[libeufin] 02/02: First steps in payment preparation.

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marcello pushed a commit to branch master
in repository libeufin.

commit 9d120e7b77960452a2ada3249bafd5891a8197fc
Author: Marcello Stanisci <address@hidden>
AuthorDate: Thu Feb 13 14:03:16 2020 +0100

    First steps in payment preparation.
---
 nexus/src/main/kotlin/tech/libeufin/nexus/Db.kt   |  2 +-
 nexus/src/main/kotlin/tech/libeufin/nexus/Main.kt | 29 ++++++++++++++++++++++-
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/nexus/src/main/kotlin/tech/libeufin/nexus/Db.kt 
b/nexus/src/main/kotlin/tech/libeufin/nexus/Db.kt
index e2591d2..e49f8ef 100644
--- a/nexus/src/main/kotlin/tech/libeufin/nexus/Db.kt
+++ b/nexus/src/main/kotlin/tech/libeufin/nexus/Db.kt
@@ -58,7 +58,7 @@ const val ID_MAX_LENGTH = 50
 
 object EbicsAccountsInfoTable : IntIdTable() {
     val accountId = text("accountId")
-    val subscriber = reference("subscriberId", EbicsSubscribersTable)
+    val subscriber = reference("subscriber", EbicsSubscribersTable)
     val accountHolder = text("accountHolder").nullable()
     val iban = text("iban")
     val bankCode = text("bankCode")
diff --git a/nexus/src/main/kotlin/tech/libeufin/nexus/Main.kt 
b/nexus/src/main/kotlin/tech/libeufin/nexus/Main.kt
index 7f1dcc1..b795584 100644
--- a/nexus/src/main/kotlin/tech/libeufin/nexus/Main.kt
+++ b/nexus/src/main/kotlin/tech/libeufin/nexus/Main.kt
@@ -86,6 +86,7 @@ fun testData() {
 data class NotAnIdError(val statusCode: HttpStatusCode) : Exception("String ID 
not convertible in number")
 data class BankKeyMissing(val statusCode: HttpStatusCode) : 
Exception("Impossible operation: bank keys are missing")
 data class SubscriberNotFoundError(val statusCode: HttpStatusCode) : 
Exception("Subscriber not found in database")
+data class BankAccountNotFoundError(val statusCode: HttpStatusCode) : 
Exception("Subscriber doesn't have bank account claimed by given 'acctid'")
 data class UnreachableBankError(val statusCode: HttpStatusCode) : 
Exception("Could not reach the bank")
 data class UnparsableResponse(val statusCode: HttpStatusCode, val rawResponse: 
String) :
     Exception("bank responded: ${rawResponse}")
@@ -107,6 +108,20 @@ fun getSubscriberEntityFromId(id: String): 
EbicsSubscriberEntity {
     }
 }
 
+fun getBankAccountDetailsFromAcctid(id: String): EbicsAccountInfoElement {
+    return transaction {
+        val bankAccount = EbicsAccountInfoEntity.find {
+            EbicsAccountsInfoTable.accountId eq id
+        }.firstOrNull() ?: throw 
BankAccountNotFoundError(HttpStatusCode.NotFound)
+        EbicsAccountInfoElement(
+            accountId = id,
+            accountHolderName = bankAccount.accountHolder,
+            iban = bankAccount.iban,
+            bankCode = bankAccount.bankCode
+        )
+    }
+}
+
 fun getSubscriberDetailsFromId(id: String): EbicsClientSubscriberDetails {
     return transaction {
         val subscriber = EbicsSubscriberEntity.findById(
@@ -306,7 +321,7 @@ fun main() {
                 val ret = EbicsAccountsInfoResponse()
                 transaction {
                     EbicsAccountInfoEntity.find {
-                        EbicsAccountsInfoTable.subscriberId eq id
+                        EbicsAccountsInfoTable.subscriber eq id
                     }.forEach {
                         ret.accounts.add(
                             EbicsAccountInfoElement(
@@ -326,6 +341,18 @@ fun main() {
             }
 
             post("/ebics/subscribers/{id}/accounts/{acctid}/prepare-payment") {
+                val acctid = expectId(call.parameters["acctid"])
+                val subscriberId = expectId(call.parameters["id"])
+                val accountDetails: EbicsAccountInfoElement = 
getBankAccountDetailsFromAcctid(acctid)
+                val subscriberDetails = 
getSubscriberDetailsFromId(subscriberId)
+
+                /**
+                 * Payment preparation logic goes here!
+                 */
+
+                call.respond(NexusErrorJson("Work in progress"))
+                return@post
+
                 // FIXME(marcello):  Put transaction in the database, generate 
PAIN.001 document
             }
 

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