#include <ctype.h>
#include <dirent.h>
#include <limits.h>
#include <linux/limits.h>
#include <ncurses.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/statvfs.h>
#include <sys/types.h>
#include <unistd.h>

#include "display.h"
#include "err.h"
#include "log.h"
#include "mem.h"
#include "stat.h"
#include "version.h"
#include "wm.h"
/* #define PROC_PATH_VERSION "/proc/version" */
/* #define PROC_PATH_MEMINFO "/proc/meminfo" */

/* typedef struct { */
/*     WINDOW* w; */
/*     char name[32]; */
/*     int starty; */
/*     int startx; */
/*     int height; */
/*     int width; */
/* } win_info; */

/* int w_count = 0; */

/* int find_w_by_name(const char* name) { */
/*     for (int i = 0; i < w_count; i++) { */
/*         if (strcmp(windows[i].name, name) != 0) continue; */

/*         return i; */
/*     } */

/*     return -1; */
/* } */
/* void draw_bar(WINDOW* w, const char* label, int maxx, int y, int x, */
/*               unsigned long total, unsigned long ava) { */
/*     int ava_to_draw_x = maxx - STAT_INFO_WIDTH - BAR_LABEL_WIDTH; */
/*     int total_hashes = get_bar_ticks(ava_to_draw_x, total, ava); */
/*     char hashes[2048] = {0}; */

/*     init_pair(COLOR_PAIR_PROGRESS, COLOR_GREEN, COLOR_BLACK); */

/*     if (total_hashes > ava_to_draw_x) total_hashes = ava_to_draw_x; */
/*     memset(hashes, '#', total_hashes); */
/*     hashes[total_hashes] = '\0'; */

/*     mvwprintw(w, y, x, "%-*s [", 4, label); */
/*     wprintw_colorful(w, COLOR_PAIR_PROGRESS, "%.*s", total_hashes, hashes);
 */

/*     int remaining_spaces = ava_to_draw_x - total_hashes; */
/*     if (remaining_spaces > 0) { */
/*         wprintw(w, "%*s", remaining_spaces, ""); */
/*     } */

/*     waddch(w, ']'); */

/*     wrefresh(w); */
/* } */

/* WINDOW* fm_w_init(WINDOW* root_win, int maxy, int maxx) { */
/*     int stat_w_w, stat_w_h, fm_w, fm_h, fm_l_startx, fm_starty, fm_r_startx;
 */

/*     int i = find_w_by_name("stat"); */
/*     if (i == -1) { */
/*         die("Cannot find window \"stat\""); */
/*     } */
/*     stat_w_w = windows[i].width; */
/*     stat_w_h = windows[i].height; */

/*     fm_w = maxx / 2; */
/*     fm_h = maxy - stat_w_h; */
/*     fm_starty = stat_w_h - STAT_BAR_HEIGHT; */

/*     fm_l_startx = 0; */
/*     fm_r_startx = maxx / 2; */
/*     WINDOW* fm_l = derwin(root_win, fm_h, fm_w, fm_starty, 0); */
/*     return fm_l; */
/* } */

/* void fm_load_dir(const char* path) { */
/*     DIR* dir = opendir(path); */
/*     log_write(LOG_INFO, "fm_load_dir: dir = %s", dir); */
/*     struct dirent* entry; */

/*     if (!dir) die("Cannot open dir"); */

/*     while ((entry = readdir(dir)) != NULL) { */
/*         log_write(LOG_INFO, "%s", entry->d_name); */
/*     } */

/*     closedir(dir); */
/* } */

/* char* get_cwd() { */
/*     static char cwd[PATH_MAX]; */
/*     if (getcwd(cwd, sizeof(cwd)) != NULL) { */
/*         return cwd; */
/*     } */

/*     die("Cannot get current working directory"); */
/*     return NULL; */
/* } */

int main() {
    /* char* cwd; */
    int ch;
    log_init();

    terminal* t = ncurses_init();
    stat* s = stat_init();
    stat_get_sysver(s);
    stat_get_diskinfo(s);
    stat_get_meminfo(s);
    stat_get_cpuinfo(s);
    log_write(LOG_INFO, "Terminal maxx = %d, maxy = %d", t->maxy, t->maxx);

    draw_stat_bar(t, s->sysver);

    keypad(ROOT_WIN, TRUE);

    int stat_w_h = t->maxy / 8 < 4 ? 4 : t->maxy / 8;

    window* stat_w = wm_create_new_w(t, "stat", stat_w_h, t->maxx, 0, 0);

    /* cwd = get_cwd(); */

    timeout(100);
    while ((ch = getch()) != 'q') {
        stat_get_meminfo(s);
        stat_get_diskinfo(s);

        int sw_y, sw_x;
        getmaxyx(stat_w->win, sw_y, sw_x);
        wclear(stat_w->win);
        wborder(stat_w->win, ' ', ' ', ' ', '-', ' ', ' ', '-', '-');
        stat_calc_cpuocc(s);
        stat_draw_cpu_bar(stat_w->win, sw_x, 0, 0, s);
        stat_print_cpu_info(stat_w->win, 0, sw_x, s);
        stat_draw_bar(stat_w->win, "Mem", sw_x, 1, 0, s->meminfo.mem_total,
                      s->meminfo.mem_available);
        stat_print_info(stat_w->win, 1, sw_x, "Mem", s->meminfo.mem_total,
                        s->meminfo.mem_available);

        stat_draw_bar(stat_w->win, "Disk", sw_x, 2, 0, s->diskinfo.disk_total,
                      s->diskinfo.disk_available);
        stat_print_info(stat_w->win, 2, sw_x, "Disk", s->diskinfo.disk_total,
                        s->diskinfo.disk_available);
        if (ch == KEY_RESIZE) {
            wclear(t->windows[wm_fd_w_by_name(t, "stat_bar")]->win);
            getmaxyx(stdscr, t->maxy, t->maxx);
            draw_stat_bar(t, s->sysver);
        }

        wm_refresh_all(t);
    }

    endwin();
    return 0;
}