fix(encryption): alert on decryption error (#711)

* update(c-alert): Add variant 'error'

* fix(encryption): Alert decryption error (#652)

* feat(c-alert): added title

* refactor(composable): mutualized computedCatch

---------

Co-authored-by: code2933 <code2933@outlook.com>

5 files changed, 58 insertions, 6 deletions

diff --git a/src/composable/computed/catchedComputed.ts b/src/composable/computed/catchedComputed.ts
new file mode 100644
index 0000000..fd00a12
--- /dev/null
+++ b/src/composable/computed/catchedComputed.ts
@@ -0,0 +1,22 @@
+import { type Ref, ref, watchEffect } from 'vue';
+
+export { computedCatch };
+
+function computedCatch<T, D>(getter: () => T, { defaultValue }: { defaultValue: D; defaultErrorMessage?: string }): [Ref<T | D>, Ref<string | undefined>];
+function computedCatch<T, D>(getter: () => T, { defaultValue, defaultErrorMessage = 'Unknown error' }: { defaultValue?: D; defaultErrorMessage?: string } = {}) {
+  const error = ref<string | undefined>();
+  const value = ref<T | D | undefined>();
+
+  watchEffect(() => {
+    try {
+      error.value = undefined;
+      value.value = getter();
+    }
+    catch (err) {
+      error.value = err instanceof Error ? err.message : err?.toString() ?? defaultErrorMessage;
+      value.value = defaultValue;
+    }
+  });
+
+  return [value, error] as const;
+}
diff --git a/src/tools/encryption/encryption.vue b/src/tools/encryption/encryption.vue
index 4a348f8..2ad47b5 100644
--- a/src/tools/encryption/encryption.vue
+++ b/src/tools/encryption/encryption.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { AES, RC4, Rabbit, TripleDES, enc } from 'crypto-js';
+import { computedCatch } from '@/composable/computed/catchedComputed';
 
 const algos = { AES, TripleDES, Rabbit, RC4 };
 
@@ -11,9 +12,10 @@ const cypherOutput = computed(() => algos[cypherAlgo.value].encrypt(cypherInput.
 const decryptInput = ref('U2FsdGVkX1/EC3+6P5dbbkZ3e1kQ5o2yzuU0NHTjmrKnLBEwreV489Kr0DIB+uBs');
 const decryptAlgo = ref<keyof typeof algos>('AES');
 const decryptSecret = ref('my secret key');
-const decryptOutput = computed(() =>
-  algos[decryptAlgo.value].decrypt(decryptInput.value, decryptSecret.value).toString(enc.Utf8),
-);
+const [decryptOutput, decryptError] = computedCatch(() => algos[decryptAlgo.value].decrypt(decryptInput.value, decryptSecret.value).toString(enc.Utf8), {
+  defaultValue: '',
+  defaultErrorMessage: 'Unable to decrypt your text',
+});
 </script>
 
 <template>
@@ -63,7 +65,11 @@ const decryptOutput = computed(() =>
         />
       </div>
     </div>
+    <c-alert v-if="decryptError" type="error" mt-12 title="Error while decrypting">
+      {{ decryptError }}
+    </c-alert>
     <c-input-text
+      v-else
       label="Your decrypted text:"
       :value="decryptOutput"
       placeholder="Your string hash"
diff --git a/src/ui/c-alert/c-alert.demo.vue b/src/ui/c-alert/c-alert.demo.vue
index 546c785..69f3ea4 100644
--- a/src/ui/c-alert/c-alert.demo.vue
+++ b/src/ui/c-alert/c-alert.demo.vue
@@ -1,11 +1,19 @@
 <script lang="ts" setup>
-const variants = ['warning'] as const;
+const variants = ['warning', 'error'] as const;
 </script>
 
 <template>
+  <h2>Basic</h2>
   <c-alert v-for="variant in variants" :key="variant" :type="variant" mb-4>
     Lorem ipsum dolor sit amet consectetur adipisicing elit. Magni reprehenderit itaque enim? Suscipit magni optio velit
     quia, eveniet repellat pariatur quaerat laudantium dignissimos natus, beatae deleniti adipisci, atque necessitatibus
     odio!
   </c-alert>
+
+  <h2>With title</h2>
+  <c-alert v-for="variant in variants" :key="variant" :type="variant" title="This is the title" mb-4>
+    Lorem ipsum dolor sit amet consectetur adipisicing elit. Magni reprehenderit itaque enim? Suscipit magni optio velit
+    quia, eveniet repellat pariatur quaerat laudantium dignissimos natus, beatae deleniti adipisci, atque necessitatibus
+    odio!
+  </c-alert>
 </template>
diff --git a/src/ui/c-alert/c-alert.theme.ts b/src/ui/c-alert/c-alert.theme.ts
index 36d5d34..2176a10 100644
--- a/src/ui/c-alert/c-alert.theme.ts
+++ b/src/ui/c-alert/c-alert.theme.ts
@@ -3,6 +3,7 @@ import { defineThemes } from '../theme/theme.models';
 import { appThemes } from '../theme/themes';
 
 import WarningIcon from '~icons/mdi/alert-circle-outline';
+import ErrorIcon from '~icons/mdi/close-circle-outline';
 
 export const { useTheme } = defineThemes({
   dark: {
@@ -12,6 +13,12 @@ export const { useTheme } = defineThemes({
       textColor: appThemes.dark.warning.color,
       icon: WarningIcon,
     },
+    error: {
+      backgroundColor: appThemes.dark.error.colorFaded,
+      borderColor: appThemes.dark.error.color,
+      textColor: appThemes.dark.error.color,
+      icon: ErrorIcon,
+    },
   },
   light: {
     warning: {
@@ -20,5 +27,11 @@ export const { useTheme } = defineThemes({
       textColor: darken(appThemes.light.warning.color, 40),
       icon: WarningIcon,
     },
+    error: {
+      backgroundColor: appThemes.light.error.colorFaded,
+      borderColor: appThemes.light.error.color,
+      textColor: darken(appThemes.light.error.color, 40),
+      icon: ErrorIcon,
+    },
   },
 });
diff --git a/src/ui/c-alert/c-alert.vue b/src/ui/c-alert/c-alert.vue
index 607acb9..8a3b55e 100644
--- a/src/ui/c-alert/c-alert.vue
+++ b/src/ui/c-alert/c-alert.vue
@@ -1,8 +1,8 @@
 <script lang="ts" setup>
 import { useTheme } from './c-alert.theme';
 
-const props = withDefaults(defineProps<{ type?: 'warning' }>(), { type: 'warning' });
-const { type } = toRefs(props);
+const props = withDefaults(defineProps<{ type?: 'warning'; title?: string }>(), { type: 'warning', title: undefined });
+const { type, title } = toRefs(props);
 
 const theme = useTheme();
 const variantTheme = computed(() => theme.value[type.value]);
@@ -17,6 +17,9 @@ const variantTheme = computed(() => theme.value[type.value]);
     </div>
 
     <div class="c-alert--content">
+      <div v-if="title" class="c-alert--title" text-15px fw-600>
+        {{ title }}
+      </div>
       <slot />
     </div>
   </div>