/*
 * Copyright (c) 2019 Stefan Strobel <stefan.strobel@shimatta.net>
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */

/**
 * @file    test_integration_opt.cpp
 * @brief   integration test implementation for the option parser of the shellmatta
 * @author  Stefan Strobel <stefan.strobel@shimatta.net>
 */

#include "test/framework/catch.hpp"
extern "C" {
#include "shellmatta.h"
}
#include <string.h>

static uint32_t write_callCnt = 0u;
static char write_data[1024];
static uint32_t write_length;
static uint32_t cntA = 0u;
static uint32_t cntB = 0u;
static uint32_t cntC = 0u;
static uint32_t cntD = 0u;
static uint32_t cntE = 0u;
static uint32_t cntF = 0u;
static uint32_t cntDef = 0u;
static char *argA = NULL;
static char *argB = NULL;
static char *argC = NULL;
static char *argD = NULL;
static char *argE = NULL;
static char *argF = NULL;
static char *argDef = NULL;
static uint32_t lenA = 0u;
static uint32_t lenB = 0u;
static uint32_t lenC = 0u;
static uint32_t lenD = 0u;
static uint32_t lenE = 0u;
static uint32_t lenF = 0u;
static uint32_t lenDef = 0u;

static void initTestcase(void)
{
    cntA = 0u;
    cntB = 0u;
    cntC = 0u;
    cntD = 0u;
    cntE = 0u;
    cntF = 0u;
    cntDef = 0u;
    argA = NULL;
    argB = NULL;
    argC = NULL;
    argD = NULL;
    argE = NULL;
    argF = NULL;
    argDef = NULL;
    lenA = 0u;
    lenB = 0u;
    lenC = 0u;
    lenD = 0u;
    lenE = 0u;
    lenF = 0u;
    lenDef = 0u;
}

static shellmatta_retCode_t writeFct(const char* data, uint32_t length)
{
    write_callCnt ++;
    while((length > 0) && (write_length < sizeof(write_data)))
    {
        write_data[write_length] = *data;
        data ++;
        length --;
        write_length ++;
    }

    return SHELLMATTA_OK;
}

static shellmatta_retCode_t parseOpts(shellmatta_handle_t handle, const char *arguments, uint32_t length)
{
    (void)      arguments;
    (void)      length;
    char        option;
    char        *argumentString;
    uint32_t    argumentLength;
    uint32_t    optionCount = 0u;

    while(SHELLMATTA_OK == shellmatta_opt(handle, (char*)"abcde:f::", &option, &argumentString, &argumentLength))
    {
        optionCount ++;
        switch(option)
        {
            case 'a':
                cntA ++;
                argA = argumentString;
                lenA = argumentLength;
                break;
            case 'b':
                cntB ++;
                argB = argumentString;
                lenB = argumentLength;
                break;
            case 'c':
                cntC ++;
                argC = argumentString;
                lenC = argumentLength;
                break;
            case 'd':
                cntD ++;
                argD = argumentString;
                lenD = argumentLength;
                break;
            case 'e':
                cntE ++;
                argE = argumentString;
                lenE = argumentLength;
                break;
            case 'f':
                cntF ++;
                argF = argumentString;
                lenF = argumentLength;
                break;
            default:
                cntDef ++;
                argDef = argumentString;
                lenDef = argumentLength;
                break;
        }
    }

    shellmatta_printf(handle, "parseOpts - cnt: %u\r\n", optionCount);

    return SHELLMATTA_OK;
}
shellmatta_cmd_t parseOptsCmd = {(char*)"parseOpts", (char*)"opt", NULL, NULL, parseOpts, NULL};

TEST_CASE( "shellmatta option parser 1" ) {

    shellmatta_instance_t inst;
    shellmatta_handle_t handle;
    char buffer[1024];
    char historyBuffer[1024];
    char *dummyData =   (char*)"parseOpts -a -e meow\r\nparseOpts - cnt: 2\r\n\r\nshellmatta->";

    shellmatta_doInit(  &inst,
                        &handle,
                        buffer,
                        sizeof(buffer),
                        historyBuffer,
                        sizeof(historyBuffer),
                        "shellmatta->",
                        NULL,
                        writeFct);

    initTestcase();
    write_callCnt = 0u;
    memset(write_data, 0, sizeof(write_data));
    write_length = 0u;

    shellmatta_addCmd(handle, &parseOptsCmd);

    shellmatta_processData(handle, (char*)"parseOpts -a -e meow\r", 21);

    CHECK( cntA == 1u );
    CHECK( NULL == argA);
    CHECK( 0u == lenA );
    CHECK( cntE == 1u );
    CHECK(((NULL != argE) && (0u == memcmp(argE, "meow", 4))));
    CHECK( lenE == 4u );
    CHECK( (cntB == 0u && cntC == 0u && cntD == 0u && cntF == 0u && cntDef == 0u) );
    CHECK( write_length == strlen(dummyData));
    REQUIRE( strcmp(dummyData, write_data) == 0);
}

TEST_CASE( "shellmatta option parser 2 - ignore \"--\"" ) {

    shellmatta_instance_t inst;
    shellmatta_handle_t handle;
    char buffer[1024];
    char historyBuffer[1024];
    char *dummyData =   (char*)"parseOpts -a -e meow --\r\nparseOpts - cnt: 2\r\n\r\nshellmatta->";

    shellmatta_doInit(  &inst,
                        &handle,
                        buffer,
                        sizeof(buffer),
                        historyBuffer,
                        sizeof(historyBuffer),
                        "shellmatta->",
                        NULL,
                        writeFct);

    initTestcase();
    write_callCnt = 0u;
    memset(write_data, 0, sizeof(write_data));
    write_length = 0u;

    shellmatta_addCmd(handle, &parseOptsCmd);

    shellmatta_processData(handle, (char*)"parseOpts -a -e meow --\r", 24);

    CHECK( cntA == 1u );
    CHECK( NULL == argA);
    CHECK( 0u == lenA );
    CHECK( cntE == 1u );
    CHECK(((NULL != argE) && (0u == memcmp(argE, "meow", 4))));
    CHECK( lenE == 4u );
    CHECK( (cntB == 0u && cntC == 0u && cntD == 0u && cntF == 0u && cntDef == 0u) );
    CHECK( write_length == strlen(dummyData));
    REQUIRE( strcmp(dummyData, write_data) == 0);
}