p>{% trans "Loading lead details..." %} (Lead ID: ' + leadId + ')</p>';
    $('#leadDetailsModal').modal('show');
}

function editCurrentLead() {
    if (currentLeadId) {
        alert('{% trans "Edit functionality coming soon for lead" %} #' + currentLeadId);
    }
}

function updateLeadStatus(leadId, newStatus) {
    fetch('{% url "panel-manager-update-lead-status-ajax" %}', {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
            'X-CSRFToken': '{{ csrf_token }}'
        },
        body: JSON.stringify({
            lead_id: leadId,
            status: newStatus
        })
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            location.reload();
        } else {
            alert('{% trans "Error:" %} ' + data.message);
        }
    })
    .catch(error => {
        console.error('Error:', error);
        alert('{% trans "An error occurred while updating the lead status" %}');
    });
}

// Add drag and drop functionality for lead cards
document.addEventListener('DOMContentLoaded', function() {
    // Basic drag and drop implementation would go here
    // This is a simplified version - full implementation would include
    // drag events, drop zones, and AJAX updates
});
</script>
{% endblock %}