const fs = require('fs');

// 1. Patch CatalogueService
const catPath = 'C:/Users/CSH12/Desktop/AI_Pharmacy_Api/AI_Pharmacy_Api/src/modules/catalogue/service.ts';
let catCode = fs.readFileSync(catPath, 'utf8');

// searchDrugs
catCode = catCode.replace(
  `(SELECT COALESCE(SUM(qty_on_hand), 0) FROM batches WHERE product_id = p.id AND expiry > CURRENT_DATE AND tenant_id = $3) as total_stock`,
  `(SELECT COALESCE(SUM(qty_on_hand), 0) FROM batches WHERE product_id = p.id AND expiry > CURRENT_DATE) as total_stock`
);
catCode = catCode.replace(
  `AND (p.tenant_id = $3 OR p.tenant_id IS NULL)`,
  `-- AND (p.tenant_id = $3 OR p.tenant_id IS NULL)`
);

// getAllDrugs
catCode = catCode.replace(
  `(SELECT COALESCE(SUM(qty_on_hand), 0) FROM batches WHERE product_id = p.id AND expiry > CURRENT_DATE AND tenant_id = $2) as total_stock`,
  `(SELECT COALESCE(SUM(qty_on_hand), 0) FROM batches WHERE product_id = p.id AND expiry > CURRENT_DATE) as total_stock`
);
catCode = catCode.replace(
  `WHERE p.tenant_id = $2 OR EXISTS (SELECT 1 FROM batches WHERE product_id = p.id AND tenant_id = $2) OR p.tenant_id IS NULL`,
  `WHERE EXISTS (SELECT 1 FROM batches WHERE product_id = p.id) OR p.tenant_id IS NULL OR p.tenant_id = $2`
);

fs.writeFileSync(catPath, catCode);


// 2. Patch InventoryService
const invPath = 'C:/Users/CSH12/Desktop/AI_Pharmacy_Api/AI_Pharmacy_Api/src/modules/inventory/service.ts';
let invCode = fs.readFileSync(invPath, 'utf8');

invCode = invCode.replace(
  `AND b.expiry <= CURRENT_DATE + $1::int\n        AND b.tenant_id = $2`,
  `AND b.expiry <= CURRENT_DATE + $1::int\n        -- AND b.tenant_id = $2`
);

invCode = invCode.replace(
  `AND b.qty_on_hand <= $1::int\n        AND b.tenant_id = $2`,
  `AND b.qty_on_hand <= $1::int\n        -- AND b.tenant_id = $2`
);

fs.writeFileSync(invPath, invCode);

console.log("Successfully removed tenant_id filters to make stock global.");