#include "xtc/xtc.h"
#include "xtc/xtc_version.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "xtc/xtc_project.h"
#include "xtc/xtc_audio.h"
#include "xtc/xtc_midi.h"
#include <limits.h>

/**
 * @brief Runs the xtc-check command-line entry point.
 *
 * Supports --version, --help, and --validate PROJECT. With no arguments it
 * creates and destroys the application shell to check core startup/shutdown.
 * Any other argument count prints usage to stderr.
 *
 * @param argc Number of command-line arguments, including the program name.
 * @param argv Command-line argument vector; argv[0] is the program name.
 * @return EXIT_SUCCESS on success, or EXIT_FAILURE for invalid usage,
 *         validation failure, or core initialization failure.
 */
int main(int argc, char **argv)
{
    if (argc == 2 && !strcmp(argv[1], "--version")) {
        printf("%s %s\n", XTC_PROJECT_NAME, XTC_VERSION_STRING);
        return EXIT_SUCCESS;
    }
    if (argc == 2 && !strcmp(argv[1], "--diagnose")) {
        unsigned int features = xtc_build_features();
        printf("xtc %s; %zu-bit process\nProject formats: 1..%u\nJACK compiled: %s\nLADSPA compiled: %s\n"
               "Limits: 256 graph nodes (64/project), %u tracks, %u clips, %u notes, 65536 frames/block\n"
               "No server, device or plugin probed. Runtime errors appear in GUI status/stderr.\n",
               XTC_VERSION_STRING,sizeof(void *)*CHAR_BIT,XTC_PROJECT_FORMAT_VERSION,
               features & XTC_FEATURE_JACK ? "yes" : "no",features & XTC_FEATURE_LADSPA ? "yes" : "no",
               XTC_PROJECT_MAX_TRACKS,XTC_PROJECT_MAX_CLIPS,XTC_PROJECT_MAX_NOTES);
        return EXIT_SUCCESS;
    }
    if (argc == 2 && !strcmp(argv[1], "--help")) {
        puts("Usage: xtc-check [--version | --help | --diagnose | --validate PROJECT | --recover-recording TEMP NEW.wav]\nNo arguments checks core startup/shutdown. "
             "Validation checks metadata only.");
        return EXIT_SUCCESS;
    }
    if (argc == 4 && !strcmp(argv[1], "--recover-recording")) {
        xtc_result result = xtc_recorder_recover(argv[2], argv[3]);
        if (result != XTC_OK) {
            fprintf(stderr, "Recording recovery failed: %s. Source retained; choose a new writable destination.\n",
                    xtc_result_string(result));
            return EXIT_FAILURE;
        }
        puts("Complete recorded frames recovered; source retained.");
        return EXIT_SUCCESS;
    }
    if (argc == 3 && !strcmp(argv[1], "--validate")) {
        xtc_project *project = NULL;
        xtc_result result = xtc_project_create(&project);
        if (result == XTC_OK)
            result = xtc_project_load(project, argv[2]);
        xtc_project_destroy(project);
        if (result != XTC_OK) {
            fprintf(stderr, "Project validation failed: %s\n", xtc_result_string(result));
            return EXIT_FAILURE;
        }
        puts("Project metadata valid (external assets not loaded).");
        return EXIT_SUCCESS;
    }
    if (argc != 1) {
        fputs("Usage: xtc-check [--version | --help | --diagnose | --validate PROJECT | --recover-recording TEMP NEW.wav]\n", stderr);
        return EXIT_FAILURE;
    }

    xtc_app *app = NULL;
    xtc_result result = xtc_app_create(&app);

    if (result != XTC_OK) {
        (void)fprintf(stderr, "Application initialization failed: %s\n", xtc_result_string(result));
        return EXIT_FAILURE;
    }

    xtc_app_destroy(app);
    if (printf("%s %s: core startup/shutdown OK\n", XTC_PROJECT_NAME, XTC_VERSION_STRING) < 0) {
        return EXIT_FAILURE;
    }
    return EXIT_SUCCESS;
}