// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// Copyright (c) Microsoft Corporation. All rights reserved

#ifndef UNICODE
#define UNICODE
#endif
#include "WebServices.h"
#include "process.h"
#include "stdio.h"
#include "string.h"
#include "SessionBasedCalculatorService.wsdl.h"
// Print out rich error info
void PrintError(
    _In_ HRESULT errorCode, 
    _In_opt_ WS_ERROR* error)
{
    wprintf(L"Failure: errorCode=0x%lx\n", errorCode);

    if (errorCode == E_INVALIDARG || errorCode == WS_E_INVALID_OPERATION)
    {
        // Correct use of the APIs should never generate these errors
        wprintf(L"The error was due to an invalid use of an API.  This is likely due to a bug in the program.\n");
    }

    HRESULT hr = S_OK;
    if (error != NULL)
    {
        ULONG errorCount;
        hr = WsGetErrorProperty(error, WS_ERROR_PROPERTY_STRING_COUNT, &errorCount, sizeof(errorCount));
        if (FAILED(hr))
        {
            goto Exit;
        }
        for (ULONG i = 0; i < errorCount; i++)
        {
            WS_STRING string;
            hr = WsGetErrorString(error, i, &string);
            if (FAILED(hr))
            {
                goto Exit;
            }
            wprintf(L"%.*s\n", string.length, string.chars);
        }
    }
Exit:
    if (FAILED(hr))
    {
        wprintf(L"Could not get error string (errorCode=0x%lx)\n", hr);
    }
}
// Main entry point
int __cdecl wmain()
{
    
    HRESULT hr = S_OK;
    WS_ERROR* error = NULL;
    WS_HEAP* heap = NULL;
    WS_SERVICE_PROXY* proxy = NULL;
    int result = 0;
    WS_ENDPOINT_ADDRESS address = {};
    static const WS_STRING serviceUrl = WS_STRING_VALUE(L"net.tcp://localhost/example"); 
    // Create an error object for storing rich error information
    hr = WsCreateError(
        NULL, 
        0, 
        &error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    // Create a heap to store deserialized data
    hr = WsCreateHeap(
        /*maxSize*/ 2048, 
        /*trimSize*/ 512, 
        NULL, 
        0, 
        &heap, 
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    hr = WsCreateServiceProxy(
        WS_CHANNEL_TYPE_DUPLEX_SESSION, 
        WS_TCP_CHANNEL_BINDING, 
        NULL, 
        NULL, 
        0, 
        NULL,
        0,
        &proxy, 
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
                        
    
    // Initialize address of service
    address.url = serviceUrl;
    hr = WsOpenServiceProxy(
        proxy, 
        &address, 
        NULL, 
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    hr = CalculatorBinding_Add(
        proxy, 
        1, 
        heap, 
        NULL, 
        0, 
        NULL, 
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    wprintf(
        L"+1\n");
    hr = CalculatorBinding_Add(
        proxy, 
        2, 
        heap,
        NULL,
        0, 
        NULL,
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    wprintf(
        L"+2\n");
    
    hr = CalculatorBinding_Add(
        proxy,
        3, 
        heap,
        NULL,
        0,
        NULL,
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    wprintf(
        L"+3\n");
    hr = CalculatorBinding_Add(
        proxy,
        4, 
        heap,
        NULL,
        0, 
        NULL,
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    wprintf(
        L"+4\n");
    hr = CalculatorBinding_Subtract(
        proxy,
        5, 
        heap,
        NULL,
        0,
        NULL,
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    wprintf(
        L"-5\n");
    hr = CalculatorBinding_Total(
        proxy,
        &result,
        heap,
        NULL,
        0,
        NULL,
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
    
    wprintf(
        L"====\n");
    wprintf(
        L"%d\n", result);
    
    hr = CalculatorBinding_Clear(
        proxy,
        heap,
        NULL,
        0,
        NULL,
        error);
    if (FAILED(hr))
    {
        goto Exit;
    }
                   
Exit:
    if (FAILED(hr))
    {
        // Print out the error
        PrintError(hr, error);
    }
    if (proxy != NULL)
    {
        WsCloseServiceProxy(
            proxy, 
            NULL, 
            NULL);
    
        WsFreeServiceProxy(
            proxy);
    }
    
    
    if (heap != NULL)
    {
        WsFreeHeap(heap);
    }
    if (error != NULL)
    {
        WsFreeError(error);
    }
    fflush(stdout);
    return SUCCEEDED(hr) ? 0 : -1;
}