From 12a83f07ecbdd457e88b252458b038b5ee3109c9 Mon Sep 17 00:00:00 2001
From: allenve <yupeng.fe@qq.com>
Date: Wed, 8 Nov 2023 16:52:28 +0800
Subject: [PATCH 1/2] =?UTF-8?q?feat:=20=E5=85=AC=E5=BC=8F=E6=94=AF?=
 =?UTF-8?q?=E6=8C=81uuid=E7=94=9F=E6=88=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 packages/amis-formula/src/doc.md      | 10 ++++++++
 packages/amis-formula/src/doc.ts      | 17 ++++++++++++
 packages/amis-formula/src/evalutor.ts | 37 +++++++++++++++++++++++++++
 3 files changed, 64 insertions(+)

diff --git a/packages/amis-formula/src/doc.md b/packages/amis-formula/src/doc.md
index 37b95f335..ea51e564c 100644
--- a/packages/amis-formula/src/doc.md
+++ b/packages/amis-formula/src/doc.md
@@ -591,6 +591,16 @@
 
 返回：a.json`。
 
+### UUID
+
+用法：`UUID(8)`
+
+ * `length:number` 生成的UUID字符串长度，默认为32位
+
+返回：`string` 生成的UUID字符串
+
+生成UUID字符串
+
 ## 日期函数
 
 ### DATE
diff --git a/packages/amis-formula/src/doc.ts b/packages/amis-formula/src/doc.ts
index 5291b3029..8ad4d61eb 100644
--- a/packages/amis-formula/src/doc.ts
+++ b/packages/amis-formula/src/doc.ts
@@ -1022,6 +1022,23 @@ export const doc: {
     },
     namespace: '文本函数'
   },
+  {
+    name: 'UUID',
+    description: '生成UUID字符串',
+    example: 'UUID(8)',
+    params: [
+      {
+        type: 'number',
+        name: 'length',
+        description: '生成的UUID字符串长度，默认为32位'
+      }
+    ],
+    returns: {
+      type: 'string',
+      description: '生成的UUID字符串'
+    },
+    namespace: '文本函数'
+  },
   {
     name: 'DATE',
     description:
diff --git a/packages/amis-formula/src/evalutor.ts b/packages/amis-formula/src/evalutor.ts
index 92cdc2f67..e44b570c3 100644
--- a/packages/amis-formula/src/evalutor.ts
+++ b/packages/amis-formula/src/evalutor.ts
@@ -1514,6 +1514,21 @@ export class Evaluator {
     return text.split(/[\\/]/).pop();
   }
 
+  /**
+   * 生成UUID字符串
+   *
+   * @param {number} length - 生成的UUID字符串长度，默认为32位
+   * @example UUID()
+   * @example UUID(8)
+   * @namespace 文本函数
+   *
+   * @returns {string} 生成的UUID字符串
+   */
+  fnUUID(length: number = 32) {
+    const len = Math.min(Math.max(length, 0), 32);
+    return uuidv4().slice(0, len);
+  }
+
   // 日期函数
 
   /**
@@ -2414,3 +2429,25 @@ export function createObject(
 
   return obj;
 }
+
+export function createStr() {
+  return (
+    '00000000000000000' + (Math.random() * 0xffffffffffffffff).toString(16)
+  ).slice(-16);
+}
+
+export function uuidv4() {
+  const a = createStr();
+  const b = createStr();
+  return (
+    a.slice(0, 8) +
+    '-' +
+    a.slice(8, 12) +
+    '-4' +
+    a.slice(13) +
+    '-a' +
+    b.slice(1, 4) +
+    '-' +
+    b.slice(4)
+  );
+}

From 086cfd19659461a8629017fd0dddbaf42fefef57 Mon Sep 17 00:00:00 2001
From: allenve <yupeng.fe@qq.com>
Date: Wed, 8 Nov 2023 17:08:58 +0800
Subject: [PATCH 2/2] =?UTF-8?q?feat:=20=E8=A1=A5=E5=85=85=20uuid=20?=
 =?UTF-8?q?=E5=8D=95=E6=B5=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 packages/amis-formula/__tests__/evalute.test.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/packages/amis-formula/__tests__/evalute.test.ts b/packages/amis-formula/__tests__/evalute.test.ts
index 32d23b1e5..25a7e875f 100644
--- a/packages/amis-formula/__tests__/evalute.test.ts
+++ b/packages/amis-formula/__tests__/evalute.test.ts
@@ -563,6 +563,11 @@ test('evalute:Math', () => {
   expect(evaluate('${POW(2, infinity)}', data)).toBe(data.infinity);
 });
 
+test('evalute:UUID', () => {
+  expect(evaluate('${UUID()}', {}).length).toBe(32);
+  expect(evaluate('${UUID(8)}', {}).length).toBe(8);
+});
+
 test('evalute:namespace', () => {
   localStorage.setItem('a', '1');
   localStorage.setItem('b', '2');