-- Items with manufacturing complete but not yet shipped to vendor
-- WOs that have an outside process material (EXTLAB) with no open PO
SELECT
    fi.item_number AS finished_pn,
    fi.item_descrip1 AS finished_desc,
    mi.item_number AS manufactured_pn,
    opi.item_number AS ext_labor_pn,
    wm_mfg.womatl_qtyiss AS qty_ready,
    to_char(COALESCE(mfg_wo.wo_duedate, parent_wo.wo_startdate), 'YYYY-MM-DD') AS date_in_stockroom,
    (CURRENT_DATE - COALESCE(mfg_wo.wo_duedate, parent_wo.wo_startdate)::date) AS days_waiting,
    COALESCE(dv.vend_name, '') AS expected_vendor,
    COALESCE((
        SELECT SUM(w2.wo_qtyord - w2.wo_qtyrcv)
        FROM wo w2
        JOIN itemsite is2 ON w2.wo_itemsite_id = is2.itemsite_id
        WHERE is2.itemsite_item_id = fi.item_id
          AND w2.wo_status IN ('R','E','I')
    ), 0) AS wo_demand
FROM wo parent_wo
JOIN itemsite fis ON parent_wo.wo_itemsite_id = fis.itemsite_id
JOIN item fi ON fis.itemsite_item_id = fi.item_id
-- Find the outside process material on this WO
JOIN womatl wm_op ON parent_wo.wo_id = wm_op.womatl_wo_id
JOIN itemsite opis ON wm_op.womatl_itemsite_id = opis.itemsite_id
JOIN item opi ON opis.itemsite_item_id = opi.item_id
JOIN classcode cc ON opi.item_classcode_id = cc.classcode_id
-- Find the manufactured part material on this WO
JOIN womatl wm_mfg ON parent_wo.wo_id = wm_mfg.womatl_wo_id
    AND wm_mfg.womatl_id != wm_op.womatl_id
JOIN itemsite mis ON wm_mfg.womatl_itemsite_id = mis.itemsite_id
JOIN item mi ON mis.itemsite_item_id = mi.item_id
JOIN classcode cc_mfg ON mi.item_classcode_id = cc_mfg.classcode_id
-- Find closed sub-WO for the manufactured part
LEFT JOIN wo mfg_wo ON mfg_wo.wo_ordtype = 'W'
    AND mfg_wo.wo_itemsite_id = mis.itemsite_id
    AND mfg_wo.wo_status = 'C'
-- Default vendor for the outside process item
LEFT JOIN itemsrc isrc ON isrc.itemsrc_item_id = opi.item_id AND isrc.itemsrc_active
LEFT JOIN vendinfo dv ON isrc.itemsrc_vend_id = dv.vend_id
WHERE cc.classcode_code = 'EXTLAB'
  AND opi.item_type = 'O'
  AND cc_mfg.classcode_code != 'EXTLAB'
  AND mi.item_type != 'O'
  AND parent_wo.wo_status IN ('R','E','I')
  -- Manufactured material has been issued (machining complete)
  AND wm_mfg.womatl_qtyiss > 0
  -- No open PO exists for the outside process item on this WO
  AND NOT EXISTS (
      SELECT 1 FROM poitem pi2
      JOIN pohead ph2 ON pi2.poitem_pohead_id = ph2.pohead_id
      WHERE pi2.poitem_itemsite_id = opis.itemsite_id
        AND ph2.pohead_status = 'O'
        AND pi2.poitem_status = 'O'
  )
ORDER BY days_waiting DESC, finished_pn;