From eb7def39ac53729d7a1a55ede1d66d235525ce90 Mon Sep 17 00:00:00 2001
From: Kamron Khakimov <mazudakameron@gmail.com>
Date: Mon, 23 Feb 2026 10:50:39 +0100
Subject: [PATCH 1/3] feat: use new local storage key for fetching data

---
 docs/Formular.md       |  2 +-
 src/barchart/script.js | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/docs/Formular.md b/docs/Formular.md
index bd80621..3bfe596 100644
--- a/docs/Formular.md
+++ b/docs/Formular.md
@@ -48,7 +48,7 @@ Daten werden nach der Berechnung als JSON-String gespeichert:
     "height": "180",
     "bmi": 23.1,
     "category": "Normalgewicht",
-    "timestamp": "2025-02-23T14:30:45.123Z"
+    "timestamp": "2025-02-23T14:30:45.123Z" // new Date().toISOString()
 }
 ```
 
diff --git a/src/barchart/script.js b/src/barchart/script.js
index 62c3f8d..32527d5 100644
--- a/src/barchart/script.js
+++ b/src/barchart/script.js
@@ -10,7 +10,7 @@ const ctx = document.getElementById("bmiChart");
 const USER_HEIGHT_CM = 170; // <-- change once, used everywhere
 const USER_HEIGHT_M = USER_HEIGHT_CM / 100;
 
-let bmiHistory = JSON.parse(localStorage.getItem("bmiHistory")) || [];
+let bmiData = JSON.parse(localStorage.getItem("bmiData")) || [];
 
 function getBMIColor(bmi) {
   if (bmi < 18.5) return "#74c0fc"; // Underweight
@@ -22,12 +22,12 @@ function getBMIColor(bmi) {
 const bmiChart = new Chart(ctx, {
   type: "bar",
   data: {
-    labels: bmiHistory.map((e) => e.date),
+    labels: bmiData.map((e) => e.timestamp),
     datasets: [
       {
         label: "BMI",
-        data: bmiHistory.map((e) => e.bmi),
-        backgroundColor: bmiHistory.map((e) => getBMIColor(e.bmi)),
+        data: bmiData.map((e) => e.bmi),
+        backgroundColor: bmiData.map((e) => getBMIColor(e.bmi)),
         borderRadius: 6,
       },
     ],
@@ -71,9 +71,9 @@ function addBMI() {
     bmi,
   };
 
-  bmiHistory.push(entry);
+  bmiData.push(entry);
 
-  localStorage.setItem("bmiHistory", JSON.stringify(bmiHistory));
+  localStorage.setItem("bmiData", JSON.stringify(bmiData));
 
   bmiChart.data.labels.push(entry.date);
   bmiChart.data.datasets[0].data.push(entry.bmi);

From 5c1de1189173c91ae600c7eccff61ff074d5dbf1 Mon Sep 17 00:00:00 2001
From: Kamron Khakimov <mazudakameron@gmail.com>
Date: Mon, 23 Feb 2026 11:09:15 +0100
Subject: [PATCH 2/3] refactor: remove unused code

---
 src/barchart/script.js | 44 +++---------------------------------------
 1 file changed, 3 insertions(+), 41 deletions(-)

diff --git a/src/barchart/script.js b/src/barchart/script.js
index 32527d5..23efb32 100644
--- a/src/barchart/script.js
+++ b/src/barchart/script.js
@@ -1,16 +1,5 @@
 const ctx = document.getElementById("bmiChart");
-
-/*
-  Height is profile data.
-  Later this can come from:
-  - localStorage
-  - backend API
-  - user profile page
-*/
-const USER_HEIGHT_CM = 170; // <-- change once, used everywhere
-const USER_HEIGHT_M = USER_HEIGHT_CM / 100;
-
-let bmiData = JSON.parse(localStorage.getItem("bmiData")) || [];
+const bmiData = JSON.parse(localStorage.getItem("bmiData")) || [];
 
 function getBMIColor(bmi) {
   if (bmi < 18.5) return "#74c0fc"; // Underweight
@@ -22,7 +11,7 @@ function getBMIColor(bmi) {
 const bmiChart = new Chart(ctx, {
   type: "bar",
   data: {
-    labels: bmiData.map((e) => e.timestamp),
+    labels: bmiData?.map((e) => e.timestamp),
     datasets: [
       {
         label: "BMI",
@@ -54,31 +43,4 @@ const bmiChart = new Chart(ctx, {
       },
     },
   },
-});
-
-function addBMI() {
-  const weight = parseFloat(document.getElementById("weight").value);
-
-  if (!weight) {
-    alert("Please enter weight");
-    return;
-  }
-
-  const bmi = +(weight / (USER_HEIGHT_M * USER_HEIGHT_M)).toFixed(1);
-
-  const entry = {
-    date: new Date().toLocaleDateString(),
-    bmi,
-  };
-
-  bmiData.push(entry);
-
-  localStorage.setItem("bmiData", JSON.stringify(bmiData));
-
-  bmiChart.data.labels.push(entry.date);
-  bmiChart.data.datasets[0].data.push(entry.bmi);
-  bmiChart.data.datasets[0].backgroundColor.push(getBMIColor(entry.bmi));
-  bmiChart.update();
-
-  document.getElementById("weight").value = "";
-}
+});
\ No newline at end of file

From 98b24d4a0b7cb1f8f9439e7c98b7b20d8d62be81 Mon Sep 17 00:00:00 2001
From: Kamron Khakimov <mazudakameron@gmail.com>
Date: Mon, 2 Mar 2026 10:19:26 +0100
Subject: [PATCH 3/3] fix: typo in localstorage save

---
 src/formular/formular.js     | 6 +++---
 src/{app.html => index.html} | 0
 2 files changed, 3 insertions(+), 3 deletions(-)
 rename src/{app.html => index.html} (100%)

diff --git a/src/formular/formular.js b/src/formular/formular.js
index c05c979..0b11826 100644
--- a/src/formular/formular.js
+++ b/src/formular/formular.js
@@ -81,9 +81,9 @@ function saveToLocalStorage(age, date, weight, height, bmi, category) {
     timestamp: new Date().toISOString(),
   };
 
-  let bmiHistory = JSON.parse(localStorage.getItem("bmiData") || "[]");
-  bmiHistory.push(newdata);
-  localStorage.setItem("bmiData", JSON.stringify(bmiHistory));
+  let bmiData = JSON.parse(localStorage.getItem("bmiData") || "[]");
+  bmiData.push(newdata);
+  localStorage.setItem("bmiData", JSON.stringify(bmiData));
 }
 
 
diff --git a/src/app.html b/src/index.html
similarity index 100%
rename from src/app.html
rename to src/index.html