// Representatives Display Module
class RepresentativesDisplay {
    constructor() {
        this.container = document.getElementById('representatives-container');
    }

    displayRepresentatives(representatives) {
        if (!representatives || representatives.length === 0) {
            this.container.innerHTML = `
                <div class="rep-category">
                    <h3>No Representatives Found</h3>
                    <p>No representatives were found for this postal code. This might be due to:</p>
                    <ul>
                        <li>The postal code is not in our database</li>
                        <li>Temporary API issues</li>
                        <li>The postal code is not currently assigned to electoral districts</li>
                    </ul>
                    <p>Please try again later or verify your postal code.</p>
                </div>
            `;
            return;
        }

        // Group representatives by level/type
        const grouped = this.groupRepresentatives(representatives);
        
        let html = '';
        
        // Order of importance for display
        const displayOrder = [
            'Federal',
            'Provincial',
            'Municipal',
            'School Board',
            'Other'
        ];

        displayOrder.forEach(level => {
            if (grouped[level] && grouped[level].length > 0) {
                html += this.renderRepresentativeCategory(level, grouped[level]);
            }
        });

        this.container.innerHTML = html;
        this.attachEventListeners();
    }

    groupRepresentatives(representatives) {
        const groups = {
            'Federal': [],
            'Provincial': [],
            'Municipal': [],
            'School Board': [],
            'Other': []
        };

        representatives.forEach(rep => {
            const setName = rep.representative_set_name || '';
            const office = rep.elected_office || '';
            
            if (setName.toLowerCase().includes('house of commons') || 
                setName.toLowerCase().includes('federal') ||
                office.toLowerCase().includes('member of parliament') ||
                office.toLowerCase().includes('mp')) {
                groups['Federal'].push(rep);
            } else if (setName.toLowerCase().includes('provincial') || 
                       setName.toLowerCase().includes('legislative assembly') ||
                       setName.toLowerCase().includes('mla') ||
                       office.toLowerCase().includes('mla')) {
                groups['Provincial'].push(rep);
            } else if (setName.toLowerCase().includes('municipal') || 
                       setName.toLowerCase().includes('city council') ||
                       setName.toLowerCase().includes('mayor') ||
                       office.toLowerCase().includes('councillor') ||
                       office.toLowerCase().includes('mayor')) {
                groups['Municipal'].push(rep);
            } else if (setName.toLowerCase().includes('school') ||
                       office.toLowerCase().includes('school') ||
                       office.toLowerCase().includes('trustee')) {
                groups['School Board'].push(rep);
            } else {
                groups['Other'].push(rep);
            }
        });

        return groups;
    }

    renderRepresentativeCategory(categoryName, representatives) {
        const cards = representatives.map(rep => this.renderRepresentativeCard(rep)).join('');
        
        return `
            <div class="rep-category">
                <h3>${categoryName} Representatives</h3>
                <div class="rep-cards">
                    ${cards}
                </div>
            </div>
        `;
    }

    renderRepresentativeCard(rep) {
        const name = rep.name || 'Name not available';
        const email = rep.email || null;
        const office = rep.elected_office || 'Office not specified';
        const district = rep.district_name || 'District not specified';
        const party = rep.party_name || 'Party not specified';
        const photoUrl = rep.photo_url || null;

        const emailButton = email ? 
            `<button class="btn btn-primary compose-email" 
                     data-email="${email}" 
                     data-name="${name}" 
                     data-office="${office}" 
                     data-district="${district}">
                Send Email
            </button>` : 
            '<span class="text-muted">No email available</span>';

        const profileUrl = rep.url ? 
            `<a href="${rep.url}" target="_blank" class="btn btn-secondary">View Profile</a>` : '';

        // Generate initials for fallback
        const initials = name.split(' ')
            .map(word => word.charAt(0))
            .join('')
            .toUpperCase()
            .slice(0, 2);

        const photoElement = photoUrl ? 
            `<div class="rep-photo">
                <img src="${photoUrl}" 
                     alt="${name}" 
                     onerror="this.style.display='none'; this.nextElementSibling.style.display='flex';"
                     loading="lazy">
                <div class="rep-photo-fallback" style="display: none;">
                    ${initials}
                </div>
            </div>` : 
            `<div class="rep-photo">
                <div class="rep-photo-fallback">
                    ${initials}
                </div>
            </div>`;

        return `
            <div class="rep-card">
                ${photoElement}
                <div class="rep-content">
                    <div class="rep-header">
                        <h4>${name}</h4>
                    </div>
                    <div class="rep-info">
                        <p><strong>Office:</strong> ${office}</p>
                        <p><strong>District:</strong> ${district}</p>
                        ${party !== 'Party not specified' ? `<p><strong>Party:</strong> ${party}</p>` : ''}
                        ${email ? `<p><strong>Email:</strong> ${email}</p>` : ''}
                    </div>
                    <div class="rep-actions">
                        ${emailButton}
                        ${profileUrl}
                    </div>
                </div>
            </div>
        `;
    }

    attachEventListeners() {
        // Add event listeners for compose email buttons
        const composeButtons = this.container.querySelectorAll('.compose-email');
        composeButtons.forEach(button => {
            button.addEventListener('click', (e) => {
                const email = e.target.dataset.email;
                const name = e.target.dataset.name;
                const office = e.target.dataset.office;
                const district = e.target.dataset.district;
                
                window.emailComposer.openModal({
                    email,
                    name,
                    office,
                    district
                });
            });
        });
    }
}

// Initialize when DOM is loaded
document.addEventListener('DOMContentLoaded', () => {
    window.representativesDisplay = new RepresentativesDisplay();
});