From 6d72770c65cfa7f14139db250d3cd0c402caf9a4 Mon Sep 17 00:00:00 2001
From: dphuang2 <dylan@konfigthis.com>
Date: Sat, 24 Aug 2024 22:37:07 -0700
Subject: [PATCH] specUsesPatternString

---
 .../src/util/execute-test-command.ts          | 13 +++++--
 .../src/util/spec-uses-pattern-string.ts      | 36 +++++++++++++++++++
 2 files changed, 46 insertions(+), 3 deletions(-)
 create mode 100644 generator/konfig-dash/packages/konfig-cli/src/util/spec-uses-pattern-string.ts

diff --git a/generator/konfig-dash/packages/konfig-cli/src/util/execute-test-command.ts b/generator/konfig-dash/packages/konfig-cli/src/util/execute-test-command.ts
index 23dfd05a61..93f2c1f336 100644
--- a/generator/konfig-dash/packages/konfig-cli/src/util/execute-test-command.ts
+++ b/generator/konfig-dash/packages/konfig-cli/src/util/execute-test-command.ts
@@ -6,6 +6,7 @@ import {
   RequiredEnvironmentVariablesConfig,
   TestConfig,
   KonfigYamlAdditionalGeneratorConfig,
+  parseSpec,
 } from 'konfig-lib'
 import waiton from 'wait-on'
 import kill from 'konfig-kill-port'
@@ -13,6 +14,8 @@ import path from 'path'
 import { parseKonfigYaml } from './parse-konfig-yaml'
 import { parseFilterFlag } from './parseFilterFlag'
 import { findNodeModulesBinPath } from './find-node-modules-bin-path'
+import * as fs from 'fs'
+import { specUsesPatternString } from './spec-uses-pattern-string'
 
 const validateRequiredEnvironmentVariables = (
   config: RequiredEnvironmentVariablesConfig
@@ -47,6 +50,10 @@ export async function executeTestCommand({
     configDir,
   })
 
+  const specPath = common.specPath
+  const specRawString = fs.readFileSync(specPath, 'utf-8')
+  const usesPatternString = specUsesPatternString(specRawString)
+
   // kill any existing process on mock server port
   if (!noMockServer) {
     CliUx.ux.log(`Killing any process using port ${mockServerPort}`)
@@ -66,9 +73,9 @@ export async function executeTestCommand({
       cwd: cliRoot,
     })
     execa.command(
-      `${pathToPrism} mock ${useDynamicResponseConfiguration ? '-d' : ''} ${
-        common.specPath
-      } --port ${mockServerPort}`,
+      `${pathToPrism} mock ${
+        useDynamicResponseConfiguration || usesPatternString ? '-d' : ''
+      } ${common.specPath} --port ${mockServerPort}`,
       {
         cwd: configDir,
         stdio: 'inherit',
diff --git a/generator/konfig-dash/packages/konfig-cli/src/util/spec-uses-pattern-string.ts b/generator/konfig-dash/packages/konfig-cli/src/util/spec-uses-pattern-string.ts
new file mode 100644
index 0000000000..0b782e1f22
--- /dev/null
+++ b/generator/konfig-dash/packages/konfig-cli/src/util/spec-uses-pattern-string.ts
@@ -0,0 +1,36 @@
+import { OpenAPIV3_XDocument, recurseObject } from 'konfig-lib'
+import * as yaml from 'js-yaml'
+
+export function specUsesPatternString(specString: string): boolean {
+  let spec: OpenAPIV3_XDocument
+
+  try {
+    // Try parsing as JSON first
+    spec = JSON.parse(specString)
+  } catch {
+    // If JSON parsing fails, try parsing as YAML
+    try {
+      spec = yaml.load(specString) as OpenAPIV3_XDocument
+    } catch {
+      throw new Error('Invalid spec format. Must be valid JSON or YAML.')
+    }
+  }
+
+  let hasPatternString = false
+
+  recurseObject(spec, ({ value }) => {
+    if (
+      typeof value === 'object' &&
+      value !== null &&
+      'type' in value &&
+      value.type === 'string' &&
+      'pattern' in value &&
+      typeof value.pattern === 'string' &&
+      value.pattern.length > 0
+    ) {
+      hasPatternString = true
+    }
+  })
+
+  return hasPatternString
+}