#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "region.h"        /* win32 pinned region */
#include "ctx.h"           /* win32 vgpu_ctx (embeds region-view) */
#include "present.h"       /* present/pump lifecycle */
#include "stream.h"        /* OS-agnostic status/error/backend setters */
#include "capture.h"       /* backend table */

int main(int argc, char** argv) {
    int fps = argc > 1 ? atoi(argv[1]) : 30;
    if (fps <= 0) fps = 30;

    vgpu_region_t region;
    if (vgpu_region_create(&region) != 0) {
        fprintf(stderr, "main: region_create failed\n");
        return 1;
    }

    vgpu_ctx ctx;
    if (vgpu_present_init(&ctx, &region, (uint32_t)fps) != 0) {
        fprintf(stderr, "main: present_init failed\n");
        vgpu_region_destroy(&region);
        return 1;
    }

    const char* eyes = getenv("EYES");
    int n = 0;
    const capture_backend* bks = capture_backends(&n);
    int started = 0;
    for (int i = 0; i < n && !started; i++) {
        if (eyes && _stricmp(eyes, bks[i].name) != 0) continue;
        fprintf(stderr, "eyes: trying %s\n", bks[i].name);
        started = bks[i].start(&ctx, fps);
        if (!started) fprintf(stderr, "eyes: %s unavailable\n", bks[i].name);
    }
    if (!started) {
        fprintf(stderr, "eyes: no capture backend available\n");
        vgpu_set_status(&ctx.view, VGPU_ST_ERROR);
        vgpu_set_error(&ctx.view, 2u);
        vgpu_present_deinit(&ctx);
        vgpu_region_destroy(&region);
        return 1;
    }

    vgpu_set_backend(&ctx.view, ctx.backend);
    vgpu_present_run(&ctx);   /* never returns */

    vgpu_present_deinit(&ctx);
    vgpu_region_destroy(&region);
    return 0;
}