feat: add shared validation for chainage and coordinates

src/app/(modules)/package/components/PackageDialog.tsx

@@ -74,7 +74,11 @@ export function PackageDialog({
           </DialogDescription>
         </DialogHeader>
 
-        <form noValidate onSubmit={onSubmit} className="flex min-h-0 flex-1 flex-col">
+        <form
+          noValidate
+          onSubmit={onSubmit}
+          className="flex min-h-0 flex-1 flex-col"
+        >
           <div className="max-h-[58vh] space-y-6 overflow-y-auto px-6 py-4">
             <section className="space-y-4">
               <div className="space-y-1">
@@ -120,7 +124,7 @@ export function PackageDialog({
                 <FormField id="package-region" label="Region">
                   <Input
                     id="package-region"
-                    placeholder="North Zone"
+                    placeholder="Enter region"
                     {...register('region')}
                   />
                 </FormField>
@@ -131,21 +135,22 @@ export function PackageDialog({
               <div className="space-y-1">
                 <h3 className="text-sm font-semibold">Chainage range</h3>
                 <p className="text-sm text-muted-foreground">
-                  Optional start and end kilometre values.
+                  start and end kilometre values.
                 </p>
               </div>
 
               <div className="grid gap-4 md:grid-cols-2">
                 <FormField
                   id="package-start"
-                  label="Start (km)"
+                  label="Start Chainage"
                   error={startErrorMessage}
                 >
                   <Input
                     id="package-start"
                     type="number"
-                    step="0.01"
+                    step="1"
-                    placeholder="0.00"
+                    min="0"
+                    placeholder="Enter start chainage"
                     aria-invalid={!!startErrorMessage}
                     {...register('chainage_start_km')}
                   />
@@ -153,14 +158,15 @@ export function PackageDialog({
 
                 <FormField
                   id="package-end"
-                  label="End (km)"
+                  label="End Chainage"
                   error={endErrorMessage}
                 >
                   <Input
                     id="package-end"
                     type="number"
-                    step="0.01"
+                    step="1"
-                    placeholder="0.00"
+                    min="0"
+                    placeholder="Enter end chainage"
                     aria-invalid={!!endErrorMessage}
                     {...register('chainage_end_km')}
                   />
@@ -179,7 +185,9 @@ export function PackageDialog({
               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}
               {packageId ? 'Update Package' : 'Create Package'}
             </Button>
           </DialogFooter>

src/app/(modules)/package/hooks/usePackageForm.ts

@@ -7,29 +7,25 @@ import { useForm, useWatch } from 'react-hook-form';
 import { toast } from 'sonner';
 import { z } from 'zod';
 
+import {
+  optionalIntegerNumber,
+  validateChainageRange,
+} from '@/lib/validation/numberField';
 import { packageService } from '@/services/api';
 import type { Package, PackageCreate, PackageUpdate } from '@/types';
 
 import { packageKeys } from '../queries/packageKeys';
 
-const optionalNumber = z.string().refine(
+const packageFormSchema = z
-  (value) => {
+  .object({
-    if (!value.trim()) {
-      return true;
-    }
-    return Number.isFinite(Number(value));
-  },
-  { message: 'Enter a valid number' },
-);
-
-const packageFormSchema = z.object({
     id: z.string().optional(),
     project_id: z.string().trim().min(1, 'Project is required'),
     name: z.string().trim().min(1, 'Package name is required'),
     region: z.string().optional(),
-  chainage_start_km: optionalNumber,
+    chainage_start_km: optionalIntegerNumber,
-  chainage_end_km: optionalNumber,
+    chainage_end_km: optionalIntegerNumber,
-});
+  })
+  .superRefine(validateChainageRange);
 
 export type PackageFormValues = z.infer<typeof packageFormSchema>;
 

src/app/(modules)/project/components/ProjectDialog.tsx

@@ -66,7 +66,11 @@ export function ProjectDialog({
           </DialogDescription>
         </DialogHeader>
 
-        <form noValidate onSubmit={onSubmit} className="flex min-h-0 flex-1 flex-col">
+        <form
+          noValidate
+          onSubmit={onSubmit}
+          className="flex min-h-0 flex-1 flex-col"
+        >
           <div className="max-h-[58vh] space-y-6 overflow-y-auto px-6 py-4">
             <section className="space-y-4">
               <div className="space-y-1">
@@ -94,14 +98,14 @@ export function ProjectDialog({
                 <FormField id="project-state" label="State">
                   <Input
                     id="project-state"
-                    placeholder="Maharashtra"
+                    placeholder="Enter state"
                     {...register('state')}
                   />
                 </FormField>
                 <FormField id="project-corridor" label="Corridor Name">
                   <Input
                     id="project-corridor"
-                    placeholder="Mumbai-Goa Highway"
+                    placeholder="Enter corridor name"
                     {...register('corridor_name')}
                   />
                 </FormField>
@@ -127,7 +131,9 @@ export function ProjectDialog({
                       id="project-start-lat"
                       type="number"
                       step="any"
-                      placeholder="0.0000"
+                      min="-90"
+                      max="90"
+                      placeholder="Enter start latitude"
                       aria-invalid={!!startLatErrorMessage}
                       {...register('start_lat')}
                     />
@@ -141,7 +147,9 @@ export function ProjectDialog({
                       id="project-start-lng"
                       type="number"
                       step="any"
-                      placeholder="0.0000"
+                      min="-180"
+                      max="180"
+                      placeholder="Enter start longitude"
                       aria-invalid={!!startLngErrorMessage}
                       {...register('start_lng')}
                     />
@@ -158,7 +166,9 @@ export function ProjectDialog({
                       id="project-end-lat"
                       type="number"
                       step="any"
-                      placeholder="0.0000"
+                      min="-90"
+                      max="90"
+                      placeholder="Enter end latitude"
                       aria-invalid={!!endLatErrorMessage}
                       {...register('end_lat')}
                     />
@@ -172,7 +182,9 @@ export function ProjectDialog({
                       id="project-end-lng"
                       type="number"
                       step="any"
-                      placeholder="0.0000"
+                      min="-180"
+                      max="180"
+                      placeholder="Enter end longitude"
                       aria-invalid={!!endLngErrorMessage}
                       {...register('end_lng')}
                     />
@@ -192,7 +204,9 @@ export function ProjectDialog({
               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}
               {projectId ? 'Update Project' : 'Create Project'}
             </Button>
           </DialogFooter>

src/app/(modules)/project/hooks/useProjectForm.ts

@@ -7,30 +7,24 @@ import { useForm, useWatch } from 'react-hook-form';
 import { toast } from 'sonner';
 import { z } from 'zod';
 
+import {
+  optionalLatitude,
+  optionalLongitude,
+} from '@/lib/validation/numberField';
 import { projectService } from '@/services/api';
 import type { Project, ProjectCreate, ProjectUpdate } from '@/types';
 
 import { projectKeys } from '../queries/projectKeys';
 
-const optionalCoordinate = z.string().refine(
-  (value) => {
-    if (!value.trim()) {
-      return true;
-    }
-    return Number.isFinite(Number(value));
-  },
-  { message: 'Enter a valid number' },
-);
-
 const projectFormSchema = z.object({
   id: z.string().optional(),
   name: z.string().trim().min(1, 'Project name is required'),
   state: z.string().optional(),
   corridor_name: z.string().optional(),
-  start_lat: optionalCoordinate,
+  start_lat: optionalLatitude,
-  start_lng: optionalCoordinate,
+  start_lng: optionalLongitude,
-  end_lat: optionalCoordinate,
+  end_lat: optionalLatitude,
-  end_lng: optionalCoordinate,
+  end_lng: optionalLongitude,
 });
 
 export type ProjectFormValues = z.infer<typeof projectFormSchema>;

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) =>
+const segmentFormSchema = z
-  z
+  .object({
-    .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_start_km: requiredIntegerNumber('Start km is required'),
-  chainage_end_km: requiredNumber('End km is required'),
+    chainage_end_km: requiredIntegerNumber('End km is required'),
-  start_lat: latitude,
+    start_lat: requiredLatitude,
-  start_lng: longitude,
+    start_lng: requiredLongitude,
-  end_lat: latitude,
+    end_lat: requiredLatitude,
-  end_lng: longitude,
+    end_lng: requiredLongitude,
     direction: z.enum(['UP', 'DOWN']),
-});
+  })
+  .superRefine(validateChainageRange);
 
 export type SegmentFormValues = z.infer<typeof segmentFormSchema>;
 

src/lib/validation/numberField.ts

@@ -0,0 +1,127 @@
+import { z } from 'zod';
+
+interface ChainageRangeValues {
+  chainage_start_km: string;
+  chainage_end_km: string;
+}
+
+function isNonNegativeWholeNumberText(value: string) {
+  return /^\d+$/.test(value.trim());
+}
+
+function isFiniteNumberText(value: string) {
+  return Number.isFinite(Number(value.trim()));
+}
+
+function coordinateSchema({
+  requiredMessage,
+  rangeMessage,
+  min,
+  max,
+}: {
+  requiredMessage?: string;
+  rangeMessage: string;
+  min: number;
+  max: number;
+}) {
+  const schema = requiredMessage
+    ? z.string().trim().min(1, requiredMessage)
+    : z.string();
+
+  return schema
+    .refine(
+      (value) => {
+        const trimmedValue = value.trim();
+        return !trimmedValue || isFiniteNumberText(trimmedValue);
+      },
+      { message: 'Enter a valid number' },
+    )
+    .refine(
+      (value) => {
+        const trimmedValue = value.trim();
+
+        if (!trimmedValue || !isFiniteNumberText(trimmedValue)) {
+          return true;
+        }
+
+        const numberValue = Number(trimmedValue);
+        return numberValue >= min && numberValue <= max;
+      },
+      { message: rangeMessage },
+    );
+}
+
+export const optionalLatitude = coordinateSchema({
+  min: -90,
+  max: 90,
+  rangeMessage: 'Latitude must be between -90 and 90',
+});
+
+export const optionalLongitude = coordinateSchema({
+  min: -180,
+  max: 180,
+  rangeMessage: 'Longitude must be between -180 and 180',
+});
+
+export const requiredLatitude = coordinateSchema({
+  requiredMessage: 'Latitude is required',
+  min: -90,
+  max: 90,
+  rangeMessage: 'Latitude must be between -90 and 90',
+});
+
+export const requiredLongitude = coordinateSchema({
+  requiredMessage: 'Longitude is required',
+  min: -180,
+  max: 180,
+  rangeMessage: 'Longitude must be between -180 and 180',
+});
+
+export const optionalIntegerNumber = z.string().refine(
+  (value) => {
+    const trimmedValue = value.trim();
+
+    if (!trimmedValue) {
+      return true;
+    }
+
+    return isNonNegativeWholeNumberText(trimmedValue);
+  },
+  { message: 'Enter a whole number 0 or above' },
+);
+
+export const requiredIntegerNumber = (message: string) =>
+  z.string().trim().min(1, message).refine(isNonNegativeWholeNumberText, {
+    message: 'Enter a whole number 0 or above',
+  });
+
+export function validateChainageRange(
+  values: ChainageRangeValues,
+  ctx: z.RefinementCtx,
+) {
+  const startValue = values.chainage_start_km.trim();
+  const endValue = values.chainage_end_km.trim();
+
+  if (!startValue || !endValue) {
+    return;
+  }
+
+  const start = Number(startValue);
+  const end = Number(endValue);
+
+  if (
+    !Number.isFinite(start) ||
+    !Number.isFinite(end) ||
+    !isNonNegativeWholeNumberText(startValue) ||
+    !isNonNegativeWholeNumberText(endValue) ||
+    start <= end
+  ) {
+    return;
+  }
+
+  ctx.addIssue({
+    code: z.ZodIssueCode.custom,
+    message: 'Start km cannot be greater than end km',
+    path: ['chainage_start_km'],
+  });
+}