/*
 * 86Box	A hypervisor and IBM PC system emulator that specializes in
 *		running old operating systems and software designed for IBM
 *		PC systems and compatibles from 1981 through fairly recent
 *		system designs based on the PCI bus.
 *
 *		This file is part of the 86Box distribution.
 *
 *		Windows device configuration dialog implementation.
 *
 *
 *
 * Authors:	Sarah Walker, <http://pcem-emulator.co.uk/>
 *		Miran Grca, <mgrca8@gmail.com>
 *
 *		Copyright 2008-2018 Sarah Walker.
 *		Copyright 2016-2018 Miran Grca.
 */
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <86box/86box.h>
#include <86box/config.h>
#include <86box/device.h>
#include <86box/plat.h>
#include <86box/midi_rtmidi.h>
#include <86box/ui.h>
#include <86box/win.h>
#include <windowsx.h>


static device_context_t config_device;

static uint8_t deviceconfig_changed = 0;


#if defined(__amd64__) || defined(__aarch64__)
static LRESULT CALLBACK
#else
static BOOL CALLBACK
#endif
deviceconfig_dlgproc(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    HWND h;

    int val_int, id, c, d, num;
    int changed, cid;
    const device_config_t *config;
    const device_config_selection_t *selection;
    char s[512], file_filter[512];
    char *str;
    wchar_t ws[512], *wstr;
    LPTSTR lptsTemp;

    config = config_device.dev->config;

    switch (message) {
	case WM_INITDIALOG:
		id = IDC_CONFIG_BASE;
		config = config_device.dev->config;

		lptsTemp = (LPTSTR) malloc(512);

		while (config->type != -1) {
			selection = config->selection;
			h = GetDlgItem(hdlg, id);

			switch (config->type) {
				case CONFIG_BINARY:
					val_int = config_get_int((char *) config_device.name,
								 (char *) config->name, config->default_int);

					SendMessage(h, BM_SETCHECK, val_int, 0);

					id++;
					break;
				case CONFIG_SELECTION:
					val_int = config_get_int((char *) config_device.name,
								 (char *) config->name, config->default_int);

					c = 0;
					while (selection->description && selection->description[0]) {
						mbstowcs(lptsTemp, selection->description,
							 strlen(selection->description) + 1);
						SendMessage(h, CB_ADDSTRING, 0, (LPARAM)(LPCSTR)lptsTemp);
						if (val_int == selection->value)
							SendMessage(h, CB_SETCURSEL, c, 0);
						selection++;
						c++;
					}

					id += 2;
					break;
				case CONFIG_MIDI:
					val_int = config_get_int((char *) config_device.name,
								 (char *) config->name, config->default_int);

					num  = rtmidi_get_num_devs();
					for (c = 0; c < num; c++) {
						rtmidi_get_dev_name(c, s);
						mbstowcs(lptsTemp, s, strlen(s) + 1);
						SendMessage(h, CB_ADDSTRING, 0, (LPARAM)(LPCSTR)lptsTemp);
						if (val_int == c)
							SendMessage(h, CB_SETCURSEL, c, 0);
					}

					id += 2;
					break;
				case CONFIG_MIDI_IN:
					val_int = config_get_int((char *) config_device.name,
								 (char *) config->name, config->default_int);

					num  = rtmidi_in_get_num_devs();
					for (c = 0; c < num; c++) {
						rtmidi_in_get_dev_name(c, s);
						mbstowcs(lptsTemp, s, strlen(s) + 1);
						SendMessage(h, CB_ADDSTRING, 0, (LPARAM)(LPCSTR)lptsTemp);
						if (val_int == c)
							SendMessage(h, CB_SETCURSEL, c, 0);
					}

					id += 2;
					break;					
				case CONFIG_SPINNER:
					val_int = config_get_int((char *) config_device.name,
								 (char *) config->name, config->default_int);

					_swprintf(ws, L"%i", val_int);
					SendMessage(h, WM_SETTEXT, 0, (LPARAM)ws);

					id += 2;
					break;
				case CONFIG_FNAME:
					wstr = config_get_wstring((char *) config_device.name,
								 (char *) config->name, 0);
					if (wstr)
						SendMessage(h, WM_SETTEXT, 0, (LPARAM)wstr);
					id += 3;
					break;
				case CONFIG_HEX16:
					val_int = config_get_hex16((char *) config_device.name,
								   (char *) config->name, config->default_int);

					c = 0;
					while (selection->description && selection->description[0]) {
						mbstowcs(lptsTemp, selection->description,
							 strlen(selection->description) + 1);
						SendMessage(h, CB_ADDSTRING, 0, (LPARAM)(LPCSTR)lptsTemp);
						if (val_int == selection->value)
							SendMessage(h, CB_SETCURSEL, c, 0);
						selection++;
						c++;
					}

					id += 2;
					break;
				case CONFIG_HEX20:
					val_int = config_get_hex20((char *) config_device.name,
								   (char *) config->name, config->default_int);

					c = 0;
					while (selection->description && selection->description[0]) {
						mbstowcs(lptsTemp, selection->description,
							 strlen(selection->description) + 1);
						SendMessage(h, CB_ADDSTRING, 0, (LPARAM)(LPCSTR)lptsTemp);
						if (val_int == selection->value)
							SendMessage(h, CB_SETCURSEL, c, 0);
						selection++;
						c++;
					}

					id += 2;
					break;
			}
			config++;
		}
		free(lptsTemp);
		return TRUE;
	case WM_COMMAND:
		cid = LOWORD(wParam);
		if (cid == IDOK) {
			id = IDC_CONFIG_BASE;
			config = config_device.dev->config;
			changed = 0;
			char s[512];

			while (config->type != -1) {
				const device_config_selection_t *selection = config->selection;
				h = GetDlgItem(hdlg, id);

				switch (config->type) {
					case CONFIG_BINARY:
						val_int = config_get_int((char *) config_device.name,
									 (char *) config->name, config->default_int);

						if (val_int != SendMessage(h, BM_GETCHECK, 0, 0))
							changed = 1;

						id++;
						break;
					case CONFIG_SELECTION:
						val_int = config_get_int((char *) config_device.name,
									 (char *) config->name, config->default_int);

						c = SendMessage(h, CB_GETCURSEL, 0, 0);

						for (; c > 0; c--)
							selection++;

						if (val_int != selection->value)
							changed = 1;

						id += 2;
						break;
					case CONFIG_MIDI:
						val_int = config_get_int((char *) config_device.name,
									 (char *) config->name, config->default_int);

						c = SendMessage(h, CB_GETCURSEL, 0, 0);

						if (val_int != c)
							changed = 1;

						id += 2;
						break;
					case CONFIG_MIDI_IN:
						val_int = config_get_int((char *) config_device.name,
									 (char *) config->name, config->default_int);

						c = SendMessage(h, CB_GETCURSEL, 0, 0);

						if (val_int != c)
							changed = 1;

						id += 2;
						break;
					case CONFIG_FNAME:
						str = config_get_string((char *) config_device.name,
									(char *) config->name, (char*)"");
						SendMessage(h, WM_GETTEXT, 511, (LPARAM)s);
						if (strcmp(str, s))
							changed = 1;

						id += 3;
						break;
					case CONFIG_SPINNER:
						val_int = config_get_int((char *) config_device.name,
									 (char *) config->name, config->default_int);
						if (val_int > config->spinner.max)
							val_int = config->spinner.max;
						else if (val_int < config->spinner.min)
							val_int = config->spinner.min;

						SendMessage(h, WM_GETTEXT, 79, (LPARAM)ws);
						wcstombs(s, ws, 512);
						sscanf(s, "%i", &c);

						if (val_int != c)
							changed = 1;

						id += 2;
						break;
					case CONFIG_HEX16:
						val_int = config_get_hex16((char *) config_device.name,
									   (char *) config->name, config->default_int);

						c = SendMessage(h, CB_GETCURSEL, 0, 0);

						for (; c > 0; c--)
							selection++;

						if (val_int != selection->value)
							changed = 1;

						id += 2;
						break;
					case CONFIG_HEX20:
						val_int = config_get_hex20((char *) config_device.name,
									   (char *) config->name, config->default_int);

						c = SendMessage(h, CB_GETCURSEL, 0, 0);

						for (; c > 0; c--)
							selection++;

						if (val_int != selection->value)
							changed = 1;

						id += 2;
						break;
				}
				config++;
			}

			if (!changed) {
				deviceconfig_changed = 0;
				EndDialog(hdlg, 0);
				return TRUE;
			}

			deviceconfig_changed = 1;

			id = IDC_CONFIG_BASE;
			config = config_device.dev->config;

			while (config->type != -1) {
				selection = config->selection;
				h = GetDlgItem(hdlg, id);

				switch (config->type) {
					case CONFIG_BINARY:
						config_set_int((char *) config_device.name,
							       (char *) config->name, SendMessage(h, BM_GETCHECK, 0, 0));

						id++;
						break;
					case CONFIG_SELECTION:
						c = SendMessage(h, CB_GETCURSEL, 0, 0);
						for (; c > 0; c--)
							selection++;
						config_set_int((char *) config_device.name, (char *) config->name, selection->value);

						id += 2;
						break;
					case CONFIG_MIDI:
						c = SendMessage(h, CB_GETCURSEL, 0, 0);
						config_set_int((char *) config_device.name, (char *) config->name, c);

						id += 2;
						break;
					case CONFIG_MIDI_IN:
						c = SendMessage(h, CB_GETCURSEL, 0, 0);
						config_set_int((char *) config_device.name, (char *) config->name, c);

						id += 2;
						break;
					case CONFIG_FNAME:
						SendMessage(h, WM_GETTEXT, 511, (LPARAM)ws);
						config_set_wstring((char *) config_device.name, (char *) config->name, ws);

						id += 3;
						break;
					case CONFIG_SPINNER:
						SendMessage(h, WM_GETTEXT, 79, (LPARAM)ws);
						wcstombs(s, ws, 512);
						sscanf(s, "%i", &c);
						if (c > config->spinner.max)
							c = config->spinner.max;
						else if (c < config->spinner.min)
							c = config->spinner.min;

						config_set_int((char *) config_device.name, (char *) config->name, c);

						id += 2;
						break;
					case CONFIG_HEX16:
						c = SendMessage(h, CB_GETCURSEL, 0, 0);
						for (; c > 0; c--)
							selection++;
						config_set_hex16((char *) config_device.name, (char *) config->name, selection->value);

						id += 2;
						break;
					case CONFIG_HEX20:
						c = SendMessage(h, CB_GETCURSEL, 0, 0);
						for (; c > 0; c--)
							selection++;
						config_set_hex20((char *) config_device.name, (char *) config->name, selection->value);

						id += 2;
						break;
				}
				config++;
			}

			EndDialog(hdlg, 0);
			return TRUE;
		} else if (cid == IDCANCEL) {
			deviceconfig_changed = 0;
			EndDialog(hdlg, 0);
			return TRUE;
		} else {
			id = IDC_CONFIG_BASE;
			while (config->type != -1) {
				switch (config->type) {
					case CONFIG_BINARY:
						id++;
						break;
					case CONFIG_SELECTION:
					case CONFIG_MIDI:
					case CONFIG_MIDI_IN:
					case CONFIG_SPINNER:
						id += 2;
						break;
					case CONFIG_FNAME:
						if (cid == id+1) {
							s[0] = 0;
							h = GetDlgItem(hdlg, id);
							SendMessage(h, WM_GETTEXT, 511, (LPARAM)s);
							file_filter[0] = 0;

							strcat(file_filter, config->file_filter);
							strcat(file_filter, "|All files (*.*)|*.*|");
							mbstowcs(ws, file_filter, strlen(file_filter) + 1);
							d = strlen(file_filter);

							/* replace | with \0 */
							for (c = 0; c < d; ++c) {
								if (ws[c] == L'|')
									ws[c] = 0;
							}

							if (!file_dlg(hdlg, ws, s, NULL, 0))
								SendMessage(h, WM_SETTEXT, 0, (LPARAM)wopenfilestring);
						}
						break;
				}
				config++;
			}
		}
		break;
    }
    return FALSE;
}


uint8_t
deviceconfig_inst_open(HWND hwnd, const device_t *device, int inst)
{
    const device_config_t *config = device->config;
    uint16_t *data_block;
    uint16_t *data;
    DLGTEMPLATE *dlg;
    DLGITEMTEMPLATE *item;

    data_block = malloc(16384);
    dlg = (DLGTEMPLATE *)data_block;
    int y = 10;
    int id = IDC_CONFIG_BASE;

    deviceconfig_changed = 0;

    memset(data_block, 0, 16384);

    dlg->style = DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | WS_POPUP | WS_CAPTION | WS_SYSMENU;
    dlg->x  = 10;
    dlg->y  = 10;
    dlg->cx = 220;
    dlg->cy = 70;

    data = (uint16_t *)(dlg + 1);

    *data++ = 0; /*no menu*/
    *data++ = 0; /*predefined dialog box class*/

    data += wsprintf(data, plat_get_string(IDS_2141), device->name) + 1;

    *data++ = 9; /*Point*/
    data += MultiByteToWideChar(CP_ACP, 0, "Segoe UI", -1, data, 120);

    if (((uintptr_t)data) & 2)
	data++;

    while (config->type != -1) {
	switch (config->type) {
		case CONFIG_BINARY:
			item = (DLGITEMTEMPLATE *)data;
			item->x = 10;
			item->y = y;
			item->id = id++;

			item->cx = 80;
			item->cy = 15;

			item->style = WS_CHILD | WS_VISIBLE | BS_AUTOCHECKBOX;

			data = (uint16_t *)(item + 1);
			*data++ = 0xFFFF;
			*data++ = 0x0080;    /* button class */

			data += MultiByteToWideChar(CP_ACP, 0, config->description, -1, data, 256);
			*data++ = 0;              /* no creation data */

			y += 20;
			break;

		case CONFIG_SELECTION:
		case CONFIG_MIDI:
		case CONFIG_MIDI_IN:
		case CONFIG_HEX16:
		case CONFIG_HEX20:
			/*Combo box*/
			item = (DLGITEMTEMPLATE *)data;
			item->x = 70;
			item->y = y;
			item->id = id++;

			item->cx = 140;
			item->cy = 150;

			item->style = WS_CHILD | WS_VISIBLE | CBS_DROPDOWNLIST | WS_VSCROLL;

			data = (uint16_t *)(item + 1);
			*data++ = 0xFFFF;
			*data++ = 0x0085;    /* combo box class */

			data += MultiByteToWideChar(CP_ACP, 0, config->description, -1, data, 256);
			*data++ = 0;              /* no creation data */

			if (((uintptr_t)data) & 2)
				data++;

			/*Static text*/
			item = (DLGITEMTEMPLATE *)data;
			item->x = 10;
			item->y = y + 2;
			item->id = id++;

			item->cx = 60;
			item->cy = 20;

			item->style = WS_CHILD | WS_VISIBLE;

			data = (uint16_t *)(item + 1);
			*data++ = 0xFFFF;
			*data++ = 0x0082;    /* static class */

			data += MultiByteToWideChar(CP_ACP, 0, config->description, -1, data, 256);
			*data++ = 0;              /* no creation data */

			if (((uintptr_t)data) & 2)
				data++;

			y += 20;
			break;
		case CONFIG_SPINNER:
			/*Spinner*/
			item = (DLGITEMTEMPLATE *)data;
			item->x = 70;
			item->y = y;
			item->id = id++;

			item->cx = 140;
			item->cy = 14;

			item->style = WS_CHILD | WS_VISIBLE | ES_AUTOHSCROLL | ES_NUMBER;
			item->dwExtendedStyle = WS_EX_CLIENTEDGE;

			data = (uint16_t *)(item + 1);
			*data++ = 0xFFFF;
			*data++ = 0x0081;    /* edit text class */

			data += MultiByteToWideChar(CP_ACP, 0, "", -1, data, 256);
			*data++ = 0;              /* no creation data */

			if (((uintptr_t)data) & 2)
				data++;

			/* TODO: add up down class */
			/*Static text*/
			item = (DLGITEMTEMPLATE *)data;
			item->x = 10;
			item->y = y + 2;
			item->id = id++;

			item->cx = 60;
			item->cy = 20;

			item->style = WS_CHILD | WS_VISIBLE;

			data = (uint16_t *)(item + 1);
			*data++ = 0xFFFF;
			*data++ = 0x0082;    /* static class */

			data += MultiByteToWideChar(CP_ACP, 0, config->description, -1, data, 256);
			*data++ = 0;              /* no creation data */

			if (((uintptr_t)data) & 2)
				data++;

			y += 20;
			break;
		case CONFIG_FNAME:
			/*File*/
			item = (DLGITEMTEMPLATE *)data;
			item->x = 70;
			item->y = y;
			item->id = id++;

			item->cx = 100;
			item->cy = 14;

			item->style = WS_CHILD | WS_VISIBLE | ES_READONLY;
			item->dwExtendedStyle = WS_EX_CLIENTEDGE;

			data = (uint16_t *)(item + 1);
			*data++ = 0xFFFF;
			*data++ = 0x0081;    /* edit text class */

			data += MultiByteToWideChar(CP_ACP, 0, "", -1, data, 256);
			*data++ = 0;              /* no creation data */

			if (((uintptr_t)data) & 2)
				data++;

			/* Button */
			item = (DLGITEMTEMPLATE *)data;
			item->x = 175;
			item->y = y;
			item->id = id++;

			item->cx = 35;
			item->cy = 14;

			item->style = WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON;

			data = (uint16_t *)(item + 1);
			*data++ = 0xFFFF;
			*data++ = 0x0080;    /* button class */

			data += MultiByteToWideChar(CP_ACP, 0, "Browse", -1, data, 256);
			*data++ = 0;              /* no creation data */

			if (((uintptr_t)data) & 2)
				data++;

			/*Static text*/
			item = (DLGITEMTEMPLATE *)data;
			item->x = 10;
			item->y = y + 2;
			item->id = id++;

			item->cx = 60;
			item->cy = 20;

			item->style = WS_CHILD | WS_VISIBLE;

			data = (uint16_t *)(item + 1);
			*data++ = 0xFFFF;
			*data++ = 0x0082;    /* static class */

			data += MultiByteToWideChar(CP_ACP, 0, config->description, -1, data, 256);
			*data++ = 0;              /* no creation data */

			if (((uintptr_t)data) & 2)
				data++;

			y += 20;
			break;
	}

	if (((uintptr_t)data) & 2)
		data++;

	config++;
    }

    dlg->cdit = (id - IDC_CONFIG_BASE) + 2;

    item = (DLGITEMTEMPLATE *)data;
    item->x = 100;
    item->y = y + 5;
    item->cx = 50;
    item->cy = 14;
    item->id = IDOK;  /* OK button identifier */
    item->style = WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON;

    data = (uint16_t *)(item + 1);
    *data++ = 0xFFFF;
    *data++ = 0x0080;    /* button class */

    data += MultiByteToWideChar(CP_ACP, 0, "OK", -1, data, 50);
    *data++ = 0;              /* no creation data */

    if (((uintptr_t)data) & 2)
	data++;

    item = (DLGITEMTEMPLATE *)data;
    item->x = 160;
    item->y = y + 5;
    item->cx = 50;
    item->cy = 14;
    item->id = IDCANCEL;  /* OK button identifier */
    item->style = WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON;

    data = (uint16_t *)(item + 1);
    *data++ = 0xFFFF;
    *data++ = 0x0080;    /* button class */

    data += MultiByteToWideChar(CP_ACP, 0, "Cancel", -1, data, 50);
    *data++ = 0;              /* no creation data */

    dlg->cy = y + 25;

    device_set_context(&config_device, device, inst);

    DialogBoxIndirect(hinstance, dlg, hwnd, deviceconfig_dlgproc);

    free(data_block);

    return deviceconfig_changed;
}


uint8_t
deviceconfig_open(HWND hwnd, const device_t *device)
{
    return deviceconfig_inst_open(hwnd, device, 0);
}