現在地テキスト表示関連の機能を統合化

lib/trainPositionTextArray.ts

@@ -0,0 +1,33 @@
+type returnBetweenType = {
+  isBetween: true;
+  Pos: {
+    from: string;
+    to: string;
+  };
+};
+type returnCurrentType = {
+  isBetween: false;
+  Pos: {
+    Pos: string;
+  };
+};
+export type trainDataType = {
+  Pos?: string;
+  Direction?: number;
+};
+type trainData = (
+  trainData: trainDataType
+) => returnBetweenType | returnCurrentType;
+
+export const trainPosition: trainData = (trainData) => {
+  if (!trainData?.Pos) return { isBetween: false, Pos: { Pos: "" } };
+  const { Pos, Direction } = trainData;
+  if (Pos.match("～")) {
+    const [topST, downST] = Pos.replace("（下り）", "")
+      .replace("（上り）", "")
+      .split("～");
+    const from = Direction == 1 ? topST : downST;
+    const to = Direction == 1 ? downST : topST;
+    return { isBetween: true, Pos: { from, to } };
+  } else return { isBetween: false, Pos: { Pos } };
+};