Have got text transformations working

app.go

@@ -2,7 +2,10 @@ package main
 
 import (
 	"context"
-	"fmt"
+	"log"
+
+	"github.com/wailsapp/wails/v2/pkg/runtime"
+	"lmika.dev/pkg/modash/moslice"
 )
 
 // App struct
@@ -22,6 +25,30 @@ func (a *App) startup(ctx context.Context) {
 }
 
 // Greet returns a greeting for the given name
-func (a *App) Greet(name string) string {
+func (a *App) ProcessText(req ProcessTextRequest) {
-	return fmt.Sprintf("Hello %s, It's show time!", name)
+	filter, ok := TextFilters[req.Action]
+	if !ok {
+		log.Printf("Unknown filter: [%s]", req.Action)
+		return
+	}
+
+	resp, err := moslice.MapWithError(req.Input, func(span TextSpan) (TextSpan, error) {
+		outStr, err := filter(span.Text)
+		if err != nil {
+			return TextSpan{}, err
+		}
+		return TextSpan{
+			Text: outStr,
+			Pos:  span.Pos,
+			Len:  span.Len,
+		}, nil
+	})
+	if err != nil {
+		log.Printf("Error running filter: %s", err)
+		return
+	}
+
+	runtime.EventsEmit(a.ctx, "process-text-response", ProcessTextResponse{
+		Output: resp,
+	})
 }

frontend/index.html

@@ -15,10 +15,8 @@
             data-action="keyup.enter->commands#runCommand keydown.esc->commands#dismissDialog keyup->commands#handleKeyup">
       </div>
       <select multiple class="command-options" data-commands-target="commandSelect">
-        <option value="double"><span class="option-label">Double quotes</span></option>
+        <option value="unquote"><span class="option-label">Unquote</span></option>
-        <option value="single"><span class="option-label">Single</span></option>
+        <option value="format-json"><span class="option-label">Format JSON</span></option>
-        <option value="backtick"><span class="option-label">Backtick quotes</span></option>
-        <option value="none"><span class="option-label">None</span></option>
       </select>
     </div>
   </dialog>

frontend/src/app.css

@@ -1,5 +1,6 @@
 .cm-editor {
     height: 100%;
+    font-size: 1.1em;
 }
 
 dialog#command-dialog {

frontend/src/controllers/commands_controller.js

@@ -1,6 +1,8 @@
 import { Controller } from "@hotwired/stimulus"
 
-export default class extends Controller {
+import { textProcessor } from "../services.js";
+
+export class CommandsController extends Controller {
     static targets = [
         "commandInput",
         "commandSelect",
@@ -30,7 +32,7 @@ export default class extends Controller {
     runCommand(ev) {
         ev.preventDefault();
 
-        console.log("Do this: " + this.commandSelectTarget.value);
+        textProcessor.runTextCommand(this.commandSelectTarget.value);
         this.element.close();
     }
 

frontend/src/main.js

@@ -5,7 +5,8 @@ import {EditorView, basicSetup} from "codemirror";
 import {keymap} from "@codemirror/view";
 import { Application } from "@hotwired/stimulus";
 
-import CommandsController from "./controllers/commands_controller.js";
+import { textProcessor } from "./services.js";
+import {CommandsController} from "./controllers/commands_controller.js";
 
 const view = new EditorView({
     parent: document.querySelector("#app"),
@@ -27,4 +28,6 @@ const view = new EditorView({
 window.Stimulus = Application.start()
 Stimulus.register("commands", CommandsController);
 
+textProcessor.setCodeMirrorEditor(view);
+
 view.focus();

frontend/src/services.js

@@ -0,0 +1,31 @@
+import {ProcessText} from "../wailsjs/go/main/App";
+
+class TextProcessor {
+    setCodeMirrorEditor(editor) {
+        this._editor = editor;
+        window.runtime.EventsOn("process-text-response", (data) => {
+            const changes = data.output.map(span => ({
+                from: span.pos,
+                to: span.pos + span.len,
+                insert: span.text,
+            }));
+            this._editor.dispatch({ changes: changes });
+        });
+    }
+
+    runTextCommand(command) {
+        if (this._editor === undefined) {
+            return;
+        }
+
+        ProcessText({
+            action: command,
+            input: [
+                {text:  this._editor.state.doc.toString(), pos: 0, len: this._editor.state.doc.length}
+            ],
+        });
+    }
+}
+
+
+export const textProcessor = new TextProcessor();

frontend/wailsjs/go/main/App.d.ts

@@ -1,4 +1,5 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
+import {main} from '../models';
 
-export function Greet(arg1:string):Promise<string>;
+export function ProcessText(arg1:main.ProcessTextRequest):Promise<void>;

frontend/wailsjs/go/main/App.js

@@ -2,6 +2,6 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
 
-export function Greet(arg1) {
+export function ProcessText(arg1) {
-  return window['go']['main']['App']['Greet'](arg1);
+  return window['go']['main']['App']['ProcessText'](arg1);
 }

frontend/wailsjs/go/models.ts

@@ -0,0 +1,53 @@
+export namespace main {
+	
+	export class TextSpan {
+	    text: string;
+	    pos: number;
+	    len: number;
+	
+	    static createFrom(source: any = {}) {
+	        return new TextSpan(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.text = source["text"];
+	        this.pos = source["pos"];
+	        this.len = source["len"];
+	    }
+	}
+	export class ProcessTextRequest {
+	    action: string;
+	    input: TextSpan[];
+	
+	    static createFrom(source: any = {}) {
+	        return new ProcessTextRequest(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.action = source["action"];
+	        this.input = this.convertValues(source["input"], TextSpan);
+	    }
+	
+		convertValues(a: any, classs: any, asMap: boolean = false): any {
+		    if (!a) {
+		        return a;
+		    }
+		    if (a.slice && a.map) {
+		        return (a as any[]).map(elem => this.convertValues(elem, classs));
+		    } else if ("object" === typeof a) {
+		        if (asMap) {
+		            for (const key of Object.keys(a)) {
+		                a[key] = new classs(a[key]);
+		            }
+		            return a;
+		        }
+		        return new classs(a);
+		    }
+		    return a;
+		}
+	}
+
+}
+

go.mod

@@ -1,8 +1,13 @@
 module dequoter
 
-go 1.23
+go 1.23.3
 
-require github.com/wailsapp/wails/v2 v2.10.2
+toolchain go1.24.3
+
+require (
+	github.com/wailsapp/wails/v2 v2.10.2
+	lmika.dev/pkg/modash v0.0.0-20250729120720-cdaa1c8abbe3
+)
 
 require (
 	github.com/bep/debounce v1.2.1 // indirect

go.sum

@@ -79,3 +79,5 @@ golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+lmika.dev/pkg/modash v0.0.0-20250729120720-cdaa1c8abbe3 h1:EqYZdM6ui++F2NPdFCjKAboOr14eVTIIiRfngBgg/WA=
+lmika.dev/pkg/modash v0.0.0-20250729120720-cdaa1c8abbe3/go.mod h1:8NDl/yR1eCCEhip9FJlVuMNXIeaztQ0Ks/tizExFcTI=

main.go

@@ -17,7 +17,7 @@ func main() {
 
 	// Create application with options
 	err := wails.Run(&options.App{
-		Title:  "dequoter",
+		Title:  "Dequoter",
 		Width:  1024,
 		Height: 768,
 		AssetServer: &assetserver.Options{

models.go

@@ -0,0 +1,16 @@
+package main
+
+type TextSpan struct {
+	Text string `json:"text"`
+	Pos  int    `json:"pos"`
+	Len  int    `json:"len"`
+}
+
+type ProcessTextRequest struct {
+	Action string     `json:"action"`
+	Input  []TextSpan `json:"input"`
+}
+
+type ProcessTextResponse struct {
+	Output []TextSpan `json:"output"`
+}

textfilters.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"strconv"
+)
+
+type TextFilter func(input string) (output string, err error)
+
+var TextFilters = map[string]TextFilter{
+	"unquote": func(input string) (output string, err error) {
+		return strconv.Unquote(input)
+	},
+	"format-json": func(input string) (output string, err error) {
+		var dst bytes.Buffer
+		if err := json.Indent(&dst, []byte(input), "", "  "); err != nil {
+			return "", err
+		}
+		return dst.String(), nil
+	},
+}