/* SPDX-License-Identifier: GPL-3.0-or-later */
#define SDL_MAIN_HANDLED
#include <SDL.h>

#include "firmware_gate.h"

#include <stdio.h>
#include <string.h>

#ifndef CHIMERA_GFX_PS5_ALLOWED_FIRMWARE
#define CHIMERA_GFX_PS5_ALLOWED_FIRMWARE "NONE"
#endif

#define CHIMERA_GFX_PHASE1_WIDTH 1920
#define CHIMERA_GFX_PHASE1_HEIGHT 1080
#define CHIMERA_GFX_PHASE1_HOLD_MS 1000u

static void log_stage(const char *stage, int success) {
    (void)fprintf(stdout, "{\"stage\":\"%s\",\"success\":%s}\n", stage,
                  success != 0 ? "true" : "false");
}

int main(int argc, char **argv) {
    SDL_Window *window = NULL;
    SDL_Surface *surface = NULL;
    Uint32 color;
    int result = 1;

    if (argc != 4 || strcmp(argv[1], "--firmware") != 0 ||
        strcmp(argv[3], "--acknowledge-phase1-videoout-clear") != 0) {
        (void)fprintf(
            stderr, "refusing: exact firmware and acknowledgement required\n");
        return 64;
    }
    if (!chimera_gfx_firmware_gate_allows(CHIMERA_GFX_PS5_ALLOWED_FIRMWARE,
                                          argv[2])) {
        (void)fprintf(stderr, "refusing: firmware is not allowlisted\n");
        return 77;
    }

    log_stage("firmware_gate", 1);
    SDL_SetMainReady();
    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
        log_stage("video_init", 0);
        goto cleanup;
    }
    log_stage("video_init", 1);

    window = SDL_CreateWindow("chimera-gfx controlled clear", 0, 0,
                              CHIMERA_GFX_PHASE1_WIDTH,
                              CHIMERA_GFX_PHASE1_HEIGHT, SDL_WINDOW_SHOWN);
    if (window == NULL) {
        log_stage("window_create", 0);
        goto cleanup;
    }
    log_stage("window_create", 1);

    surface = SDL_GetWindowSurface(window);
    if (surface == NULL) {
        log_stage("surface_acquire", 0);
        goto cleanup;
    }
    log_stage("surface_acquire", 1);

    color = SDL_MapRGBA(surface->format, 0x18u, 0x2au, 0x41u, 0xffu);
    if (SDL_FillRect(surface, NULL, color) != 0) {
        log_stage("cpu_fill", 0);
        goto cleanup;
    }
    log_stage("cpu_fill", 1);

    /* This is the only requested display mutation and the hardware gate. */
    if (SDL_UpdateWindowSurface(window) != 0) {
        log_stage("single_present", 0);
        goto cleanup;
    }
    log_stage("single_present", 1);
    SDL_Delay(CHIMERA_GFX_PHASE1_HOLD_MS);
    result = 0;

cleanup:
    if (window != NULL) {
        SDL_DestroyWindow(window);
    }
    SDL_Quit();
    log_stage("cleanup", 1);
    return result;
}