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/*  Starshatter: The Open Source Project
    Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
    Copyright (c) 1997-2006, Destroyer Studios LLC.

    AUTHOR:       John DiCamillo


    OVERVIEW
    ========
    Helper class to find and launch user's default web browser
*/

#include "WebBrowser.h"

// +--------------------------------------------------------------------+

WebBrowser::WebBrowser()
{
    FindDefaultBrowser();
    FindOpenCommand();
}

WebBrowser::~WebBrowser()
{
}

// +--------------------------------------------------------------------+


void
WebBrowser::OpenURL(const char* url)
{
    if (url) {
        char cmdline[256];

        if (command.contains("%1")) {
            strcpy_s(cmdline, command.replace("%1", url).data());
        }
        else {
            strcpy_s(cmdline, Text(command + " " + url).data());
        }

        STARTUPINFO s;
        ZeroMemory(&s, sizeof(s));
        s.cb = sizeof(s);

        PROCESS_INFORMATION pi;
        ZeroMemory(&pi, sizeof(pi));

        if (CreateProcess(NULL, cmdline, 0, 0, 0, 0, 0, 0, &s, &pi)) {
            CloseHandle(pi.hProcess);
            CloseHandle(pi.hThread);
        }
        else {
            ::Print("Unable to launch web browser for url '%s'\n", url);
        }
    }
}

// +--------------------------------------------------------------------+

void
WebBrowser::FindDefaultBrowser()
{
    HKEY  hkey;
    char  value[256] = "";
    DWORD dwSize;

    ZeroMemory(value, 256);

    if (RegOpenKeyEx(HKEY_CLASSES_ROOT,
                ".html",
                0,
                KEY_READ,
                &hkey) == ERROR_SUCCESS) {

        dwSize = 256;
        RegQueryValueEx(hkey,
        "",
        NULL,
        NULL,
        (LPBYTE) value,
        &dwSize);

        RegCloseKey(hkey);

        if (dwSize > 0) {
            ::Print("Default Web Browser: %s\n", value);
            browser = value;
        }
    }
}

// +--------------------------------------------------------------------+

void
WebBrowser::FindOpenCommand()
{
    HKEY  hkey;
    char  value[256] = "";
    DWORD dwSize;

    ZeroMemory(value, 256);

    if (RegOpenKeyEx(HKEY_CLASSES_ROOT,
                browser + "\\shell\\open\\command",
                0,
                KEY_READ,
                &hkey) == ERROR_SUCCESS) {

        dwSize = 256;
        RegQueryValueEx(hkey,
        "",
        NULL,
        NULL,
        (LPBYTE) value,
        &dwSize);

        RegCloseKey(hkey);

        if (dwSize > 0) {
            ::Print("Browser Shell Open Command: %s\n", value);
            command = value;
        }
    }
}

// +--------------------------------------------------------------------+