#include <windows.h>

#include "units.h"
#include "spells.h"
#include "buildings.h"

LRESULT CALLBACK WinProc (HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK FoundProc (HWND, UINT, WPARAM, LPARAM);

int DrawButtons(HWND hFound, char* pic_path, int x, int y);
int DrawBackground(HWND hwnd);

char szAppName[ ] = "PathFinder";
char szFoundName[ ] = "Found...";

int WINAPI WinMain (HINSTANCE hThisInstance,
                    HINSTANCE hPrevInstance,
                    LPSTR lpszArgument,
                    int nFunsterStil)

{
    HWND hwnd;             
    MSG messages;          
    WNDCLASSEX wincl;      

    wincl.hInstance = hThisInstance;
    wincl.lpszClassName = szAppName;
    wincl.lpfnWndProc = WinProc;    
    wincl.style = CS_DBLCLKS;               
    wincl.cbSize = sizeof (WNDCLASSEX);
    wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
    wincl.lpszMenuName = NULL;        
    wincl.cbClsExtra = 0;          
    wincl.cbWndExtra = 0;
    wincl.hbrBackground = (HBRUSH) 19;

    if (!RegisterClassEx (&wincl))
        return 0;

    //Found-Window structs
    wincl.hbrBackground       = (HBRUSH) 19;
    wincl.hIcon               = NULL;
    wincl.lpfnWndProc         = FoundProc;
    wincl.lpszClassName       = szFoundName;

    if (!RegisterClassEx (&wincl))
        return 0;

    hwnd = CreateWindowEx (
           0,                 
           szAppName,     
           "PathFinder",      
           WS_OVERLAPPED | WS_SYSMENU, 
           380,      
           240,      
           450,                
           300,               
           HWND_DESKTOP,       
           NULL,               
           hThisInstance,     
           NULL                 
           );

    ShowWindow (hwnd, nFunsterStil); 

    while (GetMessage (&messages, NULL, 0, 0))
    {
        TranslateMessage(&messages);
        DispatchMessage(&messages);
    }

    return messages.wParam;
}

LRESULT CALLBACK WinProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    HWND hSearch;
    HWND hEnter;
    HWND hFound;

    switch (message)             
    {
        case WM_COMMAND:
        {

            if (lParam == (LPARAM)hEnter)
            {

                if (HIWORD(wParam) == BN_CLICKED)
                {
                    char* szSearch;
                    int Ergebniss = 0;

                    int iLength;

                    iLength = GetWindowTextLength(hSearch);

                    GetWindowText(hSearch, szSearch, iLength+1);

                    Ergebniss = unit_search(szSearch);

                    if(Ergebniss != 0)
                    {             
                         MessageBox (NULL, "Gefunden"  , "Info", MB_ICONINFORMATION);
                    }
                    else
                    {
                        MessageBox (NULL, "Nicht gefunden :-( "  , "Info", MB_ICONINFORMATION);
                    }        
                    free(szSearch);
                }
            }        
            break;
        }

        case WM_CREATE:
        {
            DrawBackground(hwnd);

            //Create the Inputbox
            char* szSearch = NULL;

            hSearch = CreateWindowEx(WS_EX_CLIENTEDGE,
                                   "edit",
                                   szSearch,    // <- das ist der Inhalt der Editfelds
                                   WS_CHILD | WS_VISIBLE | ES_MULTILINE,
                                   35, 40, 120, 22,
                                   hwnd,
                                   NULL,
                                   ((LPCREATESTRUCT) lParam) -> hInstance,
                                   NULL);
            free(szSearch);

            //Create the Enter-Button                       
            hEnter = CreateWindow(  "button",
                                  "Search!",
                                  WS_CHILD | WS_VISIBLE,
                                  60, 80, 70, 22,
                                  hwnd,
                                  NULL,
                                  ((LPCREATESTRUCT) lParam) -> hInstance,
                                  NULL);

            //Create the Found-Window
            hFound = CreateWindow(  szFoundName,
                                 NULL,
                                 WS_CHILD | WS_VISIBLE | WS_DLGFRAME | WS_VSCROLL |
                                 ES_AUTOVSCROLL,
                                 200,
                                 5,
                                 230,
                                 248,
                                 hwnd,
                                 NULL,
                                 ((LPCREATESTRUCT) lParam)->hInstance,
                                 NULL);

            break;
        }
        case WM_SIZE:
        {
            DrawBackground(hwnd);
            break;
        }                
        case WM_DESTROY:
            PostQuitMessage (0);       
            break;
        default:                  
            return DefWindowProc (hwnd, message, wParam, lParam);
    }

    return 0;
}

//Found-Window
LRESULT CALLBACK FoundProc (HWND hFound, UINT message, WPARAM wParam, LPARAM lParam)
{    
    switch (message)             
    {
        case WM_CREATE:
        {
            DrawButtons(hFound, "Human.bmp", 250, 50);
            break;
        }    
        case WM_DESTROY:
            PostQuitMessage (0);       
            break;
        default:                  
            return DefWindowProc (hFound, message, wParam, lParam);
    }
}

//Draws the buttons in the Scroll-Window
int DrawButtons(HWND hFound, char* pic_path, int x, int y)
{
    HANDLE hButton = LoadImage(NULL,pic_path,IMAGE_BITMAP,0,0,LR_LOADFROMFILE);
    HDC hdc = GetWindowDC(hFound);
    HDC hdc_ram = CreateCompatibleDC(NULL);
    SelectObject(hdc_ram, hButton);
    BitBlt(hdc, y, x, 30, 30, hdc_ram, 0, 0, SRCCOPY);

    return 0;
}

//Draws the background in the Main-Window
int DrawBackground(HWND hwnd)
{
    HANDLE hbitmap = LoadImage(NULL,"GFX\\Background_wc3.bmp",IMAGE_BITMAP,0,0,LR_LOADFROMFILE);
    HDC hdc = GetWindowDC(hwnd);
    HDC hdc_ram = CreateCompatibleDC(NULL);
    SelectObject(hdc_ram, hbitmap);
    BitBlt(hdc, 0, 30, 400, 280, hdc_ram, 0, 0, SRCCOPY);

    return 0;
}

LRESULT CALLBACK WinProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    static HWND hSearch;
    static HWND hEnter;
    static HWND hFound;