/* The contents of this file are subject to the Mozilla Public License
Version 1.0 (the "License"); you may not use this file except in
compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/

Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
License for the specific language governing rights and limitations
under the License.

The Original Code is The Original Code is the Berkeley Open Infrastructure
for Network Computing.

The Initial Developer of the Original Code is the SETI@home project.
Portions created by the SETI@home project are Copyright (C) 2002
University of California at Berkeley. All Rights Reserved. 

Contributor(s): See ACKNOWLEDGEMENTS. 
*/

#include <stdio.h>

#include <stdlib.h>

#include "boinc_api.h"

int get_run_info(double& time, unsigned long int& counter);
void run_api_test(char* args);
int print_results(double time1, double time2, 
    unsigned long int counter1, unsigned long int counter2
);
int initialize_api();

int main() {
    double time1, time2;
    unsigned long int counter1, counter2;
    if(initialize_api()) {
        fprintf(stderr, "error: could not initialize api\n");
        return 1;
    }
    run_api_test("2 100");
    get_run_info(time1, counter1);
    if(initialize_api()) {
        fprintf(stderr, "error: could not initialize api\n");
        return 1;
    }
    run_api_test("0 0");
    get_run_info(time2, counter2);
    print_results(time1, time2, counter1, counter2);
}

int get_run_info(double& time, unsigned long int& counter) {
    APP_OUT ao;
    FILE* f=fopen(APP_TO_CORE_FILE, "r");
    if(f == NULL) {
        fprintf(stderr, "error: could not open %s\n", APP_TO_CORE_FILE);
        return 1;
    }
    parse_app_file(f, ao);
    time = ao.cpu_time_at_checkpoint;
    if(fclose(f)) {
        fprintf(stderr, "error: could not close %s\n", APP_TO_CORE_FILE);
        return 1;
    }
    f=fopen("counter", "r");
    fscanf(f, "%lu", &counter);
    if(fclose(f)) {
        fprintf(stderr, "error: could not close counter\n");
        return 1;
    }
    return 0;
}

void run_api_test(char* args) {
    char buf[256];
    sprintf(buf, "../api/api_app %s", args);
    system(buf);
}

int initialize_api() {
    APP_IN ai;
    FILE* f;
    ai.graphics.xsize=0;
    ai.graphics.ysize=0;
    ai.graphics.refresh_period=0;
    ai.checkpoint_period = 1.0;
    ai.poll_period = 0;
    ai.cpu_time = 0;
    f = fopen(CORE_TO_APP_FILE, "w");
    write_core_file(f, ai);
    if(fclose(f)) {
        fprintf(stderr, "error: could not close %s\n", CORE_TO_APP_FILE);
        return 1;
    }
    return 0;
}

int print_results(double time1, double time2, unsigned long int counter1,
    unsigned long int counter2
) {
    if(counter2 < counter1) printf("api test counter did not work properly\n");
    if(time1 == 0) printf("api test did not work first time\n");
    if(time2 == 0) printf("api test did not work second time\n");
    if(counter1 == counter2) printf("api test did not resume from restart\n");
    printf("total run time for api test was %f\n", time1+time2);
    return 0;
}