feat: translation (#389)

src/services/transaction.service.ts

@@ -0,0 +1,55 @@
+import { JUMBLE_API_BASE_URL } from '@/constants'
+
+class TransactionService {
+  static instance: TransactionService
+
+  constructor() {
+    if (!TransactionService.instance) {
+      TransactionService.instance = this
+    }
+    return TransactionService.instance
+  }
+
+  async createTransaction(
+    pubkey: string,
+    amount: number
+  ): Promise<{
+    transactionId: string
+    invoiceId: string
+  }> {
+    const url = new URL('/v1/transactions', JUMBLE_API_BASE_URL).toString()
+    const response = await fetch(url, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json'
+      },
+      body: JSON.stringify({
+        pubkey,
+        amount,
+        purpose: 'translation'
+      })
+    })
+    const data = await response.json()
+    if (!response.ok) {
+      throw new Error(data.error ?? 'Failed to create transaction')
+    }
+    return data
+  }
+
+  async checkTransaction(transactionId: string): Promise<{
+    state: 'pending' | 'failed' | 'settled'
+  }> {
+    const url = new URL(`/v1/transactions/${transactionId}/check`, JUMBLE_API_BASE_URL).toString()
+    const response = await fetch(url, {
+      method: 'POST'
+    })
+    const data = await response.json()
+    if (!response.ok) {
+      throw new Error(data.error ?? 'Failed to complete transaction')
+    }
+    return data
+  }
+}
+
+const instance = new TransactionService()
+export default instance