/* tkpurchase-accounts.js - Partner account management */

let allCompanies = [];
let selectedCompanyId = null;

async function loadCompaniesForAccounts() {
    try {
        const r = await api('/partners?limit=200');
        allCompanies = r.data || [];
        renderCompanyList(allCompanies);
    } catch(e) {
        console.warn('Load companies error:', e);
        document.getElementById('companyList').innerHTML = '<p class="text-red-400 text-center text-sm py-4">로딩 실패</p>';
    }
}

function renderCompanyList(list) {
    const container = document.getElementById('companyList');
    if (!list.length) {
        container.innerHTML = '<p class="text-gray-400 text-center text-sm py-4">등록된 업체가 없습니다</p>';
        return;
    }
    container.innerHTML = list.map(c => {
        const active = c.id === selectedCompanyId;
        return `<button onclick="selectCompanyForAccounts(${c.id})" class="w-full text-left px-3 py-2 rounded-lg text-sm transition-colors ${active ? 'bg-emerald-50 text-emerald-700 font-medium' : 'text-gray-700 hover:bg-gray-50'}">
            <i class="fas fa-building mr-2 ${active ? 'text-emerald-500' : 'text-gray-400'}"></i>${escapeHtml(c.company_name)}
        </button>`;
    }).join('');
}

function filterCompanyList() {
    const q = document.getElementById('companyFilter').value.trim().toLowerCase();
    const filtered = q ? allCompanies.filter(c => (c.company_name || '').toLowerCase().includes(q)) : allCompanies;
    renderCompanyList(filtered);
}

async function selectCompanyForAccounts(id) {
    selectedCompanyId = id;
    const company = allCompanies.find(c => c.id === id);
    document.getElementById('selectedCompanyName').textContent = company ? company.company_name + ' - 계정 목록' : '계정 목록';
    document.getElementById('addAccountBtn').classList.remove('hidden');

    // Re-render company list to highlight selection
    filterCompanyList();

    // Load accounts
    try {
        const r = await api('/partner-accounts/company/' + id);
        renderAccountList(r.data || []);
    } catch(e) {
        console.warn('Load accounts error:', e);
        document.getElementById('accountList').innerHTML = '<p class="text-red-400 text-center py-4 text-sm">계정 로딩 실패</p>';
    }
}

function renderAccountList(list) {
    const container = document.getElementById('accountList');
    if (!list.length) {
        container.innerHTML = '<p class="text-gray-400 text-center py-8 text-sm">등록된 계정이 없습니다</p>';
        return;
    }

    container.innerHTML = `<div class="space-y-3">${list.map(a => {
        const isExpired = a.account_expires_at && new Date(a.account_expires_at) < new Date();
        const statusBadge = !a.is_active
            ? '<span class="badge badge-gray">비활성</span>'
            : isExpired
                ? '<span class="badge badge-red">만료</span>'
                : '<span class="badge badge-green">활성</span>';

        return `<div class="border rounded-lg p-4 ${!a.is_active ? 'bg-gray-50 opacity-60' : ''}">
            <div class="flex items-center justify-between">
                <div class="flex items-center gap-3">
                    <div class="w-10 h-10 bg-emerald-100 rounded-full flex items-center justify-center text-emerald-700 font-semibold">
                        ${(a.name || a.username || '?').charAt(0).toUpperCase()}
                    </div>
                    <div>
                        <div class="text-sm font-medium text-gray-800">${escapeHtml(a.name || '')}</div>
                        <div class="text-xs text-gray-500">${escapeHtml(a.username || '')}</div>
                    </div>
                </div>
                <div class="flex items-center gap-2">
                    ${statusBadge}
                    <button onclick="openEditAccount(${a.id}, '${escapeHtml(a.name || '')}', '${a.account_expires_at ? formatDate(a.account_expires_at) : ''}')" class="text-blue-600 hover:text-blue-800 text-xs p-1" title="수정">
                        <i class="fas fa-edit"></i>
                    </button>
                    ${a.is_active ? `<button onclick="deactivateAccount(${a.id})" class="text-red-500 hover:text-red-700 text-xs p-1" title="비활성화">
                        <i class="fas fa-user-slash"></i>
                    </button>` : ''}
                </div>
            </div>
            <div class="mt-2 flex gap-4 text-xs text-gray-500">
                <span><i class="fas fa-calendar mr-1"></i>만료: ${a.account_expires_at ? formatDate(a.account_expires_at) : '무기한'}</span>
                ${a.last_login_at ? `<span><i class="fas fa-sign-in-alt mr-1"></i>최근 로그인: ${formatDateTime(a.last_login_at)}</span>` : ''}
            </div>
        </div>`;
    }).join('')}</div>`;
}

/* ===== Add Account ===== */
function openAddAccount() {
    if (!selectedCompanyId) { showToast('업체를 먼저 선택하세요', 'error'); return; }
    document.getElementById('addAccountForm').reset();
    // Default expiration: 1 year from now
    const oneYear = new Date();
    oneYear.setFullYear(oneYear.getFullYear() + 1);
    document.getElementById('addExpiresAt').value = toLocalDate(oneYear);
    document.getElementById('addAccountModal').classList.remove('hidden');
}

function closeAddAccount() {
    document.getElementById('addAccountModal').classList.add('hidden');
}

async function submitAddAccount(e) {
    e.preventDefault();
    const body = {
        username: document.getElementById('addUsername').value.trim(),
        password: document.getElementById('addPassword').value,
        name: document.getElementById('addName').value.trim(),
        account_expires_at: document.getElementById('addExpiresAt').value || null
    };
    if (!body.username || !body.password || !body.name) {
        showToast('필수 항목을 입력하세요', 'error');
        return;
    }

    try {
        body.partner_company_id = selectedCompanyId;
        await api('/partner-accounts', { method: 'POST', body: JSON.stringify(body) });
        showToast('계정이 추가되었습니다');
        closeAddAccount();
        selectCompanyForAccounts(selectedCompanyId);
    } catch(e) {
        showToast(e.message || '계정 추가 실패', 'error');
    }
}

/* ===== Edit Account ===== */
function openEditAccount(id, name, expiresAt) {
    document.getElementById('editAccountId').value = id;
    document.getElementById('editName').value = name;
    document.getElementById('editExpiresAt').value = expiresAt;
    document.getElementById('editAccountModal').classList.remove('hidden');
}

function closeEditAccount() {
    document.getElementById('editAccountModal').classList.add('hidden');
}

async function submitEditAccount(e) {
    e.preventDefault();
    const id = document.getElementById('editAccountId').value;
    const body = {
        name: document.getElementById('editName').value.trim(),
        account_expires_at: document.getElementById('editExpiresAt').value || null
    };

    try {
        await api('/partner-accounts/' + id, { method: 'PUT', body: JSON.stringify(body) });
        showToast('계정이 수정되었습니다');
        closeEditAccount();
        selectCompanyForAccounts(selectedCompanyId);
    } catch(e) {
        showToast(e.message || '수정 실패', 'error');
    }
}

/* ===== Deactivate Account ===== */
async function deactivateAccount(id) {
    if (!confirm('이 계정을 비활성화하시겠습니까?')) return;
    try {
        await api('/partner-accounts/' + id, { method: 'DELETE' });
        showToast('계정이 비활성화되었습니다');
        selectCompanyForAccounts(selectedCompanyId);
    } catch(e) {
        showToast(e.message || '비활성화 실패', 'error');
    }
}

/* ===== Init ===== */
function initAccountsPage() {
    if (!initAuth()) return;
    loadCompaniesForAccounts();
}