DROP VIEW "public"."enhanced_documents_view";--> statement-breakpoint
CREATE VIEW "public"."enhanced_documents_view" AS (
  WITH document_stats AS (
    SELECT 
      d.id as document_id,
      COUNT(ist.id) as total_stages,
      COUNT(CASE WHEN ist.stage_status IN ('COMPLETED', 'APPROVED') THEN 1 END) as completed_stages,
      CASE 
        WHEN COUNT(ist.id) > 0 
        THEN ROUND((COUNT(CASE WHEN ist.stage_status IN ('COMPLETED', 'APPROVED') THEN 1 END) * 100.0) / COUNT(ist.id))
        ELSE 0 
      END as progress_percentage
    FROM documents d
    LEFT JOIN issue_stages ist ON d.id = ist.document_id
    GROUP BY d.id
  ),
  current_stage_info AS (
    SELECT DISTINCT ON (document_id)
      document_id,
      id as current_stage_id,
      stage_name as current_stage_name,
      stage_status as current_stage_status,
      stage_order as current_stage_order,
      plan_date as current_stage_plan_date,
      actual_date as current_stage_actual_date,
      assignee_name as current_stage_assignee_name,
      priority as current_stage_priority,
      CASE 
        WHEN actual_date IS NULL AND plan_date IS NOT NULL 
        THEN plan_date - CURRENT_DATE
        ELSE NULL 
      END as days_until_due,
      CASE 
        WHEN actual_date IS NULL AND plan_date < CURRENT_DATE 
        THEN true
        WHEN actual_date IS NOT NULL AND actual_date > plan_date 
        THEN true
        ELSE false 
      END as is_overdue,
      CASE 
        WHEN actual_date IS NOT NULL AND plan_date IS NOT NULL 
        THEN actual_date - plan_date
        ELSE NULL 
      END as days_difference
    FROM issue_stages
    WHERE stage_status NOT IN ('COMPLETED', 'APPROVED')
    ORDER BY document_id, stage_order ASC, priority DESC
  ),
  latest_revision_info AS (
    SELECT DISTINCT ON (ist.document_id)
      ist.document_id,
      r.id as latest_revision_id,
      r.revision as latest_revision,
      r.revision_status as latest_revision_status,
      r.uploader_name as latest_revision_uploader_name,
      r.submitted_date as latest_submitted_date
    FROM revisions r
    JOIN issue_stages ist ON r.issue_stage_id = ist.id
    ORDER BY ist.document_id, r.created_at DESC
  ),
  -- 리비전별 첨부파일 집계
  revision_attachments AS (
    SELECT 
      r.id as revision_id,
      COALESCE(
        json_agg(
          json_build_object(
            'id', da.id,
            'revisionId', da.revision_id,
            'fileName', da.file_name,
            'filePath', da.file_path,
            'fileSize', da.file_size,
            'fileType', da.file_type,
            'createdAt', da.created_at,
            'updatedAt', da.updated_at
          ) ORDER BY da.created_at
        ) FILTER (WHERE da.id IS NOT NULL),
        '[]'::json
      ) as attachments
    FROM revisions r
    LEFT JOIN document_attachments da ON r.id = da.revision_id
    GROUP BY r.id
  ),
  -- 스테이지별 리비전 집계 (첨부파일 포함)
  stage_revisions AS (
    SELECT 
      ist.id as stage_id,
      COALESCE(
        json_agg(
          json_build_object(
            'id', r.id,
            'issueStageId', r.issue_stage_id,
            'revision', r.revision,
            'uploaderType', r.uploader_type,
            'uploaderId', r.uploader_id,
            'uploaderName', r.uploader_name,
            'comment', r.comment,
            'revisionStatus', r.revision_status,
            'submittedDate', r.submitted_date,
            'approvedDate', r.approved_date,
            'reviewStartDate', r.review_start_date,
            'rejectedDate', r.rejected_date,
            'reviewerId', r.reviewer_id,
            'reviewerName', r.reviewer_name,
            'reviewComments', r.review_comments,
            'createdAt', r.created_at,
            'updatedAt', r.updated_at,
            'attachments', ra.attachments
          ) ORDER BY r.created_at
        ) FILTER (WHERE r.id IS NOT NULL),
        '[]'::json
      ) as revisions
    FROM issue_stages ist
    LEFT JOIN revisions r ON ist.id = r.issue_stage_id
    LEFT JOIN revision_attachments ra ON r.id = ra.revision_id
    GROUP BY ist.id
  ),
  -- 문서별 스테이지 집계 (리비전 포함)
  stage_aggregation AS (
    SELECT 
      ist.document_id,
      json_agg(
        json_build_object(
          'id', ist.id,
          'stageName', ist.stage_name,
          'stageStatus', ist.stage_status,
          'stageOrder', ist.stage_order,
          'planDate', ist.plan_date,
          'actualDate', ist.actual_date,
          'assigneeName', ist.assignee_name,
          'priority', ist.priority,
          'revisions', sr.revisions
        ) ORDER BY ist.stage_order
      ) as all_stages
    FROM issue_stages ist
    LEFT JOIN stage_revisions sr ON ist.id = sr.stage_id
    GROUP BY ist.document_id
  ),
  attachment_counts AS (
    SELECT 
      ist.document_id,
      COUNT(da.id) as attachment_count
    FROM issue_stages ist
    LEFT JOIN revisions r ON ist.id = r.issue_stage_id
    LEFT JOIN document_attachments da ON r.id = da.revision_id
    GROUP BY ist.document_id
  )
  
  SELECT 
    d.id as document_id,
    d.doc_number,
    d.title,
    d.pic,
    d.status,
    d.issued_date,
    d.contract_id,
    
    -- ✅ 프로젝트 및 벤더 정보 추가
    p.code as project_code,
    v.name as vendor_name,
    v.code as vendor_code,
    
    -- 현재 스테이지 정보
    csi.current_stage_id,
    csi.current_stage_name,
    csi.current_stage_status,
    csi.current_stage_order,
    csi.current_stage_plan_date,
    csi.current_stage_actual_date,
    csi.current_stage_assignee_name,
    csi.current_stage_priority,
    
    -- 계산 필드
    csi.days_until_due,
    csi.is_overdue,
    csi.days_difference,
    
    -- 진행률 정보
    ds.total_stages,
    ds.completed_stages,
    ds.progress_percentage,
    
    -- 최신 리비전 정보
    lri.latest_revision_id,
    lri.latest_revision,
    lri.latest_revision_status,
    lri.latest_revision_uploader_name,
    lri.latest_submitted_date,
    
    -- 전체 스테이지 (리비전 및 첨부파일 포함)
    COALESCE(sa.all_stages, '[]'::json) as all_stages,
    
    -- 기타
    COALESCE(ac.attachment_count, 0) as attachment_count,
    d.created_at,
    d.updated_at
    
  FROM documents d
  -- ✅ contracts, projects, vendors 테이블 JOIN 추가
  LEFT JOIN contracts c ON d.contract_id = c.id
  LEFT JOIN projects p ON c.project_id = p.id
  LEFT JOIN vendors v ON c.vendor_id = v.id
  
  LEFT JOIN document_stats ds ON d.id = ds.document_id
  LEFT JOIN current_stage_info csi ON d.id = csi.document_id
  LEFT JOIN latest_revision_info lri ON d.id = lri.document_id
  LEFT JOIN stage_aggregation sa ON d.id = sa.document_id
  LEFT JOIN attachment_counts ac ON d.id = ac.document_id
  
  ORDER BY d.created_at DESC
);