From cb9c867b22fe715b5642311bfd070546c133ac7b Mon Sep 17 00:00:00 2001
From: ymc9 <104139426+ymc9@users.noreply.github.com>
Date: Sun, 9 Jul 2023 11:20:19 +0800
Subject: [PATCH 1/2] fix: add "interactiveTransactions" preview features for
 lower version of Prisma

---
 .../src/plugins/prisma/schema-generator.ts    | 30 ++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/packages/schema/src/plugins/prisma/schema-generator.ts b/packages/schema/src/plugins/prisma/schema-generator.ts
index 7130b0a7b..af0b49f0b 100644
--- a/packages/schema/src/plugins/prisma/schema-generator.ts
+++ b/packages/schema/src/plugins/prisma/schema-generator.ts
@@ -36,6 +36,7 @@ import {
 import fs from 'fs';
 import { writeFile } from 'fs/promises';
 import path from 'path';
+import semver from 'semver';
 import stripColor from 'strip-color';
 import { name } from '.';
 import { getStringLiteral } from '../../language-server/validator/utils';
@@ -236,14 +237,41 @@ export default class PrismaSchemaGenerator {
         }
     }
 
+    private getPrismaVersion() {
+        try {
+            // eslint-disable-next-line @typescript-eslint/no-var-requires
+            return require('@prisma/client/package.json').version;
+        } catch {
+            return undefined;
+        }
+    }
+
     private generateGenerator(prisma: PrismaModel, decl: GeneratorDecl) {
-        prisma.addGenerator(
+        const generator = prisma.addGenerator(
             decl.name,
             decl.fields.map((f) => {
                 const value = isArrayExpr(f.value) ? getLiteralArray(f.value) : getLiteral(f.value);
                 return { name: f.name, value };
             })
         );
+
+        // deal with configuring PrismaClient preview features
+        const provider = generator.fields.find((f) => f.name === 'provider');
+        if (provider?.value === 'prisma-client-js') {
+            const prismaVersion = this.getPrismaVersion();
+            if (prismaVersion && semver.lt(prismaVersion, '4.7.0')) {
+                // insert interactiveTransactions preview feature
+                let previewFeatures = generator.fields.find((f) => f.name === 'previewFeatures');
+                if (!previewFeatures) {
+                    previewFeatures = { name: 'previewFeatures', value: [] };
+                    generator.fields.push(previewFeatures);
+                }
+                if (!Array.isArray(previewFeatures.value)) {
+                    throw new PluginError(name, 'option "previewFeatures" must be an array');
+                }
+                previewFeatures.value.push('interactiveTransactions');
+            }
+        }
     }
 
     private generateModel(prisma: PrismaModel, decl: DataModel, config?: Record<string, string>) {

From 98b4c5976b3daf80702f816c908190a558b0e9e9 Mon Sep 17 00:00:00 2001
From: ymc9 <104139426+ymc9@users.noreply.github.com>
Date: Sun, 9 Jul 2023 11:22:12 +0800
Subject: [PATCH 2/2] update

---
 packages/schema/src/plugins/prisma/schema-generator.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/schema/src/plugins/prisma/schema-generator.ts b/packages/schema/src/plugins/prisma/schema-generator.ts
index af0b49f0b..81c01f874 100644
--- a/packages/schema/src/plugins/prisma/schema-generator.ts
+++ b/packages/schema/src/plugins/prisma/schema-generator.ts
@@ -269,7 +269,9 @@ export default class PrismaSchemaGenerator {
                 if (!Array.isArray(previewFeatures.value)) {
                     throw new PluginError(name, 'option "previewFeatures" must be an array');
                 }
-                previewFeatures.value.push('interactiveTransactions');
+                if (!previewFeatures.value.includes('interactiveTransactions')) {
+                    previewFeatures.value.push('interactiveTransactions');
+                }
             }
         }
     }