//
// BuildInfo.c - MrsWatson
// Created by Nik Reiman on 1/2/12.
// Copyright (c) 2012 Teragon Audio. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "app/BuildInfo.h"
#include "logging/EventLogger.h"

unsigned long buildInfoGetYear(void)
{
    unsigned long result = 0;
    CharString buildDate = newCharStringWithCapacity(kCharStringLengthShort);
    const char *compilerDate = __DATE__;
    size_t startingIndex = strlen(compilerDate) - 4;
    strncpy(buildDate->data, compilerDate + startingIndex, 4);
    result = (unsigned long)strtol(buildDate->data, NULL, 10);
    freeCharString(buildDate);
    return result;
}

static short _getMonthNumber(const char *abbreviatedMonthName)
{
    if (!strncmp(abbreviatedMonthName, "Jan", 3)) {
        return 1;
    } else if (!strncmp(abbreviatedMonthName, "Feb", 3)) {
        return 2;
    } else if (!strncmp(abbreviatedMonthName, "Mar", 3)) {
        return 3;
    } else if (!strncmp(abbreviatedMonthName, "Apr", 3)) {
        return 4;
    } else if (!strncmp(abbreviatedMonthName, "May", 3)) {
        return 5;
    } else if (!strncmp(abbreviatedMonthName, "Jun", 3)) {
        return 6;
    } else if (!strncmp(abbreviatedMonthName, "Jul", 3)) {
        return 7;
    } else if (!strncmp(abbreviatedMonthName, "Aug", 3)) {
        return 8;
    } else if (!strncmp(abbreviatedMonthName, "Sep", 3)) {
        return 9;
    } else if (!strncmp(abbreviatedMonthName, "Oct", 3)) {
        return 10;
    } else if (!strncmp(abbreviatedMonthName, "Nov", 3)) {
        return 11;
    } else if (!strncmp(abbreviatedMonthName, "Dec", 3)) {
        return 12;
    } else {
        logInternalError("Invalid build month '%s'", abbreviatedMonthName);
        return 0;
    }
}

unsigned long buildInfoGetDatestamp(void)
{
    unsigned long result = buildInfoGetYear() * 10000;

    CharString buffer = newCharStringWithCapacity(kCharStringLengthShort);
    strncpy(buffer->data, __DATE__, 3);
    result += _getMonthNumber(buffer->data) * 100;

    charStringClear(buffer);
    strncpy(buffer->data, __DATE__ + 4, 2);
    result += strtol(buffer->data, NULL, 10);

    freeCharString(buffer);
    return result;
}

CharString buildInfoGetVersionString(void)
{
    CharString result = newCharStringWithCapacity(kCharStringLengthShort);
    snprintf(result->data, result->capacity, "%s version %d.%d.%d",
             PROGRAM_NAME, VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH);
    return result;
}