From b05860b6d2ea17db29a338659def49dc31082346 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 29 Aug 2023 01:30:30 +0800
Subject: Refactor dialog module.

---
 FrontEnd/src/components/dialog/DialogProvider.tsx | 95 +++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 FrontEnd/src/components/dialog/DialogProvider.tsx

(limited to 'FrontEnd/src/components/dialog/DialogProvider.tsx')

diff --git a/FrontEnd/src/components/dialog/DialogProvider.tsx b/FrontEnd/src/components/dialog/DialogProvider.tsx
new file mode 100644
index 00000000..bb85e4cf
--- /dev/null
+++ b/FrontEnd/src/components/dialog/DialogProvider.tsx
@@ -0,0 +1,95 @@
+import { useState, useContext, createContext, ReactNode } from "react";
+
+import { UiLogicError } from "../common";
+
+type DialogMap<D extends string> = {
+  [K in D]: ReactNode;
+};
+
+interface DialogController<D extends string> {
+  currentDialog: D | null;
+  currentDialogReactNode: ReactNode;
+  canSwitchDialog: boolean;
+  switchDialog: (newDialog: D | null) => void;
+  setCanSwitchDialog: (enable: boolean) => void;
+  closeDialog: () => void;
+  forceSwitchDialog: (newDialog: D | null) => void;
+  forceCloseDialog: () => void;
+}
+
+export function useDialog<D extends string>(
+  dialogs: DialogMap<D>,
+  options?: {
+    initDialog?: D | null;
+    onClose?: {
+      [K in D]?: () => void;
+    };
+  },
+): {
+  controller: DialogController<D>;
+  switchDialog: (newDialog: D | null) => void;
+  forceSwitchDialog: (newDialog: D | null) => void;
+  createDialogSwitch: (newDialog: D | null) => () => void;
+} {
+  const [canSwitchDialog, setCanSwitchDialog] = useState<boolean>(true);
+  const [dialog, setDialog] = useState<D | null>(options?.initDialog ?? null);
+
+  const forceSwitchDialog = (newDialog: D | null) => {
+    if (dialog != null) {
+      options?.onClose?.[dialog]?.();
+    }
+    setDialog(newDialog);
+    setCanSwitchDialog(true);
+  };
+
+  const switchDialog = (newDialog: D | null) => {
+    if (canSwitchDialog) {
+      forceSwitchDialog(newDialog);
+    }
+  };
+
+  const controller: DialogController<D> = {
+    currentDialog: dialog,
+    currentDialogReactNode: dialog == null ? null : dialogs[dialog],
+    canSwitchDialog,
+    switchDialog,
+    setCanSwitchDialog,
+    closeDialog: () => switchDialog(null),
+    forceSwitchDialog,
+    forceCloseDialog: () => forceSwitchDialog(null),
+  };
+
+  return {
+    controller,
+    switchDialog,
+    forceSwitchDialog,
+    createDialogSwitch: (newDialog: D | null) => () => switchDialog(newDialog),
+  };
+}
+
+const DialogControllerContext = createContext<DialogController<string> | null>(
+  null,
+);
+
+export function useDialogController(): DialogController<string> {
+  const controller = useContext(DialogControllerContext);
+  if (controller == null) throw new UiLogicError("not in dialog provider");
+  return controller;
+}
+
+export function useCloseDialog(): () => void {
+  const controller = useDialogController();
+  return controller.closeDialog;
+}
+
+export function DialogProvider<D extends string>({
+  controller,
+}: {
+  controller: DialogController<D>;
+}) {
+  return (
+    <DialogControllerContext.Provider value={controller as never}>
+      {controller.currentDialogReactNode}
+    </DialogControllerContext.Provider>
+  );
+}
-- 
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