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

{% block title %}Subscription & Billing - {{ organization.name }}{% endblock %}

{% block page_pretitle %}Billing Dashboard{% endblock %}
{% block page_title %}Subscription & Billing{% endblock %}

{% block page_actions %}
<a href="{% url 'tenants:pricing' %}" class="btn btn-outline-primary">
    <i class="ti ti-eye me-2"></i>View All Plans
</a>
<a href="{% url 'tenants:credit_topup' %}" class="btn btn-success">
    <i class="ti ti-coins me-2"></i>Buy Credits
</a>
{% endblock %}

{% block extra_css %}
<style>
    .subscription-hero {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        padding: 2.5rem;
        border-radius: 12px;
        margin-bottom: 2rem;
    }
    
    .plan-badge {
        display: inline-block;
        padding: 0.5rem 1rem;
        background: rgba(255, 255, 255, 0.2);
        border-radius: 50px;
        font-weight: 600;
    }
    
    .stat-card {
        background: white;
        border-radius: 12px;
        padding: 1.5rem;
        border: 1px solid #e5e7eb;
        height: 100%;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .stat-value {
        font-size: 2rem;
        font-weight: bold;
        margin-bottom: 0.5rem;
    }
    
    .progress-bar-container {
        background: #e5e7eb;
        height: 30px;
        border-radius: 15px;
        overflow: hidden;
        margin: 1rem 0;
    }
    
    .progress-bar-fill {
        height: 100%;
        background: linear-gradient(90deg, #10b981 0%, #059669 100%);
        transition: width 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-weight: 600;
    }
    
    .progress-bar-fill.warning {
        background: linear-gradient(90deg, #f59e0b 0%, #d97706 100%);
    }
    
    .progress-bar-fill.danger {
        background: linear-gradient(90deg, #ef4444 0%, #dc2626 100%);
    }
    
    .usage-stats {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1rem;
        margin-top: 1.5rem;
    }
    
    .usage-stat {
        background: #f9fafb;
        padding: 1rem;
        border-radius: 8px;
        text-align: center;
    }
    
    .invoice-mini-card {
        background: white;
        border: 1px solid #e5e7eb;
        border-radius: 8px;
        padding: 1rem;
        margin-bottom: 0.75rem;
        cursor: pointer;
        transition: all 0.3s ease;
    }
    
    .invoice-mini-card:hover {
        border-color: #667eea;
        box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
    }
    
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }
    
    .feature-item {
        display: flex;
        align-items: center;
        padding: 0.75rem;
        background: #f8f9fa;
        border-radius: 8px;
    }
    
    .feature-enabled {
        color: #10b981;
    }
    
    .feature-disabled {
        color: #d1d5db;
    }
</style>
{% endblock %}

{% block content %}

<!-- Subscription Hero -->
<div class="subscription-hero">
    <div class="row align-items-center">
        <div class="col-md-8">
            <h2 class="mb-2">{{ organization.name }}</h2>
            <div class="plan-badge mb-2">
                <i class="ti ti-star me-2"></i>{{ current_plan.name }} Plan
            </div>
            <p style="opacity: 0.9;">
                {% if scheduled_change %}
                <i class="ti ti-clock me-2"></i>
                Scheduled to {{ scheduled_change.new_plan.name }} on {{ scheduled_change.effective_date|date:"d M Y" }}
                {% else %}
                Active since {{ subscription_start_date|date:"d M Y" }}
                {% endif %}
            </p>
        </div>
        <div class="col-md-4 text-end">
            <a href="{% url 'tenants:billing_history' %}" class="btn btn-light me-2">
                <i class="ti ti-file-invoice me-2"></i>Billing History
            </a>
            <a href="{% url 'tenants:credit_topup' %}" class="btn btn-outline-light">
                <i class="ti ti-coins me-2"></i>Buy Credits
            </a>
        </div>
    </div>
</div>

<!-- Key Stats -->
<div class="row mb-4">
    <div class="col-md-3">
        <div class="stat-card">
            <div class="stat-icon" style="background: #dbeafe; color: #1e40af;">
                <i class="ti ti-calendar"></i>
            </div>
            <div class="stat-value">{{ days_until_renewal|default:"N/A" }}</div>
            <div class="text-muted">Days Until Renewal</div>
        </div>
    </div>
    <div class="col-md-3">
        <div class="stat-card">
            <div class="stat-icon" style="background: #d1fae5; color: #065f46;">
                <i class="ti ti-currency-dollar"></i>
            </div>
            <div class="stat-value">RM {{ next_billing_amount|default:0|floatformat:2 }}</div>
            <div class="text-muted">Next Billing Amount</div>
        </div>
    </div>
    <div class="col-md-3">
        <div class="stat-card">
            <div class="stat-icon" style="background: #fef3c7; color: #92400e;">
                <i class="ti ti-coins"></i>
            </div>
            <div class="stat-value">{{ credit_balance.balance|default:0|floatformat:0 }}</div>
            <div class="text-muted">AI Credits Available</div>
        </div>
    </div>
    <div class="col-md-3">
        <div class="stat-card">
            <div class="stat-icon" style="background: #e0e7ff; color: #4338ca;">
                <i class="ti ti-file-invoice"></i>
            </div>
            <div class="stat-value">{{ unpaid_invoices_count|default:0 }}</div>
            <div class="text-muted">Unpaid Invoices</div>
        </div>
    </div>
</div>

<div class="row">
    <!-- Main Content Column -->
    <div class="col-lg-8">
        <!-- AI Token Usage -->
        {% if current_plan.ai_accounting_enabled %}
        <div class="card mb-4">
            <div class="card-header">
                <h4 class="mb-0">
                    <i class="ti ti-chart-line me-2"></i>AI Token Usage This Month
                </h4>
            </div>
            <div class="card-body">
                {% if token_limit %}
                <div class="d-flex justify-content-between mb-2">
                    <span>{{ tokens_used_this_month|floatformat:0 }} / {{ token_limit|floatformat:0 }} tokens</span>
                    <strong>{{ token_percentage|floatformat:1 }}%</strong>
                </div>
                
                <div class="progress-bar-container">
                    <div class="progress-bar-fill {% if token_percentage >= 90 %}danger{% elif token_percentage >= 70 %}warning{% endif %}" 
                         style="width: {{ token_percentage|floatformat:1 }}%;">
                        {% if token_percentage > 10 %}{{ token_percentage|floatformat:1 }}%{% endif %}
                    </div>
                </div>
                
                {% if tokens_remaining > 0 %}
                <p class="text-success mt-2 mb-0">
                    <i class="ti ti-check-circle me-1"></i>
                    {{ tokens_remaining|floatformat:0 }} tokens remaining
                </p>
                {% else %}
                <p class="text-danger mt-2 mb-0">
                    <i class="ti ti-alert-circle me-1"></i>
                    Token limit reached! Consider buying more credits.
                </p>
                {% endif %}
                
                {% elif token_limit is None %}
                <div class="alert alert-info mb-0">
                    <i class="ti ti-infinity me-2"></i>
                    <strong>Unlimited Tokens</strong>
                    <div class="mt-2">Used this month: {{ tokens_used_this_month|floatformat:0 }} tokens</div>
                </div>
                {% endif %}
                
                <!-- Usage Stats -->
                <div class="usage-stats">
                    <div class="usage-stat">
                        <div class="h4 mb-0">{{ tokens_used_this_month|default:0|floatformat:0 }}</div>
                        <small class="text-muted">Tokens Used</small>
                    </div>
                    <div class="usage-stat">
                        <div class="h4 mb-0">RM {{ total_cost_this_month|default:0|floatformat:2 }}</div>
                        <small class="text-muted">Total Cost</small>
                    </div>
                    <div class="usage-stat">
                        <div class="h4 mb-0">{{ usage_by_module|length|default:0 }}</div>
                        <small class="text-muted">Modules Used</small>
                    </div>
                </div>
            </div>
        </div>
        {% endif %}
        
        <!-- Recent Invoices -->
        <div class="card mb-4">
            <div class="card-header d-flex justify-content-between align-items-center">
                <h4 class="mb-0">
                    <i class="ti ti-file-invoice me-2"></i>Recent Invoices
                </h4>
                <a href="{% url 'tenants:billing_history' %}" class="btn btn-sm btn-outline-primary">
                    View All
                </a>
            </div>
            <div class="card-body">
                {% if recent_invoices %}
                    {% for invoice in recent_invoices %}
                    <div class="invoice-mini-card" onclick="window.location.href='{% url 'tenants:invoice_detail' invoice.id %}'">
                        <div class="d-flex justify-content-between align-items-center">
                            <div>
                                <strong>{{ invoice.invoice_number }}</strong><br>
                                <small class="text-muted">{{ invoice.created_at|date:"d M Y" }}</small>
                            </div>
                            <div class="text-end">
                                <div class="fw-bold">RM {{ invoice.total_amount|floatformat:2 }}</div>
                                <span class="badge bg-{% if invoice.status == 'PAID' %}success{% elif invoice.status == 'PENDING' %}warning{% else %}danger{% endif %}">
                                    {{ invoice.get_status_display }}
                                </span>
                            </div>
                        </div>
                    </div>
                    {% endfor %}
                {% else %}
                <p class="text-muted mb-0">No invoices yet</p>
                {% endif %}
            </div>
        </div>
        
        <!-- Usage by Module -->
        {% if usage_by_module %}
        <div class="card">
            <div class="card-header">
                <h4 class="mb-0">
                    <i class="ti ti-layer-group me-2"></i>Usage by AI Module
                </h4>
            </div>
            <div class="card-body">
                {% for module in usage_by_module %}
                <div class="d-flex justify-content-between align-items-center mb-3 pb-3 border-bottom">
                    <div>
                        <div class="fw-bold">
                            {% if module.module_type == 'accounting' %}
                            <i class="ti ti-calculator me-2"></i>AI Accounting
                            {% elif module.module_type == 'advisor' %}
                            <i class="ti ti-lightbulb me-2"></i>AI Advisor
                            {% elif module.module_type == 'documents' %}
                            <i class="ti ti-file-invoice me-2"></i>AI Documents
                            {% endif %}
                        </div>
                        <small class="text-muted">{{ module.total_tokens|floatformat:0 }} tokens</small>
                    </div>
                    <div class="fw-bold">RM {{ module.total_cost|floatformat:2 }}</div>
                </div>
                {% endfor %}
            </div>
        </div>
        {% endif %}
    </div>
    
    <!-- Sidebar Column -->
    <div class="col-lg-4">
        <!-- Plan Features -->
        <div class="card mb-3">
            <div class="card-header">
                <h5 class="mb-0">
                    <i class="ti ti-sparkles me-2"></i>Plan Features
                </h5>
            </div>
            <div class="card-body">
                <div class="mb-3">
                    <strong>Plan:</strong> {{ current_plan.name }}<br>
                    <strong>Price:</strong> RM {{ current_plan.price_monthly|floatformat:2 }}/month
                </div>
                
                <div class="feature-grid">
                    <div class="feature-item">
                        <i class="ti ti-check feature-enabled me-2"></i>
                        <span>{{ current_plan.max_users }} Users</span>
                    </div>
                    <div class="feature-item">
                        <i class="ti ti-{% if current_plan.ai_accounting_enabled %}check feature-enabled{% else %}x feature-disabled{% endif %} me-2"></i>
                        <span>AI Accounting</span>
                    </div>
                    <div class="feature-item">
                        <i class="ti ti-{% if current_plan.pos_enabled %}check feature-enabled{% else %}x feature-disabled{% endif %} me-2"></i>
                        <span>POS System</span>
                    </div>
                    <div class="feature-item">
                        <i class="ti ti-{% if current_plan.lhdn_tax_module_enabled %}check feature-enabled{% else %}x feature-disabled{% endif %} me-2"></i>
                        <span>LHDN Tax</span>
                    </div>
                </div>
                
                <div class="alert alert-info mt-3 mb-0">
                    <small>
                        <strong>Renewal:</strong> {{ next_renewal_date|date:"d M Y" }}
                    </small>
                </div>
            </div>
        </div>
        
        <!-- Quick Actions -->
        <div class="card mb-3">
            <div class="card-header">
                <h5 class="mb-0">
                    <i class="ti ti-bolt me-2"></i>Quick Actions
                </h5>
            </div>
            <div class="card-body">
                <a href="{% url 'tenants:pricing' %}" class="btn btn-primary w-100 mb-2">
                    <i class="ti ti-arrow-up me-2"></i>Upgrade Plan
                </a>
                <a href="{% url 'tenants:credit_topup' %}" class="btn btn-success w-100 mb-2">
                    <i class="ti ti-coins me-2"></i>Buy AI Credits
                </a>
                <a href="{% url 'tenants:billing_history' %}" class="btn btn-outline-primary w-100">
                    <i class="ti ti-file-invoice me-2"></i>View Invoices
                </a>
            </div>
        </div>
        
        <!-- Support -->
        <div class="card">
            <div class="card-body text-center">
                <i class="ti ti-help-circle" style="font-size: 2.5rem; color: #667eea;"></i>
                <h5 class="mt-3 mb-2">Need Help?</h5>
                <p class="text-muted mb-3">Contact support for billing assistance</p>
                <a href="mailto:support@3ncount.com" class="btn btn-outline-primary btn-sm">
                    <i class="ti ti-mail me-2"></i>Contact Support
                </a>
            </div>
        </div>
    </div>
</div>

{% endblock %}