/// <reference path="../pb_data/types.d.ts" />
//
// M15 — Widen repairOrders rules for technician viewing and
//        technicianAssignments createRule for technician self-assignment.
//
// repairOrders:
//   Previously: userId = @request.auth.id (M4 rule)
//   Now:        userId = @request.auth.id || (userId = @request.auth.shopUserId && @request.auth.role = 'technician')
//   This lets technicians list/view their shop's active repair orders.
//
// technicianAssignments:
//   Previously: shopUserId = @request.auth.id (M11 rule)
//   Now:        shopUserId = @request.auth.id || (shopUserId = @request.auth.shopUserId && @request.auth.role = 'technician')
//   This lets technicians create assignment records for self-claimed jobs.

migrate(
  (db) => {
    // ── repairOrders: widen listRule and viewRule ──────────────────────────
    const roCol = db.findCollectionByNameOrId('repairOrders');
    if (roCol) {
      const techRule = "(userId = @request.auth.shopUserId && @request.auth.role = 'technician')";
      const current = roCol.listRule;
      // Only apply if the widened rule isn't already set (idempotent)
      if (current !== 'userId = @request.auth.id' && current?.includes('technician')) {
        console.log('[M15] repairOrders already widened — no change');
      } else {
        roCol.listRule = `userId = @request.auth.id || ${techRule}`;
        roCol.viewRule = `userId = @request.auth.id || ${techRule}`;
        db.save(roCol);
        console.log('[M15] widened repairOrders listRule/viewRule for technician access');
      }
    } else {
      console.warn('[M15] repairOrders collection not found — skipping');
    }

    // ── technicianAssignments: widen createRule ─────────────────────────────
    const taCol = db.findCollectionByNameOrId('technicianAssignments');
    if (taCol) {
      const techCreateRule = "(shopUserId = @request.auth.shopUserId && @request.auth.role = 'technician')";
      const current = taCol.createRule;
      if (current !== 'shopUserId = @request.auth.id' && current?.includes('technician')) {
        console.log('[M15] technicianAssignments createRule already widened — no change');
      } else {
        taCol.createRule = `shopUserId = @request.auth.id || ${techCreateRule}`;
        db.save(taCol);
        console.log('[M15] widened technicianAssignments createRule for technician self-assignment');
      }
    } else {
      console.warn('[M15] technicianAssignments collection not found — skipping');
    }
  },
  (db) => {
    // Rollback: restore M4 rules for repairOrders
    const roCol = db.findCollectionByNameOrId('repairOrders');
    if (roCol) {
      roCol.listRule = 'userId = @request.auth.id';
      roCol.viewRule = 'userId = @request.auth.id';
      db.save(roCol);
    }

    // Rollback: restore M11 rule for technicianAssignments
    const taCol = db.findCollectionByNameOrId('technicianAssignments');
    if (taCol) {
      taCol.createRule = 'shopUserId = @request.auth.id';
      db.save(taCol);
    }
  }
);