# DateValidationServiceService

**Kind:** Class

**Source:** `Pams/Web/Pams.WebApp/Client/app/services/sales/date-validation-service.service.ts` (line 15)

**Part of:** [Pams](subsystem-pams)

`DateValidationServiceService` coordinates date validation and mandatory-field checks in the sales client. It triggers date validation, registers validators, and applies mandatory rules for general fields, entities, and types.

## Methods

| Method | Signature | Returns |
|---|---|---|
| `FireDateValidation` | `FireDateValidation(data: number)` | `void` |
| `AddValidator` | `AddValidator(type: number, Validator: validator)` | `void` |
| `validateMandatory` | `validateMandatory(type: number)` | `void` |
| `validateMandatoryByEntity` | `validateMandatoryByEntity(type: number, inquiry: Inquiry)` | `void` |
| `validateMandatorybyType` | `validateMandatorybyType(type: number)` | `void` |

## Properties

| Property | Type |
|---|---|
| `validation$` | `any` |

## Where it refuses work

- `DateValidationServiceService` stops the work with an early return when `type < 10`.

## Diagram

```mermaid
graph LR
    SalesForm[Sales UI] --> Service[DateValidationServiceService]
    Service --> AddValidator[AddValidator]
    Service --> FireDateValidation[FireDateValidation]
    Service --> Mandatory[validateMandatory]
    Mandatory --> ByEntity[validateMandatoryByEntity]
    Mandatory --> ByType[validateMandatorybyType]
```

## Usage

```ts
import { Component, inject } from '@angular/core';
import { DateValidationServiceService } from '../services/sales/date-validation-service.service';

@Component({
  selector: 'app-sales-entry',
  template: `<button (click)="validateDates()">Validate dates</button>`,
})
export class SalesEntryComponent {
  private readonly dateValidationService = inject(DateValidationServiceService);

  validateDates(): void {
    this.dateValidationService.FireDateValidation();
  }
}
```

## AI Coding Instructions

- Call `FireDateValidation()` when sales form date values change or before submitting date-dependent data.
- Register validation behavior through `AddValidator()` rather than duplicating date checks in components.
- Keep mandatory validation rules aligned with `validateMandatoryByEntity()` and `validateMandatorybyType()` scopes.
- Preserve the existing method names, including their casing, when adding callers or tests.

## Used by

1 reference from 1 file. Each is a place in this repository where the symbol is actually used — go read one rather than trusting an example.

### Imported by (1)

- `SharedServicesModule` — `Pams/Web/Pams.WebApp/Client/app/services/shared-service.module.ts`:1