// The contents of this file are subject to the BOINC 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://boinc.berkeley.edu/license_1.0.txt
// 
// 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 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):
//

#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;
}