#include <stdio.h>
#include "defs.h"
#include "visualise.h"

#define CLEARSCREEN() printf("%c%c%c%c", 0x1B, '[', '2', 'J');
#define CURSERHOME() printf("%c%c%d%c%d%c", 0x1B, '[', 0, ';', 0, 'H');
#define CURSERXY(x,y) printf("%c%c%d%c%d%c", 0x1B, '[', y, ';', x, 'H');
#define SETFIELDATTR(x) printf("%c%c%d%c", 0x1B, '[', x, 'm');
#define BOLD 1
#define REVERSE 7
#define RESETFIELDATTR() printf("%c%c%d%c", 0x1B, '[', 0, 'm');


int visualise() {
	struct list_head *lh, *tlh;
	struct __Process *p;
	int i;
	
	if ( Options.continuous ) {
		printf("%3u.%u%% user, %3u.%u%% system, %3u.%u%% nice, %3u.%u%% idle\n", 
				CPULoad.user/10, CPULoad.user%10, CPULoad.system/10, CPULoad.system%10, 
				CPULoad.nice/10, CPULoad.nice%10, CPULoad.idle/10, CPULoad.idle%10);
	
		list_for_each_safe(lh, tlh, &Root) {
			p=list_entry(lh, struct __Process, list);
			if ( !(Options.summarize && !(p->user || p->system)) ) {
				printf("\tPID: %10d, %3u.%u%% user, %3u.%u%% system, (%s)\n", 
					p->pid, p->user/10, p->user%10, p->system/10, p->system%10, p->command);
			}
		}
	
		printf("\n");
		
	}
	else {
		CLEARSCREEN()

		CURSERHOME();
		
		printf("CPU: ");
		SETFIELDATTR(BOLD);
		printf("%3u.%u%% ", CPULoad.user/10, CPULoad.user%10);
		RESETFIELDATTR();
		printf("user, ");
		SETFIELDATTR(BOLD);
		printf("%3u.%u%% ", CPULoad.system/10, CPULoad.system%10);
		RESETFIELDATTR();
		printf("system, ");
		SETFIELDATTR(BOLD);
		printf("%3u.%u%% ", CPULoad.nice/10, CPULoad.nice%10);
		RESETFIELDATTR();
		printf("nice, ");
		SETFIELDATTR(BOLD);
		printf("%3u.%u%% ", CPULoad.idle/10, CPULoad.idle%10);
		RESETFIELDATTR();
		printf("idle\n");
		
		SETFIELDATTR(REVERSE);
		printf("  PID     USER   SYSTEM   COMMAND       ");
		RESETFIELDATTR();
				
		i=3;
		list_for_each_safe(lh, tlh, &Root) {
			p=list_entry(lh, struct __Process, list);
			if ( !(Options.summarize && !(p->user || p->system)) ) {
				CURSERXY(0, i);
				printf("%5d   %3u.%u%%   %3u.%u%%   %-15s\n", 
					p->pid, p->user/10, p->user%10, p->system/10, p->system%10, p->command);
				i++;
			}
		}
	}

	return NERROR;
}