feat: add shared validation for chainage and coordinates

src/app/(modules)/segment/components/SegmentDialog.tsx

@@ -182,16 +182,16 @@ export function SegmentDialog({
               <div className="grid gap-4 md:grid-cols-2">
                 <FormField
                   id="segment-start-km"
-                  label="Start (km)"
+                  label="Start Chainage"
                   required
                   error={getError('chainage_start_km')}
                 >
                   <Input
                     id="segment-start-km"
                     type="number"
-                    step="any"
+                    step="1"
                     min="0"
-                    placeholder="0.0"
+                    placeholder="Enter start chainage"
                     aria-invalid={!!getError('chainage_start_km')}
                     {...register('chainage_start_km')}
                   />
@@ -199,16 +199,16 @@ export function SegmentDialog({
 
                 <FormField
                   id="segment-end-km"
-                  label="End (km)"
+                  label="End Chainage"
                   required
                   error={getError('chainage_end_km')}
                 >
                   <Input
                     id="segment-end-km"
                     type="number"
-                    step="any"
+                    step="1"
                     min="0"
-                    placeholder="1.0"
+                    placeholder="Enter end chainage"
                     aria-invalid={!!getError('chainage_end_km')}
                     {...register('chainage_end_km')}
                   />
@@ -312,7 +312,9 @@ export function SegmentDialog({
               Cancel
             </Button>
             <Button type="submit" disabled={isSaving || !canSubmit}>
-              {isSaving ? <Loader2 className="mr-2 size-4 animate-spin" /> : null}
+              {isSaving ? (
+                <Loader2 className="mr-2 size-4 animate-spin" />
+              ) : null}
               {segmentId ? 'Update Segment' : 'Create Segment'}
             </Button>
           </DialogFooter>

src/app/(modules)/segment/hooks/useSegmentForm.ts

@@ -7,49 +7,32 @@ import { useForm, useWatch } from 'react-hook-form';
 import { toast } from 'sonner';
 import { z } from 'zod';
 
+import {
+  requiredIntegerNumber,
+  requiredLatitude,
+  requiredLongitude,
+  validateChainageRange,
+} from '@/lib/validation/numberField';
 import { chainageService } from '@/services/api';
 import type { Chainage, ChainageCreate, ChainageUpdate } from '@/types';
 
 import { segmentKeys } from '../queries/segmentKeys';
 
-const requiredNumber = (message: string) =>
-  z
-    .string()
-    .trim()
-    .min(1, message)
-    .refine((value) => Number.isFinite(Number(value)), {
-      message: 'Enter a valid number',
-    });
-
-const latitude = requiredNumber('Latitude is required').refine(
-  (value) => {
-    const numberValue = Number(value);
-    return numberValue >= -90 && numberValue <= 90;
-  },
-  { message: 'Latitude must be between -90 and 90' },
-);
-
-const longitude = requiredNumber('Longitude is required').refine(
-  (value) => {
-    const numberValue = Number(value);
-    return numberValue >= -180 && numberValue <= 180;
-  },
-  { message: 'Longitude must be between -180 and 180' },
-);
-
-const segmentFormSchema = z.object({
-  id: z.string().optional(),
-  project_id: z.string().trim().min(1, 'Project is required'),
-  package_id: z.string().trim().min(1, 'Package is required'),
-  segment_name: z.string().trim().min(1, 'Segment name is required'),
-  chainage_start_km: requiredNumber('Start km is required'),
-  chainage_end_km: requiredNumber('End km is required'),
-  start_lat: latitude,
-  start_lng: longitude,
-  end_lat: latitude,
-  end_lng: longitude,
-  direction: z.enum(['UP', 'DOWN']),
-});
+const segmentFormSchema = z
+  .object({
+    id: z.string().optional(),
+    project_id: z.string().trim().min(1, 'Project is required'),
+    package_id: z.string().trim().min(1, 'Package is required'),
+    segment_name: z.string().trim().min(1, 'Segment name is required'),
+    chainage_start_km: requiredIntegerNumber('Start km is required'),
+    chainage_end_km: requiredIntegerNumber('End km is required'),
+    start_lat: requiredLatitude,
+    start_lng: requiredLongitude,
+    end_lat: requiredLatitude,
+    end_lng: requiredLongitude,
+    direction: z.enum(['UP', 'DOWN']),
+  })
+  .superRefine(validateChainageRange);
 
 export type SegmentFormValues = z.infer<typeof segmentFormSchema>;