// mobile-dashboard.js - 모바일 대시보드 v2
// 공장별 카테고리 탭 → 작업장 리스트 → 작업장별 상태 요약

(function() {
  'use strict';

  if (window.innerWidth > 768) return;

  var today = new Date().toISOString().slice(0, 10);

  // ==================== 캐시 변수 ====================
  var categories = [];
  var allWorkplaces = [];
  var tbmByWorkplace = {};
  var visitorsByWorkplace = {};
  var movedByWorkplace = {};
  var issuesByWorkplace = {};
  var workplacesByCategory = {};

  // ==================== 유틸리티 ====================
  // escapeHtml, waitForApi → api-base.js 전역 사용

  // ==================== 데이터 그룹핑 ====================

  function groupTbmByWorkplace(sessions) {
    tbmByWorkplace = {};
    if (!Array.isArray(sessions)) return;
    sessions.forEach(function(s) {
      var wpId = s.workplace_id;
      if (!wpId) return;
      if (!tbmByWorkplace[wpId]) {
        tbmByWorkplace[wpId] = { taskCount: 0, totalWorkers: 0, sessions: [] };
      }
      tbmByWorkplace[wpId].taskCount++;
      tbmByWorkplace[wpId].totalWorkers += (parseInt(s.team_member_count) || 0);
      tbmByWorkplace[wpId].sessions.push(s);
    });
  }

  function groupVisitorsByWorkplace(requests) {
    visitorsByWorkplace = {};
    if (!Array.isArray(requests)) return;
    requests.forEach(function(r) {
      // 오늘 날짜 + 승인된 건만
      if (r.visit_date !== today) return;
      if (r.status !== 'approved') return;
      var wpId = r.workplace_id;
      if (!wpId) return;
      if (!visitorsByWorkplace[wpId]) {
        visitorsByWorkplace[wpId] = { visitCount: 0, totalVisitors: 0, requests: [] };
      }
      visitorsByWorkplace[wpId].visitCount++;
      visitorsByWorkplace[wpId].totalVisitors += parseInt(r.visitor_count) || 0;
      visitorsByWorkplace[wpId].requests.push(r);
    });
  }

  function groupMovedByWorkplace(items) {
    movedByWorkplace = {};
    if (!Array.isArray(items)) return;
    items.forEach(function(eq) {
      var wpId = eq.current_workplace_id;
      if (!wpId) return;
      if (!movedByWorkplace[wpId]) {
        movedByWorkplace[wpId] = { movedCount: 0, items: [] };
      }
      movedByWorkplace[wpId].movedCount++;
      movedByWorkplace[wpId].items.push(eq);
    });
  }

  function groupIssuesByWorkplace(issues) {
    issuesByWorkplace = {};
    if (!Array.isArray(issues)) return;
    var activeStatuses = ['reported', 'received', 'in_progress'];
    issues.forEach(function(issue) {
      var wpId = issue.workplace_id;
      if (!wpId) return;
      if (activeStatuses.indexOf(issue.status) === -1) return;
      if (!issuesByWorkplace[wpId]) {
        issuesByWorkplace[wpId] = { activeCount: 0, items: [] };
      }
      issuesByWorkplace[wpId].activeCount++;
      issuesByWorkplace[wpId].items.push(issue);
    });
  }

  function groupWorkplacesByCategory(workplaces) {
    workplacesByCategory = {};
    if (!Array.isArray(workplaces)) return;
    workplaces.forEach(function(wp) {
      var catId = wp.category_id;
      if (!catId) return;
      if (!workplacesByCategory[catId]) {
        workplacesByCategory[catId] = [];
      }
      workplacesByCategory[catId].push(wp);
    });
  }

  // ==================== 렌더링 ====================

  function renderCategoryTabs() {
    var container = document.getElementById('mCategoryTabs');
    if (!container || !categories.length) return;

    var html = '';
    categories.forEach(function(cat, idx) {
      html += '<button class="md-cat-tab' + (idx === 0 ? ' active' : '') +
        '" data-id="' + cat.category_id + '">' +
        escapeHtml(cat.category_name) + '</button>';
    });

    // 전체 탭
    html += '<button class="md-cat-tab" data-id="all">전체</button>';

    container.innerHTML = html;

    // 이벤트 바인딩
    var tabs = container.querySelectorAll('.md-cat-tab');
    tabs.forEach(function(tab) {
      tab.addEventListener('click', function() {
        tabs.forEach(function(t) { t.classList.remove('active'); });
        tab.classList.add('active');
        var catId = tab.getAttribute('data-id');
        selectCategory(catId);
      });
    });

    // 첫 번째 카테고리 자동 선택
    if (categories.length > 0) {
      selectCategory(String(categories[0].category_id));
    }
  }

  function selectCategory(categoryId) {
    var workplaces;
    if (categoryId === 'all') {
      workplaces = allWorkplaces.filter(function(wp) { return wp.is_active !== false; });
    } else {
      workplaces = (workplacesByCategory[categoryId] || []).filter(function(wp) {
        return wp.is_active !== false;
      });
    }
    renderWorkplaceList(workplaces);
  }

  function renderWorkplaceList(workplaces) {
    var container = document.getElementById('mWorkplaceList');
    if (!container) return;

    if (!workplaces || workplaces.length === 0) {
      container.innerHTML = '<div class="md-wp-empty-all">등록된 작업장이 없습니다.</div>';
      return;
    }

    var html = '';
    workplaces.forEach(function(wp) {
      var wpId = wp.workplace_id;
      var tbm = tbmByWorkplace[wpId];
      var visitors = visitorsByWorkplace[wpId];
      var moved = movedByWorkplace[wpId];
      var issues = issuesByWorkplace[wpId];

      var hasAny = tbm || visitors || moved || issues;

      html += '<div class="md-wp-card" data-wp-id="' + wpId + '">';

      // 헤더 (클릭 영역)
      html += '<div class="md-wp-header">';
      html += '<h3 class="md-wp-name">' + escapeHtml(wp.workplace_name);
      if (hasAny) {
        html += '<span class="md-wp-toggle">&#9660;</span>';
      }
      html += '</h3>';

      if (!hasAny) {
        html += '<p class="md-wp-no-activity">오늘 활동이 없습니다</p>';
      } else {
        html += '<div class="md-wp-stats">';

        // TBM 작업
        if (tbm) {
          html += '<div class="md-wp-stat-row">' +
            '<span class="md-wp-stat-icon">&#128736;</span>' +
            '<span class="md-wp-stat-text">작업 ' + tbm.taskCount + '건 &middot; ' + tbm.totalWorkers + '명</span>' +
            '</div>';
        }

        // 방문
        if (visitors) {
          html += '<div class="md-wp-stat-row">' +
            '<span class="md-wp-stat-icon">&#128682;</span>' +
            '<span class="md-wp-stat-text">방문 ' + visitors.visitCount + '건 &middot; ' + visitors.totalVisitors + '명</span>' +
            '</div>';
        }

        // 신고 (미완료만)
        if (issues && issues.activeCount > 0) {
          html += '<div class="md-wp-stat-row md-wp-stat--warning">' +
            '<span class="md-wp-stat-icon">&#9888;</span>' +
            '<span class="md-wp-stat-text">신고 ' + issues.activeCount + '건</span>' +
            '</div>';
        }

        // 이동설비
        if (moved && moved.movedCount > 0) {
          html += '<div class="md-wp-stat-row">' +
            '<span class="md-wp-stat-icon">&#8596;</span>' +
            '<span class="md-wp-stat-text">이동설비 ' + moved.movedCount + '건</span>' +
            '</div>';
        }

        html += '</div>';
      }

      html += '</div>'; // .md-wp-header

      // 상세 영역 (활동 있는 카드만)
      if (hasAny) {
        html += '<div class="md-wp-detail">' + renderCardDetail(wpId) + '</div>';
      }

      html += '</div>'; // .md-wp-card
    });

    container.innerHTML = html;

    // 클릭 이벤트 바인딩
    var cards = container.querySelectorAll('.md-wp-card[data-wp-id]');
    cards.forEach(function(card) {
      var wpId = card.getAttribute('data-wp-id');
      var hasActivity = tbmByWorkplace[wpId] || visitorsByWorkplace[wpId] ||
                        movedByWorkplace[wpId] || issuesByWorkplace[wpId];
      if (!hasActivity) return;
      card.querySelector('.md-wp-header').addEventListener('click', function() {
        toggleCard(wpId);
      });
    });
  }

  // ==================== 카드 확장/접기 ====================

  function toggleCard(wpId) {
    var allCards = document.querySelectorAll('.md-wp-card.expanded');
    var targetCard = document.querySelector('.md-wp-card[data-wp-id="' + wpId + '"]');
    if (!targetCard) return;

    var isExpanded = targetCard.classList.contains('expanded');

    // 다른 카드 모두 접기 (아코디언)
    allCards.forEach(function(card) {
      card.classList.remove('expanded');
    });

    // 토글
    if (!isExpanded) {
      targetCard.classList.add('expanded');
    }
  }

  function renderCardDetail(wpId) {
    var html = '';
    var tbm = tbmByWorkplace[wpId];
    var visitors = visitorsByWorkplace[wpId];
    var issues = issuesByWorkplace[wpId];
    var moved = movedByWorkplace[wpId];

    // TBM 작업
    if (tbm && tbm.sessions.length > 0) {
      html += '<div class="md-wp-detail-section">';
      html += '<div class="md-wp-detail-title">&#9654; 작업</div>';
      tbm.sessions.forEach(function(s) {
        var taskName = s.task_name || '작업명 미지정';
        var leaderName = s.leader_name || '미지정';
        var memberCount = (parseInt(s.team_member_count) || 0);
        html += '<div class="md-wp-detail-item">';
        html += '<div class="md-wp-detail-main">' + escapeHtml(taskName) + '</div>';
        html += '<div class="md-wp-detail-sub">' + escapeHtml(leaderName) + ' &middot; ' + memberCount + '명</div>';
        html += '</div>';
      });
      html += '</div>';
    }

    // 방문
    if (visitors && visitors.requests.length > 0) {
      html += '<div class="md-wp-detail-section">';
      html += '<div class="md-wp-detail-title">&#9654; 방문</div>';
      visitors.requests.forEach(function(r) {
        var company = r.visitor_company || '업체 미지정';
        var count = parseInt(r.visitor_count) || 0;
        var purpose = r.purpose_name || '';
        html += '<div class="md-wp-detail-item">';
        html += '<div class="md-wp-detail-main">' + escapeHtml(company) + ' &middot; ' + count + '명';
        if (purpose) html += ' &middot; ' + escapeHtml(purpose);
        html += '</div>';
        html += '</div>';
      });
      html += '</div>';
    }

    // 신고
    if (issues && issues.items.length > 0) {
      var statusMap = { reported: '신고', received: '접수', in_progress: '처리중' };
      html += '<div class="md-wp-detail-section">';
      html += '<div class="md-wp-detail-title">&#9654; 신고</div>';
      issues.items.forEach(function(issue) {
        var category = issue.issue_category_name || '미분류';
        var desc = issue.additional_description || '';
        if (desc.length > 30) desc = desc.substring(0, 30) + '...';
        var statusText = statusMap[issue.status] || issue.status;
        var statusClass = 'md-wp-issue-status--' + (issue.status || 'reported');
        var reporter = issue.reporter_name || '';
        var icon = issue.status === 'in_progress' ? '&#128308;' : '&#9888;';
        html += '<div class="md-wp-detail-item">';
        html += '<div class="md-wp-detail-main">' + icon + ' ' + escapeHtml(category);
        if (desc) html += ' &middot; ' + escapeHtml(desc);
        html += '</div>';
        html += '<div class="md-wp-detail-sub"><span class="md-wp-issue-status ' + statusClass + '">' + statusText + '</span>';
        if (reporter) html += ' &rarr; ' + escapeHtml(reporter);
        html += '</div>';
        html += '</div>';
      });
      html += '</div>';
    }

    // 이동설비
    if (moved && moved.items.length > 0) {
      html += '<div class="md-wp-detail-section">';
      html += '<div class="md-wp-detail-title">&#9654; 이동설비</div>';
      moved.items.forEach(function(eq) {
        var eqName = eq.equipment_name || '설비명 미지정';
        var fromWp = eq.original_workplace_name || '?';
        var toWp = eq.current_workplace_name || '?';
        html += '<div class="md-wp-detail-item">';
        html += '<div class="md-wp-detail-main">' + escapeHtml(eqName) + '</div>';
        html += '<div class="md-wp-detail-sub">' + escapeHtml(fromWp) + ' &rarr; ' + escapeHtml(toWp) + '</div>';
        html += '</div>';
      });
      html += '</div>';
    }

    return html;
  }

  // ==================== 초기화 ====================

  document.addEventListener('DOMContentLoaded', async function() {
    try {
      await waitForApi();
    } catch (e) {
      console.error('mobile-dashboard: apiCall not available');
      return;
    }

    var view = document.getElementById('mobileDashboardView');
    if (!view) return;
    view.style.display = 'block';

    // 날짜 표시
    var now = new Date();
    var days = ['일', '월', '화', '수', '목', '금', '토'];
    var dateEl = document.getElementById('mDateValue');
    if (dateEl) {
      dateEl.textContent = now.getFullYear() + '.' +
        String(now.getMonth() + 1).padStart(2, '0') + '.' +
        String(now.getDate()).padStart(2, '0') + ' (' + days[now.getDay()] + ')';
    }

    // 로딩 표시
    var listContainer = document.getElementById('mWorkplaceList');
    if (listContainer) {
      listContainer.innerHTML =
        '<div class="md-skeleton"></div>' +
        '<div class="md-skeleton" style="margin-top:8px;"></div>' +
        '<div class="md-skeleton" style="margin-top:8px;"></div>';
    }

    // 데이터 병렬 로딩
    var results = await Promise.allSettled([
      window.apiCall('/workplaces/categories'),
      window.apiCall('/tbm/sessions/date/' + today),
      window.apiCall('/workplace-visits/requests?visit_date=' + today + '&status=approved'),
      window.apiCall('/equipments/moved/list'),
      window.apiCall('/work-issues?start_date=' + today + '&end_date=' + today),
      window.apiCall('/workplaces')
    ]);

    // 카테고리
    if (results[0].status === 'fulfilled' && results[0].value && results[0].value.success) {
      categories = results[0].value.data || [];
    }

    // TBM
    if (results[1].status === 'fulfilled' && results[1].value && results[1].value.success) {
      groupTbmByWorkplace(results[1].value.data || []);
    }

    // 방문
    if (results[2].status === 'fulfilled' && results[2].value && results[2].value.success) {
      groupVisitorsByWorkplace(results[2].value.data || []);
    }

    // 이동설비
    if (results[3].status === 'fulfilled' && results[3].value && results[3].value.success) {
      groupMovedByWorkplace(results[3].value.data || []);
    }

    // 신고
    if (results[4].status === 'fulfilled' && results[4].value && results[4].value.success) {
      groupIssuesByWorkplace(results[4].value.data || []);
    }

    // 작업장 전체 (카테고리별 그룹핑)
    if (results[5].status === 'fulfilled' && results[5].value && results[5].value.success) {
      allWorkplaces = results[5].value.data || [];
      groupWorkplacesByCategory(allWorkplaces);
    }

    // 렌더링
    renderCategoryTabs();
  });
})();