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

{% block title %}Change Password - First Login{% endblock %}

{% block content %}
<style>
    .password-change-container {
        min-height: 100vh;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 2rem;
    }

    .password-card {
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        border-radius: 20px;
        box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
        padding: 3rem;
        width: 100%;
        max-width: 500px;
        animation: slideUp 0.8s ease-out;
    }

    @keyframes slideUp {
        from {
            opacity: 0;
            transform: translateY(50px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .icon-section {
        text-align: center;
        margin-bottom: 2rem;
    }

    .icon-circle {
        width: 80px;
        height: 80px;
        background: linear-gradient(135deg, #f39c12, #e67e22);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 1rem;
        animation: pulse 2s ease-in-out infinite;
    }

    @keyframes pulse {
        0%, 100% { transform: scale(1); }
        50% { transform: scale(1.05); }
    }

    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-control {
        border: 2px solid #e9ecef;
        border-radius: 12px;
        padding: 1rem 1.2rem;
        font-size: 1rem;
        transition: all 0.3s ease;
        width: 100%;
    }

    .form-control:focus {
        border-color: #667eea;
        box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
        outline: none;
    }

    .btn-update {
        background: linear-gradient(135deg, #667eea, #764ba2);
        border: none;
        border-radius: 12px;
        padding: 1rem 2rem;
        font-size: 1.1rem;
        font-weight: 600;
        color: white;
        width: 100%;
        transition: all 0.3s ease;
        cursor: pointer;
    }

    .btn-update:hover {
        transform: translateY(-2px);
        box-shadow: 0 15px 30px rgba(102, 126, 234, 0.4);
    }

    .password-requirements {
        background: #f8f9fa;
        border-radius: 10px;
        padding: 1rem;
        margin-bottom: 1.5rem;
        border-left: 4px solid #667eea;
    }

    .requirement {
        font-size: 0.9rem;
        color: #6c757d;
        margin-bottom: 0.25rem;
    }

    .requirement.valid {
        color: #28a745;
    }

    .error-message {
        background: linear-gradient(135deg, #ff6b6b, #ee5a24);
        color: white;
        padding: 1rem;
        border-radius: 12px;
        margin-bottom: 1.5rem;
    }
</style>

<div class="password-change-container">
    <div class="password-card">
        <div class="icon-section">
            <div class="icon-circle">
                <i class="bi bi-shield-lock-fill text-white" style="font-size: 2rem;"></i>
            </div>
            <h3>First Time Login</h3>
            <p class="text-muted">Please change your password to continue</p>
        </div>

        {% if messages %}
            {% for message in messages %}
                <div class="error-message">
                    <i class="bi bi-exclamation-triangle-fill me-2"></i>
                    {{ message }}
                </div>
            {% endfor %}
        {% endif %}

        <div class="password-requirements">
            <h6><i class="bi bi-info-circle me-2"></i>Password Requirements:</h6>
            <div class="requirement" id="req-length">• At least 8 characters long</div>
            <div class="requirement" id="req-match">• Passwords must match</div>
        </div>

        <form method="post" id="passwordForm">
            {% csrf_token %}
            <div class="form-group">
                <label for="new_password" class="form-label">New Password</label>
                <input type="password" class="form-control" id="new_password" name="new_password" 
                       placeholder="Enter new password" required minlength="8">
            </div>

            <div class="form-group">
                <label for="confirm_password" class="form-label">Confirm Password</label>
                <input type="password" class="form-control" id="confirm_password" name="confirm_password" 
                       placeholder="Confirm new password" required minlength="8">
            </div>

            <button type="submit" class="btn btn-update" id="updateBtn">
                <i class="bi bi-check-circle me-2"></i>Update Password
            </button>
        </form>
    </div>
</div>

<script>
document.addEventListener('DOMContentLoaded', function() {
    const newPasswordInput = document.getElementById('new_password');
    const confirmPasswordInput = document.getElementById('confirm_password');
    const updateBtn = document.getElementById('updateBtn');
    const reqLength = document.getElementById('req-length');
    const reqMatch = document.getElementById('req-match');

    function validatePassword() {
        const newPassword = newPasswordInput.value;
        const confirmPassword = confirmPasswordInput.value;
        let isValid = true;

        // Check length requirement
        if (newPassword.length >= 8) {
            reqLength.classList.add('valid');
        } else {
            reqLength.classList.remove('valid');
            isValid = false;
        }

        // Check match requirement
        if (confirmPassword && newPassword === confirmPassword) {
            reqMatch.classList.add('valid');
            confirmPasswordInput.setCustomValidity('');
        } else if (confirmPassword) {
            reqMatch.classList.remove('valid');
            confirmPasswordInput.setCustomValidity('Passwords do not match');
            isValid = false;
        } else {
            reqMatch.classList.remove('valid');
        }

        updateBtn.disabled = !isValid;
        return isValid;
    }

    newPasswordInput.addEventListener('input', validatePassword);
    confirmPasswordInput.addEventListener('input', validatePassword);

    document.getElementById('passwordForm').addEventListener('submit', function(e) {
        if (!validatePassword()) {
            e.preventDefault();
            return false;
        }
        
        updateBtn.innerHTML = '<i class="spinner-border spinner-border-sm me-2"></i>Updating...';
        updateBtn.disabled = true;
    });
});
</script>
{% endblock %}