add: color cmd

src/shell/commands/color_cmd.c

@@ -0,0 +1,36 @@
+#include "kprintf.h"
+#include "string.h"
+#include "terminal.h"
+#include <stdint.h>
+
+#define ARRAY_SIZE(array) sizeof(array) / sizeof(array[0])
+
+void color_cmd(char *arg)
+{
+	uint8_t tmp_color;
+	static const char *colors[] = {
+	    "BLACK",     "BLUE",          "GREEN",        "CYAN",
+	    "RED",       "MAGENTA",       "BROWN",        "LIGHT_GREY",
+	    "DARK_GREY", "LIGHT_BLUE",    "LIGHT_GREEN",  "LIGHT_CYAN",
+	    "LIGHT_RED", "LIGHT_MAGENTA", "LIGHT_YELLOW", "WHITE",
+	};
+	for (size_t i = 0; i < ARRAY_SIZE(colors); i++) {
+		if (strcmp(colors[i], arg) == 0) {
+			terminal_change_default_fg_color(i);
+			return;
+		}
+	}
+	tmp_color = terminal_get_default_color();
+	kprintf(KERN_WARNING "Invalid argument\navailable color: ");
+	for (size_t i = 0; i < ARRAY_SIZE(colors); i++) {
+		terminal_set_default_fg_color(i);
+		// Unai the STRING MERGE argument of kprintf cause me a
+		// cramptissue. I lost all my skibidi aura to fix it but it work
+		// (;
+		kprintf(colors[i]);
+		if (i != ARRAY_SIZE(colors) - 1)
+			kprintf(", ");
+	}
+	terminal_set_default_fg_color(tmp_color);
+	kprintf("\n");
+}