// Include the most common headers from the C standard library
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>

// Include the main libnx system header, for Switch development
#include <switch.h>

// See also libnx swkbd.h.

// This example shows how to use the software keyboard (swkbd) LibraryApplet.

// TextCheck callback, this can be removed when not using TextCheck.
SwkbdTextCheckResult validate_text(char* tmp_string, size_t tmp_string_size) {
    if (strcmp(tmp_string, "bad")==0) {
        strncpy(tmp_string, "Bad string.", tmp_string_size);
        return SwkbdTextCheckResult_Bad;
    }

    return SwkbdTextCheckResult_OK;
}

// Main program entrypoint
int main(int argc, char* argv[])
{
    Result rc=0;

    // This example uses a text console, as a simple way to output text to the screen.
    // If you want to write a software-rendered graphics application,
    //   take a look at the graphics/simplegfx example, which uses the libnx gfx API instead.
    // If on the other hand you want to write an OpenGL based application,
    //   take a look at the graphics/opengl set of examples, which uses EGL instead.
    consoleInit(NULL);

    printf("swkbd example\n");

    consoleUpdate(NULL);

    SwkbdConfig kbd;
    char tmpoutstr[16] = {0};
    rc = swkbdCreate(&kbd, 0);
    printf("swkbdCreate(): 0x%x\n", rc);

    if (R_SUCCEEDED(rc)) {
        // Select a Preset to use, if any.
        swkbdConfigMakePresetDefault(&kbd);
        //swkbdConfigMakePresetPassword(&kbd);
        //swkbdConfigMakePresetUserName(&kbd);
        //swkbdConfigMakePresetDownloadCode(&kbd);

        // Optional, set any text if you want (see swkbd.h).
        //swkbdConfigSetOkButtonText(&kbd, "Submit");
        //swkbdConfigSetLeftOptionalSymbolKey(&kbd, "a");
        //swkbdConfigSetRightOptionalSymbolKey(&kbd, "b");
        //swkbdConfigSetHeaderText(&kbd, "Header");
        //swkbdConfigSetSubText(&kbd, "Sub");
        //swkbdConfigSetGuideText(&kbd, "Guide");

        swkbdConfigSetTextCheckCallback(&kbd, validate_text);//Optional, enable to use TextCheck.

        // Set the initial string if you want.
        //swkbdConfigSetInitialText(&kbd, "Initial");

        // You can set arg fields directly if you want.

        printf("Running swkbdShow...\n");
        rc = swkbdShow(&kbd, tmpoutstr, sizeof(tmpoutstr));
        printf("swkbdShow(): 0x%x\n", rc);

        if (R_SUCCEEDED(rc)) {
            printf("out str: %s\n", tmpoutstr);
        }
        swkbdClose(&kbd);
    }

    printf("Press + to exit.\n");

    // Main loop
    while (appletMainLoop())//This loop will automatically exit when applet requests exit.
    {
        // Scan all the inputs. This should be done once for each frame
        hidScanInput();

        // hidKeysDown returns information about which buttons have been
        // just pressed in this frame compared to the previous one
        u64 kDown = hidKeysDown(CONTROLLER_P1_AUTO);

        if (kDown & KEY_PLUS)
            break; // break in order to return to hbmenu

        // Your code goes here

        // Update the console, sending a new frame to the display
        consoleUpdate(NULL);
    }

    // Deinitialize and clean up resources used by the console (important!)
    consoleExit(NULL);
    return 0;
}