feat: add recipe theme and resume controls

Fixes #4, #7

node_helper.js

@@ -7,13 +7,18 @@ const NextcloudPublicShare = require("./lib/nextcloud-public-share");
 const { parseYield, scaleRecipe } = require("./lib/recipe-scaler");
 const { normalizeProgress, updateProgress } = require("./lib/recipe-progress");
 
+function normalizeTheme(theme) {
+  return theme === "light" ? "light" : "dark";
+}
+
 module.exports = NodeHelper.create({
   start() {
-    this.config = { controlPath: "/MMM-NextcloudCookbook/control" };
+    this.config = { controlPath: "/MMM-NextcloudCookbook/control", theme: "dark" };
     this.state = {
       active: false, recipeId: null, recipe: null, portions: null,
-      progress: normalizeProgress(), error: null
+      recipeName: null, progress: normalizeProgress(), theme: "dark", error: null
     };
+    this.hasPersistedTheme = false;
     this.recipeCache = { expires: 0, recipes: [] };
     this.stateFile = path.join(process.cwd(), "config", "MMM-NextcloudCookbook-state.json");
     this.configureClient();
@@ -26,6 +31,10 @@ module.exports = NodeHelper.create({
       this.updateProgressFromMirror(payload);
       return;
     }
+    if (notification === "SET_THEME") {
+      this.updateTheme(payload);
+      return;
+    }
     if (notification !== "CONFIG") return;
     this.config = { ...this.config, ...payload };
     try {
@@ -35,6 +44,7 @@ module.exports = NodeHelper.create({
       return;
     }
     this.stateReady.then(async () => {
+      if (!this.hasPersistedTheme) this.state.theme = normalizeTheme(this.config.theme);
       this.sendSocketNotification("STATE", this.publicState());
       await this.restoreRecipe();
     }).catch((error) => this.setError(error));
@@ -97,6 +107,7 @@ module.exports = NodeHelper.create({
           active: true,
           recipeId,
           recipe,
+          recipeName: recipe.name || "Untitled recipe",
           portions: isResumingRecipe
             ? this.state.portions
             : Math.max(1, Math.round(parseYield(recipe.recipeYield) || 1)),
@@ -110,6 +121,43 @@ module.exports = NodeHelper.create({
         return next(error);
       }
     });
+    this.expressApp.post("/MMM-NextcloudCookbook/api/resume", async (_request, response, next) => {
+      try {
+        if (this.state.active) return response.json(this.publicState());
+        if (!this.state.recipeId) return response.status(409).json({ error: "No recent recipe to resume" });
+        const recipe = await this.getClient().getRecipe(this.state.recipeId);
+        this.state = {
+          ...this.state,
+          active: true,
+          recipe,
+          recipeName: recipe.name || "Untitled recipe",
+          portions: Number.isInteger(this.state.portions) && this.state.portions > 0
+            ? this.state.portions
+            : Math.max(1, Math.round(parseYield(recipe.recipeYield) || 1)),
+          progress: normalizeProgress(this.state.progress),
+          error: null
+        };
+        await this.saveState();
+        this.sendSocketNotification("STATE", this.publicState());
+        return response.json(this.publicState());
+      } catch (error) {
+        return next(error);
+      }
+    });
+    this.expressApp.post("/MMM-NextcloudCookbook/api/theme", async (request, response, next) => {
+      try {
+        const theme = request.body?.theme;
+        if (!["light", "dark"].includes(theme)) {
+          return response.status(400).json({ error: "theme must be light or dark" });
+        }
+        this.state.theme = theme;
+        await this.saveState();
+        this.sendSocketNotification("STATE", this.publicState());
+        return response.json(this.publicState());
+      } catch (error) {
+        return next(error);
+      }
+    });
     this.expressApp.post("/MMM-NextcloudCookbook/api/portions", async (request, response, next) => {
       try {
         const delta = request.body?.delta;
@@ -174,13 +222,17 @@ module.exports = NodeHelper.create({
   async loadState() {
     try {
       const persisted = JSON.parse(await fs.readFile(this.stateFile, "utf8"));
+      this.hasPersistedTheme = typeof persisted.theme === "string";
+      this.state.theme = normalizeTheme(persisted.theme);
       if (!persisted.recipeId) return;
       this.state = {
         active: Boolean(persisted.active),
         recipeId: persisted.recipeId,
         recipe: null,
+        recipeName: typeof persisted.recipeName === "string" ? persisted.recipeName : null,
         portions: Number.isInteger(persisted.portions) ? persisted.portions : null,
         progress: normalizeProgress(persisted.progress),
+        theme: this.state.theme,
         error: null
       };
     } catch (error) {
@@ -205,8 +257,10 @@ module.exports = NodeHelper.create({
     await fs.writeFile(temporary, `${JSON.stringify({
       active: this.state.active,
       recipeId: this.state.recipeId,
+      recipeName: this.state.recipeName,
       portions: this.state.portions,
-      progress: this.state.progress
+      progress: this.state.progress,
+      theme: this.state.theme
     })}\n`, {
       mode: 0o600
     });
@@ -227,6 +281,9 @@ module.exports = NodeHelper.create({
         : null,
       portions: this.state.portions,
       progress: this.state.progress,
+      theme: this.state.theme,
+      canResume: !this.state.active && Boolean(this.state.recipeId),
+      lastRecipeName: !this.state.active ? this.state.recipeName : null,
       error: this.state.error
     };
   },
@@ -241,5 +298,17 @@ module.exports = NodeHelper.create({
       console.error(`[MMM-NextcloudCookbook] ${error.message}`);
       this.sendSocketNotification("STATE", this.publicState());
     }
+  },
+
+  async updateTheme(theme) {
+    try {
+      if (!["light", "dark"].includes(theme)) throw new Error("theme must be light or dark");
+      this.state.theme = theme;
+      await this.saveState();
+      this.sendSocketNotification("STATE", this.publicState());
+    } catch (error) {
+      console.error(`[MMM-NextcloudCookbook] ${error.message}`);
+      this.sendSocketNotification("STATE", this.publicState());
+    }
   }
 });