Start of binary search for ls command

src/lib/stores/bash/bash.ts

@@ -105,6 +105,10 @@ export class Bash {
 		return this._terminal.getTerminalWidth();
 	}
 
+	getTerminalFontSize(): number {
+		return this._terminal.getFontSize();
+	}
+
 	hasSudoPerms(uid: number): boolean {
 		return this._group[1].members.includes(uid);
 	}

src/lib/stores/bash/commands/ls.ts

@@ -227,9 +227,24 @@ function result_ls(this: Bash, data: any, args: CommandArgs): HTMLElement {
 		return w;
 	}
 
+
+
 	return dummysonoerror; //TEMP SO NO ERROR CUZ RETURNS HTMLElement EVERY TIME, DELETE LATER
 }
 
+function checkMaxColumns(this: Bash, files: TreeNode[]) {
+	const paddingWidth: number = 2;
+	const maxWidth: number = (this.getTerminalWidth() / this.getTerminalFontSize()) * 0.8;
+
+
+	//Upper bound set to max width / min column width - 1 character + padding
+	let lowBound: number = 1;
+	let highBound: number = Math.floor(maxWidth / (1 + paddingWidth));
+
+	
+
+}
+
 function isValidNodeSortMethod(value: string): value is SortNodeBy {
 	return Object.values(SortNodeBy).includes(value as SortNodeBy);
 }

src/lib/stores/bash/search.ts

@@ -0,0 +1,48 @@
+import type { Bash } from "./bash";
+import type { TreeNode } from "./fs";
+
+export class Search {
+    
+    public static nodeBinarySearch(
+        this: Bash,
+        nodes: TreeNode[],
+        max: number
+    ): number {
+        let low: number = 1;
+        let high: number = nodes.length;
+        let c: number = (low + high) / 2;
+        const nameLengths: number[] = nodes.map(node => node.name.length);
+
+    }
+    
+    private static binarySearchDNC(
+        n: number,  
+        nameLengths: number[], 
+        low: number, 
+        high: number, 
+        max: number): number {
+
+        let c: number = (low + high) / 2; 
+
+        if(low + 1 < high) {
+            for(let i = 0; i < c; i++) {
+                const colSize: number = 
+                    i < (n % c) ? n : n -1;
+            }
+
+            const calculatedWidth: number =
+                nameLengths.reduce((result, value) => result + value) + (c-1) * 2
+                
+            if (calculatedWidth <= max) {
+                low = c;
+                return c;
+            }
+            else {
+                high = c;
+            }
+
+            this.binarySearchDNC(n, nameLengths, low, high, max);
+        }
+    }
+}
+

src/lib/stores/terminal/terminal.ts

@@ -23,6 +23,7 @@ export type PrintData = {
 export type PageCallbacks = {
 	print: (data: PrintData) => void;
 	getWidth: () => number;
+	getFontSize: () => number;
 };
 
 export class Terminal {
@@ -110,6 +111,14 @@ export class Terminal {
 		return width;
 	}
 
+	getFontSize(): number {
+		const size = this.callbacks.getFontSize?.();
+		if(!size) { throw new Error('somehow font size is undefined still after all the checks'); }
+
+		console.log(size);
+		return size;
+	}
+
 	getCwd(): string {
 		const fs: VirtualFS = this.bash.getFs();
 		console.log(fs.getPathByInode(this.bash.getCwd()));

src/modules/Terminal.svelte

@@ -20,11 +20,21 @@
 		if(!e){
 			throw new Error('cant get width of the teminal element. Its null');
 		}
+		//gets an int from padding property value (which is a string) by cutting last 2 letters "px" and parsing to int
 		const padding: number = parseInt(window.getComputedStyle(e, null).getPropertyValue('padding').slice(0, -2));
 		console.log(padding);
 		return e.clientWidth - (padding * 2);
 	}
 
+	function getFontSize() {
+		const e = document.getElementById('cout');
+		if(!e) {
+			throw new Error('cant get font size of the terminal element. its null');
+		}
+		const size: number = parseInt(window.getComputedStyle(e, null).getPropertyValue('font-size').slice(0, -2));
+		return size;
+	}
+
 	function handleInput(e: KeyboardEvent) {
 		switch (e.key) {
 			case 'Enter': {
@@ -54,7 +64,8 @@
 			if (!e) return;
 			printOutput(e, data);
 		},
-		getWidth: getWidth
+		getWidth: getWidth,
+		getFontSize: getFontSize
 	};
 
 	//Test user with basic data so the bash can run