// Main JavaScript for Ryans Recruit Firm

// Load jobs on jobs.html page
if (window.location.pathname.includes('jobs')) {
    loadJobs();
}

async function loadJobs() {
    const jobsContainer = document.getElementById('jobs-container');
    const loadingEl = document.getElementById('loading');

    try {
        const response = await fetch('/api/jobs');
        const jobs = await response.json();

        if (loadingEl) loadingEl.style.display = 'none';

        if (jobs.length === 0) {
            jobsContainer.innerHTML = '<div class="text-center"><p>No job openings at the moment. Check back soon!</p></div>';
            return;
        }

        jobsContainer.innerHTML = jobs.map(job => `
            <div class="job-card">
                <div class="job-header">
                    <div>
                        <h3 class="job-title">${escapeHtml(job.title)}</h3>
                        <div class="job-meta">
                            <span class="job-meta-item">📍 ${escapeHtml(job.location || 'Not specified')}</span>
                            <span class="job-meta-item">💼 ${escapeHtml(job.employment_type || 'Full-time')}</span>
                            ${job.salary_range ? `<span class="job-meta-item">💰 ${escapeHtml(job.salary_range)}</span>` : ''}
                            ${job.department ? `<span class="tag tag-primary">${escapeHtml(job.department)}</span>` : ''}
                        </div>
                    </div>
                </div>
                <p class="job-description">${escapeHtml(job.description.substring(0, 200))}...</p>
                <a href="/apply?job=${job.id}" class="btn btn-primary">Apply Now</a>
            </div>
        `).join('');
    } catch (err) {
        console.error('Error loading jobs:', err);
        if (loadingEl) loadingEl.style.display = 'none';
        jobsContainer.innerHTML = '<div class="alert alert-error">Failed to load job listings. Please try again later.</div>';
    }
}

// Handle application form on apply.html
if (window.location.pathname.includes('apply')) {
    loadJobDetails();
    document.getElementById('application-form')?.addEventListener('submit', handleApplicationSubmit);
}

async function loadJobDetails() {
    const urlParams = new URLSearchParams(window.location.search);
    const jobId = urlParams.get('job');

    if (!jobId) return;

    try {
        const response = await fetch(`/api/jobs/${jobId}`);
        const job = await response.json();

        document.getElementById('job-title').textContent = job.title;
        document.getElementById('job-details').innerHTML = `
            <p><strong>Location:</strong> ${escapeHtml(job.location)}</p>
            <p><strong>Type:</strong> ${escapeHtml(job.employment_type)}</p>
            ${job.salary_range ? `<p><strong>Salary:</strong> ${escapeHtml(job.salary_range)}</p>` : ''}
            <p><strong>Description:</strong></p>
            <p>${escapeHtml(job.description)}</p>
        `;
    } catch (err) {
        console.error('Error loading job details:', err);
    }
}

async function handleApplicationSubmit(e) {
    e.preventDefault();

    const form = e.target;
    const submitBtn = form.querySelector('button[type="submit"]');
    const originalBtnText = submitBtn.textContent;

    submitBtn.disabled = true;
    submitBtn.innerHTML = '<span class="loading"></span> Submitting...';

    const formData = new FormData(form);

    try {
        const response = await fetch('/api/apply', {
            method: 'POST',
            body: formData
        });

        const result = await response.json();

        if (response.ok) {
            showAlert('Application submitted successfully! We\'ll be in touch soon.', 'success');
            form.reset();
            setTimeout(() => window.location.href = '/jobs', 2000);
        } else {
            showAlert(result.error || 'Failed to submit application', 'error');
        }
    } catch (err) {
        console.error('Error submitting application:', err);
        showAlert('Failed to submit application. Please try again.', 'error');
    } finally {
        submitBtn.disabled = false;
        submitBtn.textContent = originalBtnText;
    }
}

// Handle contact form on contact.html
if (window.location.pathname.includes('contact')) {
    document.getElementById('contact-form')?.addEventListener('submit', handleContactSubmit);
}

async function handleContactSubmit(e) {
    e.preventDefault();

    const form = e.target;
    const submitBtn = form.querySelector('button[type="submit"]');
    const originalBtnText = submitBtn.textContent;

    submitBtn.disabled = true;
    submitBtn.innerHTML = '<span class="loading"></span> Sending...';

    const formData = new FormData(form);
    const data = Object.fromEntries(formData);

    try {
        const response = await fetch('/api/contact', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify(data)
        });

        const result = await response.json();

        if (response.ok) {
            showAlert('Message sent successfully! We\'ll get back to you soon.', 'success');
            form.reset();
        } else {
            showAlert(result.error || 'Failed to send message', 'error');
        }
    } catch (err) {
        console.error('Error sending message:', err);
        showAlert('Failed to send message. Please try again.', 'error');
    } finally {
        submitBtn.disabled = false;
        submitBtn.textContent = originalBtnText;
    }
}

// Utility functions
function escapeHtml(text) {
    const div = document.createElement('div');
    div.textContent = text;
    return div.innerHTML;
}

function showAlert(message, type = 'info') {
    const alertDiv = document.createElement('div');
    alertDiv.className = `alert alert-${type}`;
    alertDiv.textContent = message;
    alertDiv.style.position = 'fixed';
    alertDiv.style.top = '20px';
    alertDiv.style.right = '20px';
    alertDiv.style.zIndex = '10000';
    alertDiv.style.minWidth = '300px';

    document.body.appendChild(alertDiv);

    setTimeout(() => {
        alertDiv.remove();
    }, 5000);
}

// File input validation
document.addEventListener('DOMContentLoaded', () => {
    const fileInputs = document.querySelectorAll('input[type="file"]');
    fileInputs.forEach(input => {
        input.addEventListener('change', (e) => {
            const file = e.target.files[0];
            if (file) {
                const maxSize = 5 * 1024 * 1024; // 5MB
                if (file.size > maxSize) {
                    showAlert('File size must be less than 5MB', 'error');
                    e.target.value = '';
                    return;
                }

                const allowedTypes = ['application/pdf', 'application/msword', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'];
                if (!allowedTypes.includes(file.type)) {
                    showAlert('Only PDF, DOC, and DOCX files are allowed', 'error');
                    e.target.value = '';
                    return;
                }
            }
        });
    });
});