configured initial routes

src/main/kotlin/routes/PatronRoutes.kt

@@ -1,6 +1,10 @@
 package codes.kalar.routes
 
+import codes.kalar.exception.DbElementInsertionException
+import codes.kalar.exception.DbElementNotFoundException
+import codes.kalar.model.NewPatron
 import codes.kalar.model.Patron
+import codes.kalar.service.PatronService
 import io.ktor.http.*
 import io.ktor.server.application.*
 import io.ktor.server.request.*
@@ -9,32 +13,68 @@ import io.ktor.server.routing.*
 import java.sql.Connection
 
 fun Application.configurePatronRoutes(dbConnection: Connection) {
+    val patronService = PatronService(dbConnection)
 
     routing {
-        get("/patron") {
-            if (call.request.queryParameters["patron"] == null) {
-                call.respond(HttpStatusCode.BadRequest, "Invalid parameters")
+        get("/patron/{id}") {
+            try {
+                val id = call.pathParameters["id"]!!.toLong()
+                val patron = patronService.readPatronById(id)
+                call.respond(HttpStatusCode.OK, patron)
+            } catch (cause: DbElementInsertionException) {
+                call.respond(HttpStatusCode.BadRequest, cause.message ?: "Unknown error")
+            } catch (cause: NumberFormatException) {
+                call.respond(HttpStatusCode.BadRequest, cause.message ?: "Unknown error")
             }
-            else {
-                call.respondText("Hello, ${call.request.queryParameters["patron"]}")
+        }
+
+        get("/patron") {
+            try {
+                val username = call.parameters["username"]
+                if (username == null) {
+                    call.respond(HttpStatusCode.BadRequest, "username & password required")
+                } else {
+                    val patron = patronService.readPatronByLoginUsername(username)
+                    call.respond(HttpStatusCode.OK, patron)
+                }
+            } catch (cause: DbElementNotFoundException) {
+                call.respond(HttpStatusCode.BadRequest, "Username not found")
             }
         }
 
         post("/patron") {
-            val patron = call.receive<Patron>()
-            call.respondText("${patron.name} is posted")
+            try {
+                val patron = call.receive<NewPatron>()
+                val id = patronService.create(patron)
+                call.respondText("Adding ${patron.name} to database with the id of $id", status = HttpStatusCode.OK)
+            } catch (cause: DbElementInsertionException) {
+                call.respond(HttpStatusCode.BadRequest, cause.message ?: "Bad Arguments")
+            } catch (cause: ContentTransformationException) {
+                call.respond(HttpStatusCode.BadRequest, "Bad Arguments. Must pass a valid CollectionItem object.")
+            }
         }
 
         patch("/patron") {
-            val patron = call.receive<Patron>()
-            call.respondText("${patron.name} is patched")
+            try {
+                val patron = call.receive<Patron>()
+                val patchedPatron = patronService.update(patron)
+                call.respondText("${patron.name} is patched")
+            } catch (cause: DbElementInsertionException) {
+                call.respond(HttpStatusCode.BadRequest, cause.message ?: "Unable to update Patron.")
+            } catch (cause: ContentTransformationException) {
+
+            }
         }
 
-        delete("/patron") {
-            if (call.request.queryParameters["id"] == null) {
-                call.respond(HttpStatusCode.BadRequest, "Invalid parameters")
-            } else {
-                call.respondText("Do you have permissions?")
+        delete("/patron/{id}") {
+            try {
+                val id = call.pathParameters["id"]!!.toLong()
+                patronService.delete(id)
+                call.respond(HttpStatusCode.OK, "Successfully deleted the patron")
+            } catch (cause: DbElementInsertionException) {
+                call.respond(HttpStatusCode.BadRequest, cause.message ?: "Unable to delete Patron.")
+            } catch (cause: NumberFormatException) {
+                call.respond(HttpStatusCode.BadRequest, cause.message ?: "ID needs to be a number.")
             }
         }
     }