From 10d5b226e2d8caf43e75bfc0186aaec654c3f6b9 Mon Sep 17 00:00:00 2001
From: oriol <oriol@mobilejazz.com>
Date: Wed, 22 Mar 2023 19:21:03 +0100
Subject: [PATCH 1/2] angular pattern validators

---
 .../src/form-validation/form-validators.ts    | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 packages/angular/src/form-validation/form-validators.ts

diff --git a/packages/angular/src/form-validation/form-validators.ts b/packages/angular/src/form-validation/form-validators.ts
new file mode 100644
index 0000000..d0728b2
--- /dev/null
+++ b/packages/angular/src/form-validation/form-validators.ts
@@ -0,0 +1,45 @@
+import { AbstractControl, ValidationErrors, ValidatorFn } from '@angular/forms';
+
+export class FormValidators {
+    private static readonly ERROR_BODY = { valid: false };
+
+    /**
+     * Substitution of the native `Validations.pattern` that allows
+     * an id as an input so multiple patterns can be used and identified.
+     * It also allows a string pattern or a RegExp.
+     */
+    private static pattern(pattern: RegExp | string, id = 'pattern'): ValidatorFn {
+        return (control: AbstractControl): ValidationErrors | null => {
+            return FormValidators.isPatternFound(control, pattern)
+                ? null
+                : {
+                      [id]: FormValidators.ERROR_BODY,
+                  };
+        };
+    }
+
+    /**
+     * Unlike "pattern" validator, "errorPattern" uses the pattern
+     * to identify the errors in the FormControl value.
+     */
+    private static errorPattern(pattern: RegExp | string, id = 'errorPattern'): ValidatorFn {
+        return (control: AbstractControl): ValidationErrors | null => {
+            return FormValidators.isPatternFound(control, pattern)
+                ? {
+                      [id]: FormValidators.ERROR_BODY,
+                  }
+                : null;
+        };
+    }
+
+    private static isPatternFound(control: AbstractControl, pattern: RegExp | string): boolean {
+        const value = control.value;
+        if (!value) {
+            return false;
+        }
+
+        const regex = typeof pattern === 'string' ? new RegExp(pattern) : pattern;
+
+        return regex.test(value);
+    }
+}

From 0945c39e7b30b60a41710581a08d95d2433a2cde Mon Sep 17 00:00:00 2001
From: oriol <oriol@mobilejazz.com>
Date: Sun, 2 Apr 2023 00:21:22 +0200
Subject: [PATCH 2/2] exporting validators correctly

---
 packages/angular/src/form-validation/form-validators.ts | 4 ++--
 packages/angular/src/form-validation/index.ts           | 1 +
 packages/angular/src/index.ts                           | 1 +
 3 files changed, 4 insertions(+), 2 deletions(-)
 create mode 100644 packages/angular/src/form-validation/index.ts

diff --git a/packages/angular/src/form-validation/form-validators.ts b/packages/angular/src/form-validation/form-validators.ts
index d0728b2..641c43e 100644
--- a/packages/angular/src/form-validation/form-validators.ts
+++ b/packages/angular/src/form-validation/form-validators.ts
@@ -8,7 +8,7 @@ export class FormValidators {
      * an id as an input so multiple patterns can be used and identified.
      * It also allows a string pattern or a RegExp.
      */
-    private static pattern(pattern: RegExp | string, id = 'pattern'): ValidatorFn {
+    public static pattern(pattern: RegExp | string, id = 'pattern'): ValidatorFn {
         return (control: AbstractControl): ValidationErrors | null => {
             return FormValidators.isPatternFound(control, pattern)
                 ? null
@@ -22,7 +22,7 @@ export class FormValidators {
      * Unlike "pattern" validator, "errorPattern" uses the pattern
      * to identify the errors in the FormControl value.
      */
-    private static errorPattern(pattern: RegExp | string, id = 'errorPattern'): ValidatorFn {
+    public static errorPattern(pattern: RegExp | string, id = 'errorPattern'): ValidatorFn {
         return (control: AbstractControl): ValidationErrors | null => {
             return FormValidators.isPatternFound(control, pattern)
                 ? {
diff --git a/packages/angular/src/form-validation/index.ts b/packages/angular/src/form-validation/index.ts
new file mode 100644
index 0000000..2e9235a
--- /dev/null
+++ b/packages/angular/src/form-validation/index.ts
@@ -0,0 +1 @@
+export * from './form-validators';
diff --git a/packages/angular/src/index.ts b/packages/angular/src/index.ts
index c63ecc3..a9fadbd 100644
--- a/packages/angular/src/index.ts
+++ b/packages/angular/src/index.ts
@@ -1,2 +1,3 @@
 export * from './data';
+export * from './form-validation';
 export * from './angular-providers.builder';