1 files changed, 53 insertions, 0 deletions
diff --git a/lib/approval-line/utils/format.ts b/lib/approval-line/utils/format.ts
new file mode 100644
index 00000000..d74c7d1e
--- /dev/null
+++ b/lib/approval-line/utils/format.ts
@@ -0,0 +1,53 @@
+export interface SimpleApln {
+  seq: string
+  name?: string
+  emailAddress?: string
+  role: string
+}
+
+export function formatApprovalLine(aplns: SimpleApln[]): string {
+  if (!aplns || aplns.length === 0) return '결재자 없음'
+
+  const roleMap: Record<string, string> = {
+    '0': '기안',
+    '1': '결재',
+    '2': '합의',
+    '3': '후결',
+    '4': '병렬합의',
+    '7': '병렬결재',
+    '9': '통보',
+  }
+
+  const groupedBySeq = aplns.reduce<Record<string, SimpleApln[]>>((groups, apln) => {
+    const seq = apln.seq
+    if (!groups[seq]) groups[seq] = []
+    groups[seq].push(apln)
+    return groups
+  }, {})
+
+  const sortedSeqs = Object.keys(groupedBySeq).sort((a, b) => parseInt(a) - parseInt(b))
+
+  return sortedSeqs
+    .map((seq) => {
+      const group = groupedBySeq[seq]
+      const isParallel = group.length > 1 || group.some((apln) => apln.role === '4' || apln.role === '7')
+      if (isParallel) {
+        const parallelMembers = group
+          .map((apln) => {
+            const name = apln.name || apln.emailAddress || '이름없음'
+            const role = roleMap[apln.role] || '알수없음'
+            return `${name}(${role})`
+          })
+          .join(', ')
+        return `[${parallelMembers}]`
+      } else {
+        const apln = group[0]
+        const name = apln.name || apln.emailAddress || '이름없음'
+        const role = roleMap[apln.role] || '알수없음'
+        return `${name}(${role})`
+      }
+    })
+    .join(' → ')
+}
+
+