/**
 * daily-status.js — 일별 TBM/작업보고서 입력 현황 대시보드
 * Sprint 002 Section B
 */

// ===== Mock 설정 =====
const MOCK_ENABLED = false;

const MOCK_DATA = {
    success: true,
    data: {
        date: '2026-03-30',
        summary: {
            total_active_workers: 45, tbm_completed: 38, tbm_missing: 7,
            report_completed: 35, report_missing: 10, both_completed: 33, both_missing: 5
        },
        workers: [
            { user_id: 15, worker_name: '김철수', job_type: '용접', department_name: '생산1팀', has_tbm: false, has_report: false, tbm_session_id: null, total_report_hours: 0, status: 'both_missing', proxy_history: null },
            { user_id: 22, worker_name: '이영희', job_type: '배관', department_name: '생산2팀', has_tbm: true, has_report: false, tbm_session_id: 140, total_report_hours: 0, status: 'tbm_only', proxy_history: null },
            { user_id: 30, worker_name: '박민수', job_type: '전기', department_name: '생산1팀', has_tbm: true, has_report: true, tbm_session_id: 141, total_report_hours: 8, status: 'complete', proxy_history: { proxy_by: '관리자', proxy_at: '2026-03-30T14:30:00' } },
            { user_id: 35, worker_name: '정대호', job_type: '도장', department_name: '생산2팀', has_tbm: false, has_report: true, tbm_session_id: null, total_report_hours: 8, status: 'report_only', proxy_history: null },
            { user_id: 40, worker_name: '최윤서', job_type: '용접', department_name: '생산1팀', has_tbm: true, has_report: true, tbm_session_id: 142, total_report_hours: 9, status: 'complete', proxy_history: null },
            { user_id: 41, worker_name: '한지민', job_type: '사상', department_name: '생산2팀', has_tbm: false, has_report: false, tbm_session_id: null, total_report_hours: 0, status: 'both_missing', proxy_history: null },
            { user_id: 42, worker_name: '송민호', job_type: '절단', department_name: '생산1팀', has_tbm: true, has_report: true, tbm_session_id: 143, total_report_hours: 8, status: 'complete', proxy_history: null },
        ]
    }
};

const MOCK_DETAIL = {
    success: true,
    data: {
        worker: { user_id: 15, worker_name: '김철수', job_type: '용접', department_name: '생산1팀' },
        tbm_sessions: [],
        work_reports: [],
        proxy_history: []
    }
};

// ===== State =====
let currentDate = new Date();
let workers = [];
let currentFilter = 'all';
let selectedWorkerId = null;

const DAYS_KR = ['일요일', '월요일', '화요일', '수요일', '목요일', '금요일', '토요일'];
const ALLOWED_ROLES = ['support_team', 'admin', 'system'];

// ===== Init =====
document.addEventListener('DOMContentLoaded', async () => {
    // URL 파라미터에서 날짜 가져오기
    const urlDate = new URLSearchParams(location.search).get('date');
    if (urlDate) currentDate = new Date(urlDate + 'T00:00:00');

    // 권한 체크 (initAuth 완료 후)
    setTimeout(() => {
        const user = window.currentUser;
        if (user && !ALLOWED_ROLES.includes(user.role)) {
            document.getElementById('workerList').classList.add('hidden');
            document.getElementById('bottomAction').classList.add('hidden');
            document.getElementById('noPermission').classList.remove('hidden');
            return;
        }
        loadStatus();
    }, 500);
});

// ===== Date Navigation =====
function formatDateStr(d) {
    return d.getFullYear() + '-' + String(d.getMonth() + 1).padStart(2, '0') + '-' + String(d.getDate()).padStart(2, '0');
}

function updateDateDisplay() {
    const str = formatDateStr(currentDate);
    document.getElementById('dateText').textContent = str;
    document.getElementById('dayText').textContent = DAYS_KR[currentDate.getDay()];

    // 미래 날짜 비활성
    const today = new Date();
    today.setHours(0, 0, 0, 0);
    const nextBtn = document.getElementById('nextDate');
    nextBtn.disabled = currentDate >= today;
}

function changeDate(delta) {
    currentDate.setDate(currentDate.getDate() + delta);
    updateDateDisplay();
    loadStatus();
}

function openDatePicker() {
    const picker = document.getElementById('datePicker');
    picker.value = formatDateStr(currentDate);
    picker.max = formatDateStr(new Date());
    picker.showPicker ? picker.showPicker() : picker.click();
}

function onDatePicked(val) {
    if (!val) return;
    currentDate = new Date(val + 'T00:00:00');
    updateDateDisplay();
    loadStatus();
}

// ===== Data Loading =====
async function loadStatus() {
    const listEl = document.getElementById('workerList');
    listEl.innerHTML = '<div class="ds-skeleton"></div><div class="ds-skeleton"></div><div class="ds-skeleton"></div>';
    document.getElementById('emptyState').classList.add('hidden');
    updateDateDisplay();

    try {
        let res;
        if (MOCK_ENABLED) {
            res = MOCK_DATA;
        } else {
            res = await window.apiCall('/proxy-input/daily-status?date=' + formatDateStr(currentDate));
        }

        if (!res || !res.success) {
            listEl.innerHTML = '<div class="ds-empty"><p>데이터를 불러올 수 없습니다</p></div>';
            return;
        }

        workers = res.data.workers || [];
        updateSummary(res.data.summary || {});
        updateFilterCounts();
        renderWorkerList();
    } catch (e) {
        listEl.innerHTML = '<div class="ds-empty"><i class="fas fa-exclamation-triangle text-2xl text-red-300"></i><p>네트워크 오류. 다시 시도해주세요.</p></div>';
    }
}

function updateSummary(s) {
    document.getElementById('totalCount').textContent = s.total_active_workers || 0;
    document.getElementById('doneCount').textContent = s.both_completed || 0;
    document.getElementById('missingCount').textContent = s.both_missing || 0;

    const total = s.total_active_workers || 1;
    document.getElementById('donePct').textContent = Math.round((s.both_completed || 0) / total * 100) + '%';
    document.getElementById('missingPct').textContent = Math.round((s.both_missing || 0) / total * 100) + '%';

    // 하단 버튼 카운트
    const missingWorkers = workers.filter(w => w.status !== 'complete').length;
    document.getElementById('proxyCount').textContent = missingWorkers;
    document.getElementById('proxyBtn').disabled = missingWorkers === 0;
}

function updateFilterCounts() {
    document.getElementById('filterAll').textContent = workers.length;
    document.getElementById('filterComplete').textContent = workers.filter(w => w.status === 'complete').length;
    document.getElementById('filterMissing').textContent = workers.filter(w => w.status === 'both_missing').length;
    document.getElementById('filterPartial').textContent = workers.filter(w => w.status === 'tbm_only' || w.status === 'report_only').length;
}

// ===== Filter =====
function setFilter(f) {
    currentFilter = f;
    document.querySelectorAll('.ds-tab').forEach(tab => {
        tab.classList.toggle('active', tab.dataset.filter === f);
    });
    renderWorkerList();
}

// ===== Render =====
function renderWorkerList() {
    const listEl = document.getElementById('workerList');
    const emptyEl = document.getElementById('emptyState');

    let filtered = workers;
    if (currentFilter === 'complete') filtered = workers.filter(w => w.status === 'complete');
    else if (currentFilter === 'both_missing') filtered = workers.filter(w => w.status === 'both_missing');
    else if (currentFilter === 'partial') filtered = workers.filter(w => w.status === 'tbm_only' || w.status === 'report_only');

    if (filtered.length === 0) {
        listEl.innerHTML = '';
        emptyEl.classList.remove('hidden');
        return;
    }
    emptyEl.classList.add('hidden');

    listEl.innerHTML = filtered.map(w => {
        const tbmBadge = w.has_tbm
            ? '<span class="ds-badge-ok">TBM ✓</span>'
            : '<span class="ds-badge-no">TBM ✗</span>';
        const reportBadge = w.has_report
            ? `<span class="ds-badge-ok">보고서 ✓${w.total_report_hours ? ' ' + w.total_report_hours + 'h' : ''}</span>`
            : '<span class="ds-badge-no">보고서 ✗</span>';
        const isProxy = w.tbm_sessions?.some(t => t.is_proxy_input) || false;
        const proxyBadge = isProxy
            ? '<span class="ds-badge-proxy">대리입력</span>'
            : '';

        return `
        <div class="ds-worker-row" onclick="openSheet(${w.user_id})">
            <div class="ds-status-dot ${w.status}"></div>
            <div class="ds-worker-info">
                <div class="ds-worker-name">${escHtml(w.worker_name)}</div>
                <div class="ds-worker-dept">${escHtml(w.job_type)} · ${escHtml(w.department_name)}</div>
            </div>
            <div class="ds-worker-status">${tbmBadge}${reportBadge}${proxyBadge}</div>
        </div>`;
    }).join('');
}

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

// ===== Bottom Sheet =====
function openSheet(userId) {
    selectedWorkerId = userId;
    const w = workers.find(x => x.user_id === userId);
    if (!w) return;

    document.getElementById('sheetWorkerName').textContent = w.worker_name;
    document.getElementById('sheetWorkerInfo').textContent = `${w.job_type} · ${w.department_name}`;
    document.getElementById('sheetBody').innerHTML = '<div class="ds-sheet-loading"><i class="fas fa-spinner fa-spin"></i> 로딩 중...</div>';

    document.getElementById('sheetOverlay').classList.remove('hidden');
    document.getElementById('detailSheet').classList.remove('hidden');
    setTimeout(() => document.getElementById('detailSheet').classList.add('open'), 10);

    // 상세 데이터 로드
    loadDetail(userId, w);
}

async function loadDetail(userId, workerBasic) {
    const bodyEl = document.getElementById('sheetBody');
    try {
        let res;
        if (MOCK_ENABLED) {
            res = JSON.parse(JSON.stringify(MOCK_DETAIL));
            res.data.worker = workerBasic;
            // mock: complete 상태면 TBM/보고서 데이터 채우기
            if (workerBasic.has_tbm) {
                res.data.tbm_sessions = [{ session_id: workerBasic.tbm_session_id, session_date: formatDateStr(currentDate), status: 'completed', leader_name: '반장' }];
            }
            if (workerBasic.has_report) {
                res.data.work_reports = [{ report_date: formatDateStr(currentDate), project_name: '프로젝트A', work_type_name: workerBasic.job_type, work_hours: workerBasic.total_report_hours }];
            }
            if (workerBasic.proxy_history) {
                res.data.proxy_history = [workerBasic.proxy_history];
            }
        } else {
            res = await window.apiCall('/proxy-input/daily-status/detail?date=' + formatDateStr(currentDate) + '&user_id=' + userId);
        }

        if (!res || !res.success) { bodyEl.innerHTML = '<div class="ds-sheet-card empty">상세 정보를 불러올 수 없습니다</div>'; return; }

        const d = res.data;
        let html = '';

        // TBM 섹션
        html += '<div class="ds-sheet-section"><div class="ds-sheet-section-title"><i class="fas fa-clipboard-check"></i> TBM</div>';
        if (d.tbm_sessions && d.tbm_sessions.length > 0) {
            html += d.tbm_sessions.map(s => {
                const proxyTag = s.is_proxy_input ? ` · <span class="ds-badge-proxy">대리입력(${escHtml(s.proxy_input_by_name || '-')})</span>` : '';
                return `<div class="ds-sheet-card">세션 #${s.session_id} · ${s.status === 'completed' ? '완료' : '진행중'} · 리더: ${escHtml(s.leader_name || '-')}${proxyTag}</div>`;
            }).join('');
        } else {
            html += '<div class="ds-sheet-card empty">세션 없음</div>';
        }
        html += '</div>';

        // 작업보고서 섹션
        html += '<div class="ds-sheet-section"><div class="ds-sheet-section-title"><i class="fas fa-file-alt"></i> 작업보고서</div>';
        if (d.work_reports && d.work_reports.length > 0) {
            html += d.work_reports.map(r => `<div class="ds-sheet-card">${escHtml(r.project_name || '-')} · ${escHtml(r.work_type_name || '-')} · ${r.work_hours || 0}시간</div>`).join('');
        } else {
            html += '<div class="ds-sheet-card empty">보고서 없음</div>';
        }
        html += '</div>';

        bodyEl.innerHTML = html;

        // 완료 상태면 대리입력 버튼 숨김
        const btn = document.getElementById('sheetProxyBtn');
        btn.style.display = workerBasic.status === 'complete' ? 'none' : 'block';

    } catch (e) {
        bodyEl.innerHTML = '<div class="ds-sheet-card empty">네트워크 오류</div>';
    }
}

function closeSheet() {
    document.getElementById('detailSheet').classList.remove('open');
    setTimeout(() => {
        document.getElementById('sheetOverlay').classList.add('hidden');
        document.getElementById('detailSheet').classList.add('hidden');
    }, 300);
}

// ===== Navigation =====
function goProxyInput() {
    location.href = '/pages/work/proxy-input.html?date=' + formatDateStr(currentDate);
}

function goProxyInputSingle() {
    if (selectedWorkerId) {
        location.href = '/pages/work/proxy-input.html?date=' + formatDateStr(currentDate) + '&user_id=' + selectedWorkerId;
    }
}