commit 2b34943a4846f9a48eb3105e41473f7e5a6e81ba
Author: moanos <julian-samuel@gebuehr.net>
Date:   Thu Jul 18 19:51:24 2024 +0200

    feat: Initial commit

diff --git a/assets/calculator.js b/assets/calculator.js
new file mode 100644
index 0000000..05b6eff
--- /dev/null
+++ b/assets/calculator.js
@@ -0,0 +1,89 @@
+const MINIMUM_BASE_AREA = 0.5;
+const MINIMUM_AREA_THREE_RATS = 1.8;
+const AREA_PER_ADDITIONAL_RAT = 0.2;
+const MAXIMUM_FALL_HEIGHT = 0.5;
+const MINIMUM_LENGTH = 0.8;
+
+const FAILED_BASE_AREA = "base_area";
+const FAILED_OVERALL_AREA = "overall_area";
+const FAILED_FALL_HEIGHT = "fall_height";
+const FAILED_NUM_RATS = "num_rats";
+const FAILED_LENGTH = "length";
+
+const FAIL_CRITERIA = {
+    [FAILED_BASE_AREA]: `Die Mindestgrundfläche des Käfigs muss ${MINIMUM_BASE_AREA}m² (also z.B. 100x50cm) betragen.`,
+    [FAILED_OVERALL_AREA]: "Die Gesamtfläche im Käfig ist zu klein.",
+    [FAILED_FALL_HEIGHT]: `Die mögliche Fallhöhe darf nicht mehr als ${(MAXIMUM_FALL_HEIGHT * 100).toFixed(3)}cm betragen.`,
+    [FAILED_NUM_RATS]: "Es müssen mindestens 3 Ratten zusammenleben, Paarhaltung ist nicht artgerecht.",
+    [FAILED_LENGTH]: `Eine Seite des Käfig muss mindestens ${(MINIMUM_LENGTH * 100).toFixed(3)}cm lang sein um Rennen zu ermöglichen.`,
+};
+
+class Dimensions {
+    constructor(length, width, height) {
+        this.length = length;
+        this.width = width;
+        this.height = height;
+    }
+
+    toString() {
+        return `${this.length}x${this.width}x${this.height}`;
+    }
+
+    static fromDict(data) {
+        const { length, width, height } = data;
+        return new Dimensions(length, width, height);
+    }
+}
+
+function overallAreaNeeded(numOfRats) {
+    if (numOfRats < 3 || numOfRats > 15) {
+        throw new Error("This formula works only from 3 to 15 rats");
+    }
+    return MINIMUM_AREA_THREE_RATS + (numOfRats - 3) * AREA_PER_ADDITIONAL_RAT;
+}
+
+function cageCheck(dimensions, numRats, numFullFloors) {
+    let failedCriteria = {};
+
+    if (numRats < 2 || numRats > 15) {
+        failedCriteria[FAILED_NUM_RATS] = FAIL_CRITERIA[FAILED_NUM_RATS];
+    }
+
+    const baseArea = dimensions.length * dimensions.width;
+    if (baseArea < MINIMUM_BASE_AREA) {
+        failedCriteria[FAILED_BASE_AREA] = FAIL_CRITERIA[FAILED_BASE_AREA];
+    }
+
+    const areaNeeded = overallAreaNeeded(numRats);
+    if (baseArea * numFullFloors < areaNeeded) {
+        failedCriteria[FAILED_OVERALL_AREA] = FAIL_CRITERIA[FAILED_OVERALL_AREA];
+    }
+
+    if (dimensions.height / numFullFloors > MAXIMUM_FALL_HEIGHT) {
+        failedCriteria[FAILED_FALL_HEIGHT] = FAIL_CRITERIA[FAILED_FALL_HEIGHT];
+    }
+
+    if (dimensions.width < MINIMUM_LENGTH && dimensions.length < MINIMUM_LENGTH) {
+        failedCriteria[FAILED_LENGTH] = FAIL_CRITERIA[FAILED_LENGTH];
+    }
+
+    return failedCriteria;
+}
+
+const expectedAreaPerNumRats = { 3: 1.8, 4: 2.0 };
+for (let numRats in expectedAreaPerNumRats) {
+    console.log(`Area needed for ${numRats}: Calculated=${overallAreaNeeded(parseInt(numRats))}`);
+}
+
+const exampleCageChecks = [
+    [[], new Dimensions(1, 0.50, 1), 4, 4],
+    [[FAIL_CRITERIA[FAILED_BASE_AREA]], new Dimensions(0.99, 0.50, 1), 3, 4],
+    [[FAIL_CRITERIA[FAILED_OVERALL_AREA]], new Dimensions(0.99, 0.50, 1), 4, 4],
+    [[FAIL_CRITERIA[FAILED_OVERALL_AREA]], new Dimensions(0.79, 0.79, 1), 4, 4],
+];
+
+for (let idx in exampleCageChecks) {
+    let check = exampleCageChecks[idx];
+    console.log(`Example ${idx}: ${check[1]} n(rats): ${check[2]}, n(floors): ${check[3]}`);
+    console.log(`Result: ${JSON.stringify(cageCheck(check[1], check[2], check[3]))}\n`);
+}
diff --git a/assets/css/style.css b/assets/css/style.css
new file mode 100644
index 0000000..ce9c407
--- /dev/null
+++ b/assets/css/style.css
@@ -0,0 +1,39 @@
+.slidecontainer {
+    width: 100%;
+}
+
+.slider {
+    -webkit-appearance: none;
+    width: 100%;
+    height: 10px;
+    border-radius: 5px;
+    background: #d3d3d3;
+    outline: none;
+    opacity: 0.7;
+    -webkit-transition: .2s;
+    transition: opacity .2s;
+}
+
+.slider:hover {
+    opacity: 1;
+}
+
+.slider::-webkit-slider-thumb {
+    -webkit-appearance: none;
+    appearance: none;
+    width: 23px;
+    height: 24px;
+    border: 0;
+    background: url('/assets/img/logo_transparent.png');
+    background-size: 100% 100%;
+    cursor: pointer;
+}
+
+.slider::-moz-range-thumb {
+    width: 23px;
+    height: 24px;
+    border: 0;
+    background: url('/assets/img/logo_transparent.png');
+    background-size: 100% 100%;
+    cursor: pointer;
+}
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diff --git a/assets/img/logo.png b/assets/img/logo.png
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diff --git a/assets/img/logo_transparent.png b/assets/img/logo_transparent.png
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index 0000000..99e3126
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diff --git a/assets/img/logo_transparent_small.png b/assets/img/logo_transparent_small.png
new file mode 100644
index 0000000..b57c9e3
Binary files /dev/null and b/assets/img/logo_transparent_small.png differ
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..bc92c3f
--- /dev/null
+++ b/index.html
@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Knastrechner</title>
+    <link rel="stylesheet" href="assets/css/style.css">
+    <script src="assets/calculator.js"></script>
+</head>
+<body>
+<h1>Range Slider Picture</h1>
+
+<div class="slidecontainer">
+    <input type="range" min="1" max="20" value="4" class="slider" id="numRats">
+    <label for="numRats">Anzahl an Ratten
+        <div id="outputNumRats"></div>
+    </label>
+
+
+    <input type="range" min="1" max="4" value="2" class="slider" id="numFullFloors">
+    <label for="numFullFloors">Vollebenen
+        <div id="outputNumFullFloors"></div>
+    </label>
+    <div class="container" id="resultsDiv">
+    </div>
+</div>
+
+<script>
+
+    var outputFailedChecks = document.getElementById("failedChecks");
+
+    var ratSlider = document.getElementById("numRats");
+    var outputNumRats = document.getElementById("outputNumRats");
+    outputNumRats.innerHTML = ratSlider.value;
+
+    ratSlider.oninput = function () {
+        outputNumRats.innerHTML = this.value;
+        update();
+    }
+
+    // Full floor functions
+    var fullFloorSlider = document.getElementById("numFullFloors");
+    var outputNumFullFloors = document.getElementById("outputNumFullFloors");
+    outputNumFullFloors.innerHTML = fullFloorSlider.value;
+
+    fullFloorSlider.oninput = function () {
+        outputNumFullFloors.innerHTML = this.value;
+        update();
+    }
+
+    var savicSuiteRoyaleDim = new Dimensions(1, 0.5, 1);
+
+    function update() {
+        var failed_checks = cageCheck(savicSuiteRoyaleDim, ratSlider.value, fullFloorSlider.value);
+        var resultsDiv = document.getElementById("resultsDiv");
+        resultsDiv.innerHTML = `<strong>Werte</strong>: ${savicSuiteRoyaleDim.toString()} n(rats): ${ratSlider.value}, n(floors): ${fullFloorSlider.value}`;
+
+        const ul = document.createElement('ul');
+        for (const key in failed_checks) {
+            const li = document.createElement('li');
+            li.textContent = failed_checks[key];
+            ul.appendChild(li);
+        }
+
+        resultsDiv.appendChild(ul);
+        outputFailedChecks.innerHTML = failed_checks;
+    }
+
+
+</script>
+
+</body>
+</html>
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