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d18d6478 | 1 | import { Injectable } from '@angular/core' |
cc4bf76c | 2 | import { AsyncValidatorFn, FormArray, FormBuilder, FormControl, FormGroup, ValidatorFn } from '@angular/forms' |
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3 | import { BuildFormArgument, BuildFormDefaultValues } from '../form-validators/form-validator.model' |
4 | import { FormReactiveErrors, FormReactiveValidationMessages } from './form-reactive' | |
d18d6478 C |
5 | |
6 | @Injectable() | |
7 | export class FormValidatorService { | |
8 | ||
9 | constructor ( | |
b4a929ac | 10 | private formBuilder: FormBuilder |
d18d6478 C |
11 | ) {} |
12 | ||
13 | buildForm (obj: BuildFormArgument, defaultValues: BuildFormDefaultValues = {}) { | |
14 | const formErrors: FormReactiveErrors = {} | |
15 | const validationMessages: FormReactiveValidationMessages = {} | |
16 | const group: { [key: string]: any } = {} | |
17 | ||
18 | for (const name of Object.keys(obj)) { | |
19 | formErrors[name] = '' | |
20 | ||
21 | const field = obj[name] | |
3866f1a0 C |
22 | if (this.isRecursiveField(field)) { |
23 | const result = this.buildForm(field as BuildFormArgument, defaultValues[name] as BuildFormDefaultValues) | |
24 | group[name] = result.form | |
25 | formErrors[name] = result.formErrors | |
26 | validationMessages[name] = result.validationMessages | |
27 | ||
28 | continue | |
29 | } | |
30 | ||
9df52d66 | 31 | if (field?.MESSAGES) validationMessages[name] = field.MESSAGES as { [ name: string ]: string } |
d18d6478 | 32 | |
c729caf6 | 33 | const defaultValue = defaultValues[name] ?? '' |
d18d6478 | 34 | |
9df52d66 | 35 | if (field?.VALIDATORS) group[name] = [ defaultValue, field.VALIDATORS ] |
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36 | else group[name] = [ defaultValue ] |
37 | } | |
38 | ||
39 | const form = this.formBuilder.group(group) | |
40 | return { form, formErrors, validationMessages } | |
41 | } | |
42 | ||
3c065fe3 | 43 | updateFormGroup ( |
d18d6478 C |
44 | form: FormGroup, |
45 | formErrors: FormReactiveErrors, | |
46 | validationMessages: FormReactiveValidationMessages, | |
47 | obj: BuildFormArgument, | |
48 | defaultValues: BuildFormDefaultValues = {} | |
49 | ) { | |
50 | for (const name of Object.keys(obj)) { | |
51 | formErrors[name] = '' | |
52 | ||
53 | const field = obj[name] | |
3866f1a0 | 54 | if (this.isRecursiveField(field)) { |
3c065fe3 | 55 | this.updateFormGroup( |
3866f1a0 C |
56 | form[name], |
57 | formErrors[name] as FormReactiveErrors, | |
58 | validationMessages[name] as FormReactiveValidationMessages, | |
59 | obj[name] as BuildFormArgument, | |
60 | defaultValues[name] as BuildFormDefaultValues | |
61 | ) | |
62 | continue | |
63 | } | |
64 | ||
9df52d66 | 65 | if (field?.MESSAGES) validationMessages[name] = field.MESSAGES as { [ name: string ]: string } |
d18d6478 C |
66 | |
67 | const defaultValue = defaultValues[name] || '' | |
68 | ||
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69 | form.addControl( |
70 | name, | |
cc4bf76c | 71 | new FormControl(defaultValue, field?.VALIDATORS as ValidatorFn[], field?.ASYNC_VALIDATORS as AsyncValidatorFn[]) |
3c065fe3 | 72 | ) |
d18d6478 C |
73 | } |
74 | } | |
75 | ||
cc4bf76c C |
76 | updateTreeValidity (group: FormGroup | FormArray): void { |
77 | for (const key of Object.keys(group.controls)) { | |
78 | const abstractControl = group.controls[key] as FormControl | |
79 | ||
80 | if (abstractControl instanceof FormGroup || abstractControl instanceof FormArray) { | |
81 | this.updateTreeValidity(abstractControl) | |
82 | } else { | |
83 | abstractControl.updateValueAndValidity({ emitEvent: false }) | |
84 | } | |
85 | } | |
86 | } | |
87 | ||
3866f1a0 C |
88 | private isRecursiveField (field: any) { |
89 | return field && typeof field === 'object' && !field.MESSAGES && !field.VALIDATORS | |
90 | } | |
d18d6478 | 91 | } |