#include <SDL.h>

#include "api.h"

void print_stats(enum ps ps) {
    int procs = SDL_GetCPUCount();
    int d ;
    int L1;
    char L1suf[6];
    char dsuf[3];
    SDL_PowerState pwr;
    int psec;//seconds of battery life left
    int ppct;//percentage of battery life left
    char psecsuf[8];
    const char*pwrdesc;
    /*--system RAM--*/
    d = SDL_GetSystemRAM();
    if(d>1024) {
        d /= 1024;
        memcpy(dsuf,"gb",3);
    }
    else memcpy(dsuf,"mb",3);
    /*--L1--*/
    L1 = SDL_GetCPUCacheLineSize();
    if(L1>1024*1024) {
        L1 /= 1024 * 1024;
        memcpy(L1suf,"mb",3);
    } else if(L1>1024) {
        L1 /= 1024;
        memcpy(L1suf,"kb",3);
    } else {
        memcpy(L1suf,"bytes",6);
    }
    /*--power state--*/
    pwr = SDL_GetPowerInfo(&psec, &ppct);
    if(psec == -1) psec = 60*60;
    if(psec>=60*60) {
        psec /= 60*60;
        memcpy(psecsuf,psec>1?"hours":"hour\0\0",6);
    } else if(psec>=60) {
        psec /= 60;
        memcpy(psecsuf,psec>1?"minutes":"minute\0\0",8);
    } else {
        memcpy(psecsuf,psec>1?"seconds":"second\0\0",8);
    }
    switch(pwr){
        case SDL_POWERSTATE_ON_BATTERY: pwrdesc="not plugged in, running on the battery";break;
        case SDL_POWERSTATE_NO_BATTERY: pwrdesc="plugged in, no battery available";break;
        case SDL_POWERSTATE_CHARGING: pwrdesc="plugged in, charging battery";break;
        case SDL_POWERSTATE_CHARGED: pwrdesc="plugged in, battery charged";break;
        default:
        case SDL_POWERSTATE_UNKNOWN: pwrdesc="cannot determine power status";
    }
    /*--print stats--*/
    switch(ps){
        case ps_shutdown:
            printf("SDL Quit Battery %d%% (%d%s)\n",ppct,psec,psecsuf);
            break;
        default:
        case ps_startup:
            printf("SDL %s %d%sRAM %dProc%s (L1align=%d%s) Battery %d%% (%d%s)\n",SDL_GetPlatform(),d,dsuf,procs,procs>1?"s":"",L1,L1suf,
                ppct,psec,psecsuf);
    }
    
}