/**
 * proxy-input.js — 대리입력 리뉴얼
 * Step 1: 날짜 선택 → 작업자 목록 (체크박스)
 * Step 2: 선택 작업자 일괄 편집 → 저장 (TBM 자동 생성)
 */

let currentDate = '';
let allWorkers = [];
let selectedIds = new Set();
let projects = [];
let workTypes = [];
let editData = {}; // { userId: { project_id, work_type_id, work_hours, defect_hours, note } }

// ===== Init =====
document.addEventListener('DOMContentLoaded', () => {
    const now = new Date();
    currentDate = now.toISOString().substring(0, 10);
    document.getElementById('dateInput').value = currentDate;

    setTimeout(async () => {
        await loadDropdownData();
        await loadWorkers();
    }, 500);
});

async function loadDropdownData() {
    try {
        const [pRes, wRes] = await Promise.all([
            window.apiCall('/projects'),
            window.apiCall('/daily-work-reports/work-types')
        ]);
        projects = (pRes.data || pRes || []).filter(p => p.is_active !== 0);
        workTypes = (wRes.data || wRes || []).filter(w => w.is_active !== 0);
    } catch (e) { console.warn('드롭다운 로드 실패:', e); }
}

// ===== Step 1: Worker List =====
async function loadWorkers() {
    currentDate = document.getElementById('dateInput').value;
    if (!currentDate) return;

    const list = document.getElementById('workerList');
    list.innerHTML = '<div class="pi-skeleton"></div><div class="pi-skeleton"></div>';
    selectedIds.clear();
    updateEditButton();

    try {
        const res = await window.apiCall('/proxy-input/daily-status?date=' + currentDate);
        if (!res.success) throw new Error(res.message);

        allWorkers = res.data.workers || [];
        const s = res.data.summary || {};
        document.getElementById('totalNum').textContent = s.total_active_workers || 0;
        document.getElementById('doneNum').textContent = s.report_completed || 0;
        document.getElementById('missingNum').textContent = s.report_missing || 0;
        document.getElementById('vacNum').textContent = allWorkers.filter(w => w.vacation_type_code === 'ANNUAL_FULL').length;

        renderWorkerList();
    } catch (e) {
        list.innerHTML = '<div class="pi-empty"><i class="fas fa-exclamation-triangle text-2xl text-red-300"></i><p>데이터 로드 실패</p></div>';
    }
}

function renderWorkerList() {
    const list = document.getElementById('workerList');
    if (!allWorkers.length) {
        list.innerHTML = '<div class="pi-empty"><p>작업자가 없습니다</p></div>';
        return;
    }

    list.innerHTML = allWorkers.map(w => {
        const isFullVac = w.vacation_type_code === 'ANNUAL_FULL';
        const hasVac = !!w.vacation_type_code;
        const vacBadge = isFullVac ? '<span class="pi-badge vac">연차</span>'
            : hasVac ? `<span class="pi-badge vac-half">${esc(w.vacation_type_name)}</span>` : '';
        const doneBadge = w.has_report ? `<span class="pi-badge done">${w.total_report_hours}h</span>` : '<span class="pi-badge missing">미입력</span>';

        return `
        <label class="pi-worker ${isFullVac ? 'disabled' : ''}" data-uid="${w.user_id}">
            <input type="checkbox" class="pi-check" value="${w.user_id}"
                ${isFullVac ? 'disabled' : ''}
                onchange="onWorkerCheck(${w.user_id}, this.checked)">
            <div class="pi-worker-info">
                <span class="pi-worker-name">${esc(w.worker_name)}</span>
                <span class="pi-worker-job">${esc(w.job_type || '')}</span>
            </div>
            <div class="pi-worker-badges">
                ${vacBadge}${doneBadge}
            </div>
        </label>`;
    }).join('');
}

function onWorkerCheck(userId, checked) {
    if (checked) selectedIds.add(userId);
    else selectedIds.delete(userId);
    updateEditButton();
}

function toggleSelectAll(checked) {
    allWorkers.forEach(w => {
        if (w.vacation_type_code === 'ANNUAL_FULL') return;
        const cb = document.querySelector(`.pi-check[value="${w.user_id}"]`);
        if (cb) { cb.checked = checked; onWorkerCheck(w.user_id, checked); }
    });
}

function updateEditButton() {
    const btn = document.getElementById('editBtn');
    const n = selectedIds.size;
    btn.disabled = n === 0;
    document.getElementById('editBtnText').textContent = n > 0 ? `선택 작업자 편집 (${n}명)` : '작업자를 선택하세요';
}

// ===== Step 2: Edit Mode =====
function openEditMode() {
    if (selectedIds.size === 0) return;

    const selected = allWorkers.filter(w => selectedIds.has(w.user_id));
    editData = {};

    // 기본값 설정
    selected.forEach(w => {
        const isHalfVac = w.vacation_type_code === 'ANNUAL_HALF';
        const isQuarterVac = w.vacation_type_code === 'ANNUAL_QUARTER';
        editData[w.user_id] = {
            project_id: '',
            work_type_id: '',
            work_hours: isHalfVac ? 4 : isQuarterVac ? 6 : 8,
            defect_hours: 0,
            note: '',
            start_time: '08:00',
            end_time: isHalfVac ? '12:00' : isQuarterVac ? '14:00' : '17:00',
            work_status_id: 1
        };
    });

    document.getElementById('editTitle').textContent = `일괄 편집 (${selected.length}명)`;

    const projOpts = projects.map(p => `<option value="${p.project_id}">${esc(p.project_name)}</option>`).join('');
    const typeOpts = workTypes.map(t => `<option value="${t.work_type_id}">${esc(t.work_type_name)}</option>`).join('');

    document.getElementById('editList').innerHTML = selected.map(w => {
        const d = editData[w.user_id];
        const vacLabel = w.vacation_type_name ? ` <span class="pi-badge vac-half">${esc(w.vacation_type_name)}</span>` : '';
        return `
        <div class="pi-edit-card" data-uid="${w.user_id}">
            <div class="pi-edit-header">
                <strong>${esc(w.worker_name)}</strong>
                <span class="pi-edit-job">${esc(w.job_type || '')}</span>
                ${vacLabel}
            </div>
            <div class="pi-edit-fields">
                <div class="pi-edit-row">
                    <select id="proj_${w.user_id}" class="pi-select" required>
                        <option value="">프로젝트 *</option>${projOpts}
                    </select>
                    <select id="wtype_${w.user_id}" class="pi-select" required>
                        <option value="">공종 *</option>${typeOpts}
                    </select>
                </div>
                <div class="pi-edit-row">
                    <label class="pi-field"><span>시간</span><input type="number" id="hours_${w.user_id}" value="${d.work_hours}" step="0.5" min="0" max="24" class="pi-input"></label>
                    <label class="pi-field"><span>부적합</span><input type="number" id="defect_${w.user_id}" value="0" step="0.5" min="0" max="24" class="pi-input"></label>
                </div>
                <input type="text" id="note_${w.user_id}" placeholder="비고" class="pi-note-input" value="">
            </div>
        </div>`;
    }).join('');

    document.getElementById('step1').classList.add('hidden');
    document.getElementById('step2').classList.remove('hidden');
}

function closeEditMode() {
    document.getElementById('step2').classList.add('hidden');
    document.getElementById('step1').classList.remove('hidden');
}

// ===== Save =====
async function saveAll() {
    const btn = document.getElementById('saveBtn');
    btn.disabled = true;
    document.getElementById('saveBtnText').textContent = '저장 중...';

    const entries = [];
    let hasError = false;

    for (const uid of selectedIds) {
        const projEl = document.getElementById('proj_' + uid);
        const wtypeEl = document.getElementById('wtype_' + uid);
        const hoursEl = document.getElementById('hours_' + uid);
        const defectEl = document.getElementById('defect_' + uid);
        const noteEl = document.getElementById('note_' + uid);

        if (!projEl?.value || !wtypeEl?.value) {
            showToast(`프로젝트/공종을 선택하세요`, 'error');
            projEl?.focus();
            hasError = true;
            break;
        }

        const workHours = parseFloat(hoursEl?.value) || 0;
        const defectHours = parseFloat(defectEl?.value) || 0;

        if (defectHours > workHours) {
            showToast('부적합 시간이 근무시간을 초과합니다', 'error');
            hasError = true;
            break;
        }

        entries.push({
            user_id: uid,
            project_id: parseInt(projEl.value),
            work_type_id: parseInt(wtypeEl.value),
            work_hours: workHours,
            defect_hours: defectHours,
            note: noteEl?.value || '',
            start_time: '08:00',
            end_time: '17:00',
            work_status_id: defectHours > 0 ? 2 : 1
        });
    }

    if (hasError) {
        btn.disabled = false;
        document.getElementById('saveBtnText').textContent = '전체 저장';
        return;
    }

    try {
        const res = await window.apiCall('/proxy-input', 'POST', {
            session_date: currentDate,
            entries
        });

        if (res.success) {
            showToast(res.message || `${entries.length}명 저장 완료`, 'success');
            closeEditMode();
            selectedIds.clear();
            updateEditButton();
            await loadWorkers();
        } else {
            showToast(res.message || '저장 실패', 'error');
        }
    } catch (e) {
        showToast('저장 실패: ' + (e.message || e), 'error');
    }

    btn.disabled = false;
    document.getElementById('saveBtnText').textContent = '전체 저장';
}

function esc(s) { return (s || '').replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;'); }