feat: nwc

app/src/main/java/com/bitcointxoko/gudariwallet/api/LNbitsApi.kt

@@ -1,9 +1,11 @@
 package com.bitcointxoko.gudariwallet.api
 
 import retrofit2.http.Body
+import retrofit2.http.DELETE
 import retrofit2.http.GET
 import retrofit2.http.Header
 import retrofit2.http.POST
+import retrofit2.http.PUT
 import retrofit2.http.Path
 import retrofit2.http.Query
 import retrofit2.http.Url
@@ -144,4 +146,61 @@ interface LNbitsApi {
      */
     @GET("api/v1/currencies")
     suspend fun getSupportedCurrencies(): List<String>
+
+    // ── NWC Provider ──────────────────────────────────────────────────────────
+
+    @GET("nwcprovider/api/v1/permissions")
+    suspend fun getNwcPermissions(
+        @Header("X-Api-Key") apiKey: String
+    ): Map<String, Any>
+
+    @GET("nwcprovider/api/v1/nwc")
+    suspend fun getNwcKeys(
+        @Header("X-Api-Key") adminKey: String,
+        @Query("include_expired") includeExpired: Boolean = false
+    ): List<NwcGetResponse>
+
+    @GET("nwcprovider/api/v1/nwc/{pubkey}")
+    suspend fun getNwcKey(
+        @Header("X-Api-Key") apiKey: String,
+        @Path("pubkey") pubkey: String,
+        @Query("include_expired") includeExpired: Boolean = false,
+        @Query("refresh_last_used") refreshLastUsed: Boolean = false
+    ): NwcGetResponse
+
+    @PUT("nwcprovider/api/v1/nwc/{pubkey}")
+    suspend fun registerNwcKey(
+        @Header("X-Api-Key") adminKey: String,
+        @Path("pubkey") pubkey: String,
+        @Body request: NwcRegistrationRequest
+    ): NwcGetResponse
+
+    @DELETE("nwcprovider/api/v1/nwc/{pubkey}")
+    suspend fun deleteNwcKey(
+        @Header("X-Api-Key") adminKey: String,
+        @Path("pubkey") pubkey: String
+    )
+
+    @GET("nwcprovider/api/v1/pairing/{secret}")
+    suspend fun getNwcPairingUrl(
+        @Header("X-Api-Key") apiKey: String,
+        @Path("secret") secret: String
+    ): String
+
+    @GET("nwcprovider/api/v1/config")
+    suspend fun getNwcConfig(
+        @Header("X-Api-Key") adminKey: String
+    ): Map<String, Any>
+
+    @GET("nwcprovider/api/v1/config/{key}")
+    suspend fun getNwcConfigValue(
+        @Header("X-Api-Key") adminKey: String,
+        @Path("key") key: String
+    ): Map<String, Any>
+
+    @POST("nwcprovider/api/v1/config")
+    suspend fun setNwcConfig(
+        @Header("X-Api-Key") adminKey: String,
+        @Body config: Map<String, Any>
+    ): Map<String, Any>
 }

app/src/main/java/com/bitcointxoko/gudariwallet/api/Models.kt

@@ -322,3 +322,43 @@ data class PaginatedPaymentsResponse(
     @SerializedName("data")  val data:  List<PaymentRecord>,
     @SerializedName("total") val total: Int
 )
+
+// ── NWC Provider models ───────────────────────────────────────────────────────
+
+data class NwcKey(
+    val pubkey: String,
+    val wallet: String,
+    val description: String,
+    val expires_at: Long,
+    val permissions: String,       // comma-separated permission names
+    val created_at: Long,
+    val last_used: Long
+)
+
+data class NwcBudget(
+    val id: Int,
+    val pubkey: String,
+    val budget_msats: Long,
+    val refresh_window: Int,       // seconds
+    val created_at: Long,
+    val used_budget_msats: Long = 0
+)
+
+/** Response for GET /nwc and GET /nwc/{pubkey} */
+data class NwcGetResponse(
+    val data: NwcKey,
+    val budgets: List<NwcBudget>
+)
+
+data class NwcNewBudget(
+    val budget_msats: Long,
+    val refresh_window: Int        // seconds
+)
+
+/** Request body for PUT /nwc/{pubkey} */
+data class NwcRegistrationRequest(
+    val permissions: List<String>,
+    val description: String,
+    val expires_at: Long,          // unix timestamp; 0 = no expiry
+    val budgets: List<NwcNewBudget> = emptyList()
+)