feat(connector): add init for VDMJTransaction

connector/shared/src/commonMain/kotlin/io/anthonyberg/connector/shared/vdmj/VDMJTransaction.kt

@@ -0,0 +1,56 @@
+package io.anthonyberg.connector.shared.vdmj
+
+import io.anthonyberg.connector.shared.entity.Action
+import io.anthonyberg.connector.shared.vdmj.type.*
+import io.anthonyberg.connector.shared.xpc.XPC
+import io.ktor.utils.io.errors.*
+
+/**
+ * VDMJ transactions used to control the aircraft in the simulator
+ * and run steps
+ */
+class VDMJTransaction(val actions: List<Action>, xpc: XPC) {
+    private val vdmj = VDMJ()
+
+    private var aircraft: Aircraft
+
+    init {
+        // Check X-Plane is running
+        if (!xpc.connected()) {
+            throw IOException("Could not connect to X-Plane")
+        }
+
+        // Create Aircraft
+        val items: MutableMap<String, ItemObject> = mutableMapOf()
+        val procedure: MutableList<ProcedureItem> = mutableListOf()
+        for (item: Action in actions) {
+            val dref = item.type
+            val type = ItemType.SWITCH
+            val initDref = xpc.getState(dref)[0].toInt()
+            val goal = item.goal.toInt()
+            val middlePosition: Boolean = goal > 1
+
+            items[dref] = ItemObject(
+                type = type,
+                item = Switch(
+                    position = initDref,
+                    middlePosition = middlePosition
+                )
+            )
+            procedure.addLast(
+                ProcedureItem(
+                    dref = dref,
+                    type = type,
+                    goal = goal,
+                    complete = false
+                )
+            )
+        }
+
+        aircraft = Aircraft(items = items, procedure = procedure)
+    }
+
+    fun nextStep() {
+
+    }
+}