#include "utils.h"
#include <string.h>
#include <utils/types.h>
#include <mem/heap.h>
#include <utils/util.h>
#include "vector.h"
#include "../gfx/gfxutils.h"
#include "../gfx/gfx.h"
#include "../gfx/menu.h"
#include "../hid/hid.h"
#include "../fs/fsutils.h"

extern int launch_payload(char *path);

void RebootToPayloadOrRcm(){
    if (FileExists("sd:/atmosphere/reboot_payload.bin"))
        launch_payload("sd:/atmosphere/reboot_payload.bin");
    reboot_rcm();
}

char *CpyStr(const char* in){
    int len = strlen(in);
    char *out = malloc(len + 1);
    out[len] = 0;
    memcpy(out, in, len);
    return out;
}

void MaskIn(char *mod, u32 bitstream, char mask){
    u32 len = strlen(mod);
    for (int i = 0; i < len; i++){
        if (!(bitstream & 1))
            *mod = mask;
        
        bitstream >>= 1;
        mod++;
    }
}

// non-zero is yes, zero is no
bool StrEndsWith(char *begin, char *end){
    begin = strrchr(begin, *end);
    if (begin != NULL)
        return !strcmp(begin, end);

    return 0;
}

void WaitFor(u32 ms){
    u32 a = get_tmr_ms();
    while (a + ms > get_tmr_ms());
}

char *lines[] = {
    "1234567890*", // 0 - 10
    "qwertyuiop~", // 11 - 21
    "asdfghjkl.+", // 22 - 32
    "^zxcvbnm_<>" // 33 - 43
};

char *ShowKeyboard(const char *toEdit, u8 alwaysRet){
    char *ret = CpyStr(toEdit);
    int pos = 0;
    int posOnWord = 0;
    bool shift = 0;
    
    gfx_printf("* = exit | ~ = backspace | ^(left) = shift | + = add char\n\n");

    u32 x, y;
    gfx_con_getpos(&x, &y);

    while (1){
        gfx_con_setpos(x, y);
    
        for (int i = 0; i < strlen(ret); i++){
            (i == posOnWord) ? SETCOLOR(COLOR_WHITE, COLOR_VIOLET) : SETCOLOR(COLOR_WHITE, COLOR_DEFAULT);
            gfx_putc(ret[i]);
        }

        RESETCOLOR;
        gfx_putc(' ');

        for (int a = 0; a < 4; a++){
            for (int b = 0; b < 11; b++){
                (pos == ((b % 11) + (a * 11))) ? SETCOLOR(COLOR_DEFAULT, COLOR_WHITE) : SETCOLOR(COLOR_WHITE, COLOR_DEFAULT);
                gfx_con_setpos(x + 16 + (b * 2 * 16), y + a * 16 * 2 + 32);
                if (shift && lines[a][b] >= 'a' && lines[a][b] <= 'z')
                    gfx_putc(lines[a][b] & ~BIT(5));
                else
                    gfx_putc(lines[a][b]);
            }
        }

        Input_t *input = hidWait();
        if (input->buttons & (JoyA | JoyLB | JoyRB)){
            if (pos == 42 || input->l){
                if (posOnWord > 0)
                    posOnWord--;
            }
            else if (pos == 43 || input->r){
                if (strlen(ret) - 1 > posOnWord)
                    posOnWord++;
            }
            else if (pos == 10){
                break;
            }
            else if (pos == 21){
                u32 wordLen = strlen(ret);
                if (!wordLen)
                    continue;

                for (int i = posOnWord; i < wordLen - 1; i++){
                    ret[i] = ret[i + 1];
                }
                ret[wordLen - 1] = 0;
                if (posOnWord > wordLen - 2)
                    posOnWord--;
            }
            else if (pos == 32){
                u32 wordLen = strlen(ret);
                if (wordLen >= 79)
                    continue;
                    
                char *copy = calloc(wordLen + 2, 1);
                memcpy(copy, ret, wordLen);
                copy[wordLen] = 'a';
                free(ret);
                ret = copy;
            }
            else if (pos == 33){
                shift = !shift;
            }
            else {
                char toPut = lines[pos / 11][pos % 11];
                if (shift)
                    toPut &= ~BIT(5);
                ret[posOnWord] = toPut;

                if (strlen(ret) - 1 > posOnWord)
                    posOnWord++;
            }
        }
        int val = (input->up || input->down) ? 11 : 1;

        if (input->buttons & (JoyLLeft | JoyLUp | BtnVolM)){
            if (pos > -1 + val)
                pos -= val;
        }
        if (input->buttons & (JoyLRight | JoyLDown | BtnVolP)){
            if (pos < 44 - val)
                pos += val;
        }

        if (input->b){
            break;
        }
    }
    
    if (!strcmp(ret, toEdit) && !alwaysRet){
        free(ret);
        return NULL;
    }

    return ret;
}