package.json

@@ -1,7 +1,7 @@
 {
   "name": "iccery",
   "private": true,
-  "version": "0.1.14",
+  "version": "0.1.15",
   "type": "module",
   "scripts": {
     "tauri": "tauri"

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "iccery"
-version = "0.1.14"
+version = "0.1.15"
 description = "Modern Printer Profiling UI frontend for ArgyllCMS"
 authors = ["Gordon"]
 edition = "2021"

src-tauri/src/commands.rs

@@ -122,6 +122,43 @@ pub fn resolve_profile_extension(cwd: &str, basename: &str) -> (String, std::pat
     }
 }
 
+#[derive(Serialize)]
+pub struct StageStatus {
+    pub stage1_complete: bool,
+    pub stage2_complete: bool,
+    pub stage3_complete: bool,
+    pub stage4_complete: bool,
+    pub profile_path: Option<String>,
+}
+
+#[tauri::command]
+pub fn verify_stage_artefacts(cwd: String, basename: String) -> StageStatus {
+    if cwd.trim().is_empty() || basename.trim().is_empty() {
+        return StageStatus {
+            stage1_complete: false,
+            stage2_complete: false,
+            stage3_complete: false,
+            stage4_complete: false,
+            profile_path: None,
+        };
+    }
+
+    let base_path = std::path::Path::new(&cwd);
+    let ti1 = base_path.join(format!("{}.ti1", basename)).exists();
+    let ti2 = base_path.join(format!("{}.ti2", basename)).exists();
+    let ti3 = base_path.join(format!("{}.ti3", basename)).exists();
+    let (_, prof_p) = resolve_profile_extension(&cwd, &basename);
+    let prof_exists = prof_p.exists();
+
+    StageStatus {
+        stage1_complete: ti1,
+        stage2_complete: ti2,
+        stage3_complete: ti3,
+        stage4_complete: prof_exists,
+        profile_path: if prof_exists { Some(prof_p.to_string_lossy().to_string()) } else { None },
+    }
+}
+
 #[tauri::command]
 pub fn get_profile_path(cwd: String, basename: String) -> String {
     let (_, path) = resolve_profile_extension(&cwd, &basename);

src-tauri/src/lib.rs

@@ -19,6 +19,7 @@ pub fn run() {
             commands::resolve_binary,
             commands::detect_instruments,
             commands::get_profile_path,
+            commands::verify_stage_artefacts,
             commands::extract_gamut,
             commands::run_targen,
             commands::run_printtarg,

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "ICCery",
-  "version": "0.1.14",
+  "version": "0.1.15",
   "identifier": "com.gronod.iccery",
   "build": {
     "frontendDist": "../src"

src/js/app.js

@@ -5,6 +5,7 @@ import { initColprof } from './colprof.js';
 import { initProfcheck } from './profcheck.js';
 import { initSettings } from './settings.js';
 import { initGamutViewer } from './gamut_viewer.js';
+import { wizardState } from './state.js';
 
 const { invoke } = window.__TAURI__.core;
 
@@ -13,8 +14,15 @@ document.addEventListener('DOMContentLoaded', () => {
   const steps = document.querySelectorAll('.step');
   const stages = document.querySelectorAll('.stage');
 
+  // Initialize gating on load
+  wizardState.updateGating();
+
   steps.forEach(step => {
     step.addEventListener('click', () => {
+      if (step.classList.contains('disabled')) {
+        return;
+      }
+
       const targetStep = step.getAttribute('data-step');
       
       // Update UI

src/js/chartread.js

@@ -2,6 +2,7 @@ const { invoke } = window.__TAURI__.core;
 const { listen } = window.__TAURI__.event;
 import { startSwatchListener, stopSwatchListener } from './swatch_grid.js';
 import { setStage3Result } from './colprof.js';
+import { wizardState } from './state.js';
 
 // Module-level state: set by Stage 2 when it completes
 let stage2Basename = "";
@@ -11,8 +12,9 @@ let stage2Cwd = "";
  * Called by printtarg.js after Stage 2 completes.
  */
 export function setStage2Result(basename, cwd) {
-  stage2Basename = basename;
-  stage2Cwd = cwd;
+  stage2Basename = basename || wizardState.basename;
+  stage2Cwd = cwd || wizardState.cwd;
+  wizardState.setTarget(stage2Basename, stage2Cwd);
 }
 
 // State machine states
@@ -84,11 +86,17 @@ export function initChartread() {
   // Start reading button
   if (btnStartRead) {
     btnStartRead.addEventListener("click", async () => {
-      if (!stage2Basename) {
+      const basename = stage2Basename || wizardState.basename;
+      const cwd = stage2Cwd || wizardState.cwd;
+
+      if (!basename || !cwd) {
         setPrompt("Error: No .ti2 file available. Complete Stage 2 first.");
         return;
       }
 
+      stage2Basename = basename;
+      stage2Cwd = cwd;
+
       logPre.textContent = "";
       logContainer.open = false;
       logContainer.classList.remove("hidden");
@@ -96,11 +104,11 @@ export function initChartread() {
       setPrompt("Starting chartread... waiting for instrument calibration prompt.");
 
       const config = {
-        basename: stage2Basename,
-        cwd: stage2Cwd,
+        basename: basename,
+        cwd: cwd,
       };
 
-      currentProcessId = `chartread_${stage2Basename}`;
+      currentProcessId = `chartread_${basename}`;
 
       // Start swatch grid listener
       await startSwatchListener(currentProcessId);
@@ -152,7 +160,8 @@ export function initChartread() {
             setState(STATE.FINISHED);
             setPrompt("✅ Measurement complete! .ti3 file has been saved.");
             logPre.textContent += "\n[SUCCESS] chartread completed. .ti3 file written.\n";
-            setStage3Result(stage2Basename, stage2Cwd);
+            wizardState.setTarget(basename, cwd);
+            setStage3Result(basename, cwd);
             advanceToStage4();
           } else {
             setState(STATE.FINISHED);

src/js/colprof.js

@@ -2,6 +2,7 @@ const { invoke } = window.__TAURI__.core;
 const { listen } = window.__TAURI__.event;
 import { setStage4Result } from './profcheck.js';
 import { loadGamutMesh } from './gamut_viewer.js';
+import { wizardState } from './state.js';
 
 let chartreadBasename = "";
 let chartreadCwd = "";
@@ -10,8 +11,9 @@ let chartreadCwd = "";
  * Called by chartread.js after Stage 3 completes.
  */
 export function setStage3Result(basename, cwd) {
-  chartreadBasename = basename;
-  chartreadCwd = cwd;
+  chartreadBasename = basename || wizardState.basename;
+  chartreadCwd = cwd || wizardState.cwd;
+  wizardState.setTarget(chartreadBasename, chartreadCwd);
 }
 
 export function initColprof() {
@@ -31,8 +33,19 @@ export function initColprof() {
   if (!btnCreateProfile) return;
 
   btnCreateProfile.addEventListener("click", async () => {
-    const basename = chartreadBasename || "test_target";
-    const cwd = chartreadCwd || "";
+    const basename = chartreadBasename || wizardState.basename;
+    const cwd = chartreadCwd || wizardState.cwd;
+
+    if (!basename || !cwd) {
+      logPre.textContent = "[ERROR] No .ti3 measurement file available. Please complete Stage 3 first.\n";
+      logContainer.open = true;
+      logContainer.classList.remove("hidden");
+      btnCreateProfile.disabled = false;
+      return;
+    }
+
+    chartreadBasename = basename;
+    chartreadCwd = cwd;
 
     const description = descInput.value.trim() || basename;
 
@@ -104,6 +117,7 @@ export function initColprof() {
             successInfo.textContent = `Profile: ${displayFilename} (${description})`;
             successCard.classList.remove("hidden");
 
+            wizardState.setTarget(basename, cwd);
             setStage4Result(basename, cwd);
 
             // Automatically extract gamut mesh for 3D visualization

src/js/printtarg.js

@@ -1,6 +1,7 @@
 const { invoke } = window.__TAURI__.core;
 const { listen } = window.__TAURI__.event;
 import { setStage2Result } from './chartread.js';
+import { wizardState } from './state.js';
 
 // Module-level state: set by Stage 1 when it completes
 let stage1Basename = "";
@@ -13,8 +14,9 @@ let discoveredPrinters = [];
  * Passes the basename and working directory forward.
  */
 export function setStage1Result(basename, cwd) {
-  stage1Basename = basename;
-  stage1Cwd = cwd;
+  stage1Basename = basename || wizardState.basename;
+  stage1Cwd = cwd || wizardState.cwd;
+  wizardState.setTarget(stage1Basename, stage1Cwd);
 }
 
 export function initPrinttarg() {
@@ -347,6 +349,7 @@ export function initPrinttarg() {
               showNotification("info", "Target pages generated. Select your destination printer below and print with color management strictly bypassed.");
             }
 
+            wizardState.setTarget(stage1Basename, stage1Cwd);
             setStage2Result(stage1Basename, stage1Cwd);
           } else {
             logPre.textContent += `\n[ERROR] printtarg exited with code ${event.payload.code}.\n`;

src/js/profcheck.js

@@ -1,6 +1,7 @@
 const { invoke } = window.__TAURI__.core;
 const { listen } = window.__TAURI__.event;
 import { loadGamutMesh } from './gamut_viewer.js';
+import { wizardState } from './state.js';
 
 let profileBasename = "";
 let profileCwd = "";
@@ -9,8 +10,9 @@ let profileCwd = "";
  * Called by colprof.js after Stage 4 completes.
  */
 export function setStage4Result(basename, cwd) {
-  profileBasename = basename;
-  profileCwd = cwd;
+  profileBasename = basename || wizardState.basename;
+  profileCwd = cwd || wizardState.cwd;
+  wizardState.setTarget(profileBasename, profileCwd);
 }
 
 export function initProfcheck() {
@@ -26,8 +28,19 @@ export function initProfcheck() {
   if (!btnVerify) return;
 
   btnVerify.addEventListener("click", async () => {
-    const basename = profileBasename || "test_target";
-    const cwd = profileCwd || "";
+    const basename = profileBasename || wizardState.basename;
+    const cwd = profileCwd || wizardState.cwd;
+
+    if (!basename || !cwd) {
+      logPre.textContent = "[ERROR] No profile available to verify. Please complete Stage 4 first.\n";
+      logContainer.open = true;
+      logContainer.classList.remove("hidden");
+      btnVerify.disabled = false;
+      return;
+    }
+
+    profileBasename = basename;
+    profileCwd = cwd;
 
     const sep = cwd.includes('\\') ? '\\' : '/';
     const ti3Path = cwd ? `${cwd}${sep}${basename}.ti3` : `${basename}.ti3`;

src/js/state.js

@@ -1,16 +1,59 @@
-// Simple state machine for the UI
-export const state = {
+const { invoke } = window.__TAURI__.core;
+
+export const wizardState = {
   currentStage: 1,
-  profileName: 'default_profile',
-  instrument: null,
+  basename: "",
+  cwd: "",
   
-  update(newState) {
-    Object.assign(this, newState);
-    this.render();
+  setTarget(basename, cwd) {
+    if (basename) this.basename = basename;
+    if (cwd) this.cwd = cwd;
+    this.updateGating();
   },
-  
-  render() {
-    // Reactive UI updates go here
-    console.log('State updated:', this);
+
+  async updateGating() {
+    const steps = document.querySelectorAll('.step');
+    if (!steps || steps.length === 0) return;
+
+    if (!this.basename || !this.cwd) {
+      steps.forEach((step, idx) => {
+        if (idx === 0) {
+          step.classList.remove('disabled');
+        } else {
+          step.classList.add('disabled');
+        }
+      });
+      return;
+    }
+
+    try {
+      const status = await invoke('verify_stage_artefacts', {
+        cwd: this.cwd,
+        basename: this.basename,
+      });
+
+      // Step 1: always accessible
+      // Step 2: unlocked if .ti1 exists
+      // Step 3: unlocked if .ti2 exists
+      // Step 4: unlocked if .ti3 exists
+      // Step 5: unlocked if profile exists
+      const unlocked = [
+        true,
+        status.stage1_complete,
+        status.stage2_complete,
+        status.stage3_complete,
+        status.stage4_complete,
+      ];
+
+      steps.forEach((step, idx) => {
+        if (unlocked[idx]) {
+          step.classList.remove('disabled');
+        } else {
+          step.classList.add('disabled');
+        }
+      });
+    } catch (e) {
+      console.warn("Could not verify stage artefacts:", e);
+    }
   }
 };

src/js/targen.js

@@ -2,6 +2,7 @@ const { invoke } = window.__TAURI__.core;
 const { listen } = window.__TAURI__.event;
 const { save } = window.__TAURI__.dialog;
 import { setStage1Result } from './printtarg.js';
+import { wizardState } from './state.js';
 
 export function initTargen() {
   const colourSpaceRadios = document.querySelectorAll('input[name="colourSpace"]');
@@ -157,9 +158,8 @@ export function initTargen() {
           
           if (event.payload.code === 0) {
             logPre.textContent += "\n[SUCCESS] Targen completed successfully.\n";
-            // In a real app we'd dispatch an event to advance the stepper here.
-            // For now, we'll manually unlock stage 2 in the state.
             btnGenerate.disabled = false;
+            wizardState.setTarget(basename, currentWorkingDir);
             setStage1Result(basename, currentWorkingDir);
             advanceToStage2();
           } else {

src/styles/main.css

@@ -93,6 +93,15 @@ body {
   border-left: 4px solid var(--accent-color);
 }
 
+.step.disabled {
+  opacity: 0.3;
+  cursor: not-allowed;
+}
+
+.step.disabled:hover {
+  background-color: transparent;
+}
+
 .content {
   flex: 1;
   padding: 24px 32px;