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

{% block title %}Job Posting Generator Agent - NetCop AI Hub{% endblock %}

{% block extra_css %}
<!-- Optimized Font Loading with Performance Hints -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap" rel="stylesheet">

<!-- External Stylesheets -->
<link rel="stylesheet" href="{% static 'css/themes.css' %}">
<link rel="stylesheet" href="{% static 'css/agent-base.css' %}">

<!-- Shared JavaScript Utilities -->
<script src="{% static 'js/agent-utils.js' %}"></script>
{% endblock %}

{% block content %}
<div class="agent-page theme-professional">
    <div class="agent-container">
        <!-- Messages -->
        {% if messages %}
            {% for message in messages %}
                <div class="{% if message.tags == 'error' %}error-message{% else %}success-message{% endif %}" style="grid-column: 1 / -1;">
                    {{ message }}
                </div>
            {% endfor %}
        {% endif %}
        
        <!-- Main Content -->
        <div>
            <!-- Job Posting Form -->
            <div class="card">
                <h3 class="section-title">📝 Job Posting Details</h3>
                
                <form method="POST" id="jobPostingForm">
                    {% csrf_token %}
                    
                    <!-- Basic Information Section -->
                    <div class="section-container basic-info">
                        <h4 class="section-subtitle">Basic Information</h4>
                        
                        <div class="form-group">
                            <label class="form-label" for="job_title">💼 Job Title *</label>
                            <input type="text" name="job_title" id="job_title" class="form-input" placeholder="e.g., Senior Software Engineer" required aria-describedby="job_title_help">
                            <div id="job_title_help" class="form-help">Enter the exact position title you're hiring for</div>
                        </div>
                        
                        <div class="form-group">
                            <label class="form-label" for="company_name">🏢 Company Name *</label>
                            <input type="text" name="company_name" id="company_name" class="form-input" placeholder="e.g., TechCorp Inc." required aria-describedby="company_name_help">
                            <div id="company_name_help" class="form-help">Your organization's official name</div>
                        </div>
                        
                        <div class="form-group">
                            <label class="form-label" for="job_description">📝 Job Description *</label>
                            <textarea name="job_description" id="job_description" class="form-textarea" placeholder="Describe the role, key requirements, company culture, etc." rows="4" required aria-describedby="job_description_help"></textarea>
                            <div id="job_description_help" class="form-help">Provide detailed information about the role and what you're looking for</div>
                        </div>
                    </div>
                    
                    <!-- Job Requirements Section -->
                    <div class="section-container requirements">
                        <h4 class="section-subtitle">Job Requirements</h4>
                        
                        <div class="form-group">
                            <label class="form-label" for="seniority_level">📊 Seniority Level *</label>
                            <select name="seniority_level" id="seniority_level" class="form-input" required aria-describedby="seniority_help">
                                <option value="">Select seniority level...</option>
                                <option value="entry">Entry Level</option>
                                <option value="mid">Mid Level</option>
                                <option value="senior">Senior Level</option>
                                <option value="lead">Lead/Principal</option>
                                <option value="executive">Executive/C-Level</option>
                            </select>
                            <div id="seniority_help" class="form-help">Choose the experience level required for this position</div>
                        </div>
                        
                        <div class="form-group">
                            <label class="form-label" for="contract_type">📋 Contract Type *</label>
                            <select name="contract_type" id="contract_type" class="form-input" required aria-describedby="contract_help">
                                <option value="">Select contract type...</option>
                                <option value="full-time">Full-time</option>
                                <option value="part-time">Part-time</option>
                                <option value="contract">Contract</option>
                                <option value="freelance">Freelance</option>
                                <option value="internship">Internship</option>
                            </select>
                            <div id="contract_help" class="form-help">Select the type of employment relationship</div>
                        </div>
                        
                        <div class="form-group">
                            <label class="form-label" for="location">📍 Location *</label>
                            <input type="text" name="location" id="location" class="form-input" placeholder="e.g., Dubai, UAE or Remote" required aria-describedby="location_help">
                            <div id="location_help" class="form-help">Specify where the role is based or if it's remote</div>
                        </div>
                    </div>
                    
                    <!-- Additional Details Section -->
                    <div class="section-container additional">
                        <h4 class="section-subtitle">Additional Details (Optional)</h4>
                        
                        <label class="form-label">🌐 Language</label>
                        <select name="language" id="language" class="form-input">
                            <option value="English">English</option>
                            <option value="Arabic">Arabic (العربية)</option>
                            <option value="Spanish">Spanish (Español)</option>
                            <option value="French">French (Français)</option>
                            <option value="German">German (Deutsch)</option>
                        </select>
                        
                        <label class="form-label">🌍 Company Website</label>
                        <input type="url" name="company_website" id="company_website" class="form-input" placeholder="https://www.company.com">
                        
                        <label class="form-label">📧 How to Apply</label>
                        <textarea name="how_to_apply" id="how_to_apply" class="form-textarea" placeholder="Instructions for candidates on how to apply for this position" rows="3"></textarea>
                    </div>
                </form>
            </div>
            
            <!-- Processing Status -->
            <div id="processingStatus" class="processing-status">
                <div class="status-icon">💼</div>
                <div class="status-text">Creating Job Posting...</div>
                <div class="status-detail" id="statusText">Crafting professional job description...</div>
            </div>
            
            <!-- Results -->
            <div id="jobResults" class="results-card">
                <div class="results-header">
                    <div style="font-size: 24px;">✅</div>
                    <h3 style="font-size: 20px; font-weight: 600; color: var(--primary-color); margin: 0;">Generated Job Posting</h3>
                    <div style="background: var(--primary-color); color: white; padding: 6px 12px; border-radius: 6px; font-size: 14px; font-weight: 600; margin-left: auto;">✅ Complete</div>
                </div>
                
                <div class="results-content" id="jobContent">
                    <!-- Job posting content will be displayed here -->
                </div>
                
                <div class="action-buttons">
                    <button onclick="copyJobPosting()" class="btn btn-primary">📋 Copy Job Posting</button>
                    <button onclick="downloadJobPosting()" class="btn btn-secondary">💾 Download Posting</button>
                    <button onclick="resetForm()" class="btn" style="background: var(--primary-color); color: white;">🔄 Create Another</button>
                </div>
            </div>
        </div>
        
        <!-- Wallet Sidebar -->
        <div class="wallet-section">
            <div class="card">
                <h3 class="section-title">💳 Your Wallet</h3>
                
                <div class="wallet-balance" data-wallet-balance>
                    {% if user.is_authenticated %}
                        {{ user.wallet_balance|floatformat:2 }} AED
                    {% else %}
                        0.00 AED
                    {% endif %}
                </div>
                <div class="balance-label">Available Balance</div>
                
                {% if user.is_authenticated %}
                    {% if user.wallet_balance >= 4.00 %}
                        <button type="submit" form="jobPostingForm" class="btn btn-primary process-btn" id="processButton">
                            💼 Generate Job Posting (4.00 AED)
                        </button>
                    {% else %}
                        <div class="insufficient-balance">
                            Insufficient balance! You need 4.00 AED.
                        </div>
                        <a href="{% url 'core:wallet' %}" class="btn btn-primary process-btn" style="text-decoration: none;">
                            💰 Top Up Wallet
                        </a>
                    {% endif %}
                {% else %}
                    <a href="{% url 'authentication:login' %}" class="btn btn-primary process-btn" style="text-decoration: none;">
                        🔑 Login to Continue
                    </a>
                {% endif %}
            </div>
            
            <div class="usage-info">
                <h4>💡 How it works</h4>
                <ul>
                    <li>Fill in job details and requirements</li>
                    <li>Add company info and benefits</li>
                    <li>Choose posting style and tone</li>
                    <li>Get professional job description</li>
                </ul>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
    // Form validation
    function isFormValid() {
        const jobTitle = document.getElementById('job_title').value.trim();
        const companyName = document.getElementById('company_name').value.trim();
        const description = document.getElementById('job_description').value.trim();
        const seniority = document.getElementById('seniority_level').value;
        const contractType = document.getElementById('contract_type').value;
        const location = document.getElementById('location').value.trim();
        
        return jobTitle && companyName && description && seniority && contractType && location;
    }
    
    // Copy job posting to clipboard
    function copyJobPosting() {
        const jobText = AgentUtils.generateTextForExport('jobContent');
        AgentUtils.copyToClipboard(jobText, 'Job posting copied to clipboard!');
    }
    
    // Download job posting as text file
    function downloadJobPosting() {
        const jobText = AgentUtils.generateTextForExport('jobContent');
        AgentUtils.downloadAsFile(jobText, `job-posting-${Date.now()}.txt`, 'Job posting downloaded!');
    }

    // Reset form for creating another job posting
    function resetForm() {
        // Clear any active polling
        if (currentPollInterval) {
            clearInterval(currentPollInterval);
            currentPollInterval = null;
        }
        resultsDisplayed = false;
        
        // Reset form and UI
        document.getElementById('jobPostingForm').reset();
        document.getElementById('jobResults').style.display = 'none';
        resetUIState();
        
        AgentUtils.showToast('Form reset! Ready for another job posting.', 'success');
    }
    

    // Enhanced form validation with visual feedback
    function validateField(field) {
        const isValid = field.value.trim() !== '';
        const container = field.closest('.form-group') || field.parentElement;
        
        if (isValid) {
            field.style.borderColor = 'var(--success-color)';
            field.style.boxShadow = '0 0 0 2px rgba(16, 185, 129, 0.1)';
            container.classList.remove('error');
        } else {
            field.style.borderColor = 'var(--error-color)';
            field.style.boxShadow = '0 0 0 2px rgba(239, 68, 68, 0.1)';
            container.classList.add('error');
        }
        
        return isValid;
    }

    // Progressive form enhancement
    function initializeFormEnhancements() {
        const requiredFields = document.querySelectorAll('[required]');
        
        requiredFields.forEach(field => {
            // Real-time validation
            field.addEventListener('blur', () => validateField(field));
            
            // Reset validation on focus
            field.addEventListener('focus', () => {
                field.style.borderColor = 'var(--primary-color)';
                field.style.boxShadow = '0 0 0 2px rgba(0, 0, 0, 0.1)';
                field.closest('.form-group')?.classList.remove('error');
            });
            
            // Auto-resize textareas
            if (field.tagName === 'TEXTAREA') {
                field.addEventListener('input', function() {
                    this.style.height = 'auto';
                    this.style.height = Math.max(120, this.scrollHeight) + 'px';
                });
            }
        });
    }

    // Initialize on page load
    document.addEventListener('DOMContentLoaded', initializeFormEnhancements);

    // Update wallet balance display
    function updateWalletBalance(newBalance) {
        const balanceElements = document.querySelectorAll('[data-wallet-balance]');
        balanceElements.forEach(element => {
            element.textContent = `${newBalance.toFixed(2)} AED`;
        });
        window.currentWalletBalance = newBalance;
    }


    // Display job posting results with markdown formatting
    function displayResults(result) {
        AgentUtils.displayResults({
            result: result,
            resultsId: 'jobResults',
            contentId: 'jobContent',
            defaultMessage: 'Job posting generated successfully!',
            successMessage: '✅ Job posting created and payment processed!',
            errorMessage: '❌ Failed to generate job posting - no charge applied'
        });
    }

    // Track if results have been displayed to prevent duplicates
    let resultsDisplayed = false;
    let currentPollInterval = null;

    // Poll for results with improved error handling
    function pollForResults(requestId) {
        let pollCount = 0;
        const maxPolls = 30; // 30 seconds maximum
        resultsDisplayed = false; // Reset flag
        
        // Clear any existing polling
        if (currentPollInterval) {
            clearInterval(currentPollInterval);
            currentPollInterval = null;
        }
        
        currentPollInterval = setInterval(() => {
            pollCount++;
            
            fetch(`/agents/job-posting-generator/status/${requestId}/`)
                .then(response => {
                    if (!response.ok) {
                        throw new Error(`HTTP ${response.status}`);
                    }
                    return response.json();
                })
                .then(result => {
                    if (result.status === 'completed' || result.status === 'failed') {
                        // Stop polling immediately
                        clearInterval(currentPollInterval);
                        currentPollInterval = null;
                        
                        // Reset UI
                        resetUIState();
                        
                        // Display results only once
                        if (!resultsDisplayed) {
                            resultsDisplayed = true;
                            displayResults(result);
                        }
                    } else if (pollCount >= maxPolls) {
                        clearInterval(currentPollInterval);
                        currentPollInterval = null;
                        resetUIState();
                        AgentUtils.showToast('❌ Processing timeout - please try again', 'error');
                    }
                })
                .catch(error => {
                    console.error('Error polling results:', error);
                    clearInterval(currentPollInterval);
                    currentPollInterval = null;
                    resetUIState();
                    AgentUtils.showToast('❌ Network error during processing - please try again', 'error');
                });
        }, 1000);
    }
    
    // Helper function to reset UI state
    function resetUIState() {
        document.getElementById('processingStatus').style.display = 'none';
        const processButton = document.getElementById('processButton');
        processButton.disabled = false;
        processButton.classList.remove('loading');
        processButton.innerHTML = '💼 Generate Job Posting (4.00 AED)';
    }
    
    // Handle form submission
    document.getElementById('jobPostingForm').addEventListener('submit', function(e) {
        e.preventDefault();
        
        if (!isFormValid()) {
            AgentUtils.showToast('Please fill in all required fields', 'error');
            return;
        }
        
        // Prevent multiple submissions
        const processButton = document.getElementById('processButton');
        if (processButton.disabled) {
            return; // Already processing
        }
        
        // Check user authentication
        {% if not user.is_authenticated %}
        window.location.href = "{% url 'authentication:login' %}";
        return;
        {% endif %}
        
        // Check wallet balance
        const balance = {{ user.wallet_balance|default:0 }};
        if (balance < 4.00) {
            AgentUtils.showToast('Insufficient balance! You need 4.00 AED.', 'error');
            setTimeout(() => {
                window.location.href = "{% url 'core:wallet' %}";
            }, 2000);
            return;
        }

        // Clear any existing polling and reset flags
        if (currentPollInterval) {
            clearInterval(currentPollInterval);
            currentPollInterval = null;
        }
        resultsDisplayed = false;

        // Show processing status with enhanced loading
        document.getElementById('processingStatus').style.display = 'block';
        processButton.disabled = true;
        processButton.classList.add('loading');
        processButton.innerHTML = '⏳ Processing...';
        document.getElementById('jobResults').style.display = 'none';
        
        const steps = [
            'Analyzing job requirements and company details...',
            'Structuring professional job description...',
            'Optimizing content for recruitment platforms...',
            'Adding company branding and tone...',
            'Finalizing professional format and review...'
        ];
        
        let currentStep = 0;
        const stepInterval = setInterval(() => {
            if (currentStep < steps.length) {
                document.getElementById('statusText').textContent = steps[currentStep];
                currentStep++;
            } else {
                clearInterval(stepInterval);
            }
        }, 800);

        // Submit form via AJAX
        const formData = new FormData(this);
        
        fetch(window.location.href, {
            method: 'POST',
            body: formData,
            headers: {
                'X-Requested-With': 'XMLHttpRequest'
            }
        })
        .then(response => response.json())
        .then(result => {
            clearInterval(stepInterval);
            if (result.success && result.request_id) {
                // Start polling for results
                pollForResults(result.request_id);
            } else {
                // Handle immediate response
                resetUIState();
                
                if (result.error) {
                    AgentUtils.showToast(`❌ ${result.error}`, 'error');
                } else {
                    displayResults(result);
                }
            }
        })
        .catch(error => {
            clearInterval(stepInterval);
            console.error('Error:', error);
            resetUIState();
            AgentUtils.showToast('❌ Network error - please try again', 'error');
        });
    });
</script>
{% endblock %}