Add simulation support to ticket check-in API and providers

libpretixsync/src/main/java/eu/pretix/libpretixsync/api/PretixApi.kt

@@ -119,6 +119,7 @@ open class PretixApi(url: String, key: String, orgaSlug: String, version: Int, h
         use_order_locale: Boolean = false,
         exchange_medium_type: String? = null,
         exchange_medium_identifier: String? = null,
+        simulate: Boolean = false,
     ): ApiResponse {
         val body = JSONObject()
         if (datetime != null) {
@@ -158,6 +159,7 @@ open class PretixApi(url: String, key: String, orgaSlug: String, version: Int, h
         body.put("lists", jlists)
         if (exchange_medium_type != null) body.put("exchange_medium_type", exchange_medium_type)
         if (exchange_medium_identifier != null) body.put("exchange_medium_identifier", exchange_medium_identifier)
+        if (simulate) body.put("simulate", true)
         var pd = "?expand=answers.question"
         if (pdf_data) {
             pd += "&pdf_data=true"

libpretixsync/src/main/java/eu/pretix/libpretixsync/api/ProxyApi.kt

@@ -29,6 +29,7 @@ data class MultiCheckInput(
     val nonce: String?,
     val exchange_medium_type: String?,
     val exchange_medium_identifier: String?,
+    val simulate: Boolean = false,
 )
 
 data class AnnulInput(

libpretixsync/src/main/java/eu/pretix/libpretixsync/check/AsyncCheckProvider.kt

@@ -679,12 +679,20 @@ class AsyncCheckProvider(private val config: ConfigStore, private val db: SyncDa
         useOrderLocale: Boolean,
         exchange_medium_type: String?,
         exchange_medium_identifier: String?,
+        simulate: Boolean
     ): TicketCheckProvider.CheckResult {
         val nonce = nonce ?: NonceGenerator.nextNonce()
         val ticketid_cleaned = cleanInput(ticketid, source_type)
 
         sentry.addBreadcrumb("provider.check", "offline check started")
 
+        if (simulate) {
+            return TicketCheckProvider.CheckResult(
+                TicketCheckProvider.CheckResult.Type.ERROR,
+                "Simulate is not supported in offline mode",
+            )
+        }
+
         if (exchange_medium_type != null || exchange_medium_identifier != null) {
             return TicketCheckProvider.CheckResult(
                 TicketCheckProvider.CheckResult.Type.ERROR,

libpretixsync/src/main/java/eu/pretix/libpretixsync/check/OnlineCheckProvider.kt

@@ -53,6 +53,7 @@ class OnlineCheckProvider(
         useOrderLocale: Boolean,
         exchange_medium_type: String?,
         exchange_medium_identifier: String?,
+        simulate: Boolean,
     ): TicketCheckProvider.CheckResult {
         val ticketid_cleaned = cleanInput(ticketid, source_type)
         val nonce_cleaned = nonce ?: NonceGenerator.nextNonce()
@@ -79,9 +80,11 @@ class OnlineCheckProvider(
                     use_order_locale = useOrderLocale,
                     exchange_medium_type = exchange_medium_type,
                     exchange_medium_identifier = exchange_medium_identifier,
+                    simulate = simulate,
                 )
             } else {
                 if (eventsAndCheckinLists.size != 1) throw CheckException("Multi-event scan not supported by server.")
+                if (simulate) throw CheckException("Simulate not supported by this server version.")
                 api.redeem(
                     eventsAndCheckinLists.keys.first(),
                     ticketid_cleaned,

libpretixsync/src/main/java/eu/pretix/libpretixsync/check/ProxyCheckProvider.kt

@@ -114,6 +114,7 @@ class ProxyCheckProvider(private val config: ConfigStore, httpClientFactory: Htt
         useOrderLocale: Boolean,
         exchange_medium_type: String?,
         exchange_medium_identifier: String?,
+        simulate: Boolean
     ): TicketCheckProvider.CheckResult {
         val answersInput = answers?.map {
             val questionModel = it.question as Question // TODO: Can we avoid the cast?
@@ -137,6 +138,7 @@ class ProxyCheckProvider(private val config: ConfigStore, httpClientFactory: Htt
             nonce = nonce,
             exchange_medium_type = exchange_medium_type,
             exchange_medium_identifier = exchange_medium_identifier,
+            simulate = simulate,
         )
 
         return try {

libpretixsync/src/main/java/eu/pretix/libpretixsync/check/TicketCheckProvider.kt

@@ -186,6 +186,7 @@ interface TicketCheckProvider {
         useOrderLocale: Boolean = false,
         exchange_medium_type: String? = null,
         exchange_medium_identifier: String? = null,
+        simulate: Boolean = false
     ): CheckResult
 
     fun check(eventsAndCheckinLists: Map<String, Long>, ticketid: String, source_type: String = "barcode"): CheckResult

libpretixsync/src/testFixtures/java/eu/pretix/pretixscan/scanproxy/tests/test/FakePretixApi.kt

@@ -46,6 +46,7 @@ class FakePretixApi(var orgaSlug: String = "demo") : PretixApi("http://1.1.1.1/"
         use_order_locale: Boolean,
         exchange_medium_type: String?,
         exchange_medium_identifier: String?,
+        simulate: Boolean,
     ): ApiResponse {
         redeemRequestSecret = secret
         redeemRequestDatetime = datetime