6 files changed, 82 insertions, 0 deletions

diff --git a/client/src/app/shared/forms/form-reactive.ts b/client/src/app/shared/forms/form-reactive.ts
new file mode 100644
index 000000000..1e8a69771
--- /dev/null
+++ b/client/src/app/shared/forms/form-reactive.ts
@@ -0,0 +1,24 @@
+import { FormGroup } from '@angular/forms';
+
+export abstract class FormReactive {
+  abstract form: FormGroup;
+  abstract formErrors: Object;
+  abstract validationMessages: Object;
+
+  abstract buildForm(): void;
+
+  protected onValueChanged(data?: any) {
+    for (const field in this.formErrors) {
+      // clear previous error message (if any)
+      this.formErrors[field] = '';
+      const control = this.form.get(field);
+
+      if (control && control.dirty && !control.valid) {
+        const messages = this.validationMessages[field];
+        for (const key in control.errors) {
+          this.formErrors[field] += messages[key] + ' ';
+        }
+      }
+    }
+  }
+}
diff --git a/client/src/app/shared/forms/form-validators/index.ts b/client/src/app/shared/forms/form-validators/index.ts
new file mode 100644
index 000000000..1d2ae6f68
--- /dev/null
+++ b/client/src/app/shared/forms/form-validators/index.ts
@@ -0,0 +1,3 @@
+export * from './url.validator';
+export * from './user';
+export * from './video';
diff --git a/client/src/app/shared/forms/form-validators/url.validator.ts b/client/src/app/shared/forms/form-validators/url.validator.ts
new file mode 100644
index 000000000..67163b4e9
--- /dev/null
+++ b/client/src/app/shared/forms/form-validators/url.validator.ts
@@ -0,0 +1,11 @@
+import { FormControl } from '@angular/forms';
+
+export function validateUrl(c: FormControl) {
+  let URL_REGEXP = new RegExp('^https?://(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)$');
+
+  return URL_REGEXP.test(c.value) ? null : {
+    validateUrl: {
+      valid: false
+    }
+  };
+}
diff --git a/client/src/app/shared/forms/form-validators/user.ts b/client/src/app/shared/forms/form-validators/user.ts
new file mode 100644
index 000000000..5b11ff265
--- /dev/null
+++ b/client/src/app/shared/forms/form-validators/user.ts
@@ -0,0 +1,17 @@
+import { Validators } from '@angular/forms';
+
+export const USER_USERNAME = {
+  VALIDATORS: [ Validators.required, Validators.minLength(3), Validators.maxLength(20) ],
+  MESSAGES: {
+    'required': 'Username is required.',
+    'minlength': 'Username must be at least 3 characters long.',
+    'maxlength': 'Username cannot be more than 20 characters long.'
+  }
+};
+export const USER_PASSWORD = {
+  VALIDATORS: [ Validators.required, Validators.minLength(6) ],
+  MESSAGES: {
+    'required': 'Password is required.',
+    'minlength': 'Password must be at least 6 characters long.',
+  }
+};
diff --git a/client/src/app/shared/forms/form-validators/video.ts b/client/src/app/shared/forms/form-validators/video.ts
new file mode 100644
index 000000000..3766d4018
--- /dev/null
+++ b/client/src/app/shared/forms/form-validators/video.ts
@@ -0,0 +1,25 @@
+import { Validators } from '@angular/forms';
+
+export const VIDEO_NAME = {
+  VALIDATORS: [ Validators.required, Validators.minLength(3), Validators.maxLength(50) ],
+  MESSAGES: {
+    'required': 'Video name is required.',
+    'minlength': 'Video name must be at least 3 characters long.',
+    'maxlength': 'Video name cannot be more than 50 characters long.'
+  }
+};
+export const VIDEO_DESCRIPTION = {
+  VALIDATORS: [ Validators.required, Validators.minLength(3), Validators.maxLength(250) ],
+  MESSAGES: {
+    'required': 'Video description is required.',
+    'minlength': 'Video description must be at least 3 characters long.',
+    'maxlength': 'Video description cannot be more than 250 characters long.'
+  }
+};
+
+export const VIDEO_TAGS = {
+  VALIDATORS: [ Validators.pattern('^[a-zA-Z0-9]{2,10}$') ],
+  MESSAGES: {
+    'pattern': 'A tag should be between 2 and 10 alphanumeric characters long.'
+  }
+};
diff --git a/client/src/app/shared/forms/index.ts b/client/src/app/shared/forms/index.ts
new file mode 100644
index 000000000..588ebb4be
--- /dev/null
+++ b/client/src/app/shared/forms/index.ts
@@ -0,0 +1,2 @@
+export * from './form-validators';
+export * from './form-reactive';