#include <stdio.h>
#include "../src/pattern/51Degrees.h"

// Global settings and properties.
static fiftyoneDegreesProvider provider;

// Function declarations.
static void reportDatasetInitStatus(
    fiftyoneDegreesDataSetInitStatus status,
    const char* fileName);

const char* getIsMobile(fiftyoneDegreesWorkset* ws);
void run(fiftyoneDegreesProvider* provider);

int main(int argc, char* argv[]) {
    const char* properties = "IsMobile";
    const char* fileName = argc > 1 ? argv[1] : "../../../data/51Degrees-LiteV3.2.dat";
    
#ifdef _DEBUG
#ifndef _MSC_VER
    dmalloc_debug_setup("log-stats,log-non-free,check-fence,log=dmalloc.log");
#endif
#endif

    // Create a pool of 4 worksets with a cache for 1000 items.
    fiftyoneDegreesDataSetInitStatus status =
        fiftyoneDegreesInitProviderWithPropertyString(
        fileName, &provider, properties, 4, 1000);
    if (status != DATA_SET_INIT_STATUS_SUCCESS) {
        reportDatasetInitStatus(status, fileName);
        fgetc(stdin);
        return 1;
    }

    run(&provider);

    // Free the pool, dataset and cache.
    fiftyoneDegreesProviderFree(&provider);

#ifdef _DEBUG
#ifdef _MSC_VER
    _CrtDumpMemoryLeaks();
#else
    printf("Log file is %s\r\n", dmalloc_logpath);
#endif
#endif

    // Wait for a character to be pressed.
    fgetc(stdin);

    return 0;
}

void run(fiftyoneDegreesProvider* provider) {
    const char* isMobile;
    fiftyoneDegreesWorkset *ws = NULL;

    // User-Agent string of an iPhone mobile device.
    const char* mobileUserAgent = ("Mozilla/5.0 (iPhone; CPU iPhone OS 7_1 like Mac OS X) "
        "AppleWebKit/537.51.2 (KHTML, like Gecko) 'Version/7.0 Mobile/11D167 "
        "Safari/9537.53");

    // User-Agent string of Firefox Web browser version 41 on desktop.
    const char* desktopUserAgent = ("Mozilla/5.0 (Windows NT 6.3; WOW64; rv:41.0) "
        "Gecko/20100101 Firefox/41.0");

    // User-Agent string of a MediaHub device.
    const char* mediaHubUserAgent = ("Mozilla/5.0 (Linux; Android 4.4.2; X7 Quad Core "
        "Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 "
        "Chrome/30.0.0.0 Safari/537.36");

    printf("Starting Getting Started Example.\n");

    // Get a workset from the pool to perform this match.
    ws = fiftyoneDegreesProviderWorksetGet(provider);

    printf("\nMobile User-Agent: %s\n", mobileUserAgent);
    // Carries out a match for a mobile User-Agent.
    fiftyoneDegreesMatch(ws, mobileUserAgent);
    isMobile = getIsMobile(ws);
    printf("   IsMobile: %s\n", isMobile);

    // Release workset after match complete and workset no longer required.
    fiftyoneDegreesWorksetRelease(ws);

    // Get a workset from the pool to perform this match.
    ws = fiftyoneDegreesProviderWorksetGet(provider);

    // Carries out a match for a desktop User-Agent.
    printf("\n Desktop User-Agent: %s\n", desktopUserAgent);
    fiftyoneDegreesMatch(ws, desktopUserAgent);
    isMobile = getIsMobile(ws);
    printf("   IsMobile: %s\n", isMobile);

    // Release workset after match complete and workset no longer required.
    fiftyoneDegreesWorksetRelease(ws);

    // Get a workset from the pool to perform this match.
    ws = fiftyoneDegreesProviderWorksetGet(provider);

    // Carries out a match for a MediaHub User-Agent.
    printf("\n Media hub User-Agent: %s\n", mediaHubUserAgent);
    fiftyoneDegreesMatch(ws, mediaHubUserAgent);
    isMobile = getIsMobile(ws);
    printf("   IsMobile: %s\n", isMobile);

    // Release workset after match complete and workset no longer required.
    fiftyoneDegreesWorksetRelease(ws);
}

/**
 * Returns a string representation of the value associated with the IsMobile
 * property.
 * @param initialised workset of type fiftyoneDegreesWorkset
 * @returns a string representation of the value for IsMobile
 */
const char* getIsMobile(fiftyoneDegreesWorkset* ws) {
    int32_t requiredPropertyIndex;
    const char* isMobile;
    const fiftyoneDegreesAsciiString* valueName;
    const char* property = "IsMobile";

    requiredPropertyIndex = fiftyoneDegreesGetRequiredPropertyIndex(ws->dataSet, property);
    fiftyoneDegreesSetValues(ws, requiredPropertyIndex);
    valueName = fiftyoneDegreesGetString(ws->dataSet, ws->values[0]->nameOffset);
    isMobile = &(valueName->firstByte);
    return isMobile;
}

/**
* Reports the status of the data file initialization.
*/
static void reportDatasetInitStatus(fiftyoneDegreesDataSetInitStatus status,
    const char* fileName) {
    switch (status) {
    case DATA_SET_INIT_STATUS_INSUFFICIENT_MEMORY:
        printf("Insufficient memory to load '%s'.", fileName);
        break;
    case DATA_SET_INIT_STATUS_CORRUPT_DATA:
        printf("Device data file '%s' is corrupted.", fileName);
        break;
    case DATA_SET_INIT_STATUS_INCORRECT_VERSION:
        printf("Device data file '%s' is not correct version.", fileName);
        break;
    case DATA_SET_INIT_STATUS_FILE_NOT_FOUND:
        printf("Device data file '%s' not found.", fileName);
        break;
    case DATA_SET_INIT_STATUS_NULL_POINTER:
        printf("Null pointer to the existing dataset or memory location.");
        break;
    case DATA_SET_INIT_STATUS_POINTER_OUT_OF_BOUNDS:
        printf("Allocated continuous memory containing 51Degrees data file "
            "appears to be smaller than expected. Most likely because the"
            " data file was not fully loaded into the allocated memory.");
        break;
    default:
        printf("Device data file '%s' could not be loaded.", fileName);
        break;
    }
}