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

typedef enum { STATE_IDLE, STATE_RECORD, STATE_LOOPING, STATE_PAUSED } ChannelState;

bool parse_status_line(const char *line, int *ch, int *scene, ChannelState *state);

static int test_parse_idle(void) {
    printf("Test parse_status_line: IDLE\n");
    int ch, sc; ChannelState st;
    if (!parse_status_line("CH=0 SC=0 STATE=IDLE\n", &ch, &sc, &st)) {
        fprintf(stderr, "  FAIL: parse returned false\n");
        return 1;
    }
    if (ch != 0 || sc != 0 || st != STATE_IDLE) {
        fprintf(stderr, "  FAIL: expected (0,0,IDLE), got (%d,%d,%d)\n", ch, sc, st);
        return 1;
    }
    printf("  PASS\n");
    return 0;
}

static int test_parse_recording(void) {
    printf("Test parse_status_line: RECORD\n");
    int ch, sc; ChannelState st;
    if (!parse_status_line("CH=0 SC=0 STATE=RECORD\n", &ch, &sc, &st)) {
        fprintf(stderr, "  FAIL: parse returned false\n");
        return 1;
    }
    if (ch != 0 || sc != 0 || st != STATE_RECORD) {
        fprintf(stderr, "  FAIL: expected (0,0,RECORD), got (%d,%d,%d)\n", ch, sc, st);
        return 1;
    }
    printf("  PASS\n");
    return 0;
}

static int test_parse_looping(void) {
    printf("Test parse_status_line: LOOPING\n");
    int ch, sc; ChannelState st;
    if (!parse_status_line("CH=0 SC=0 STATE=LOOPING\n", &ch, &sc, &st)) {
        fprintf(stderr, "  FAIL: parse returned false\n");
        return 1;
    }
    if (ch != 0 || sc != 0 || st != STATE_LOOPING) {
        fprintf(stderr, "  FAIL: expected (0,0,LOOPING), got (%d,%d,%d)\n", ch, sc, st);
        return 1;
    }
    printf("  PASS\n");
    return 0;
}

static int test_parse_paused(void) {
    printf("Test parse_status_line: PAUSED\n");
    int ch, sc; ChannelState st;
    if (!parse_status_line("CH=0 SC=0 STATE=PAUSED\n", &ch, &sc, &st)) {
        fprintf(stderr, "  FAIL: parse returned false\n");
        return 1;
    }
    if (ch != 0 || sc != 0 || st != STATE_PAUSED) {
        fprintf(stderr, "  FAIL: expected (0,0,PAUSED), got (%d,%d,%d)\n", ch, sc, st);
        return 1;
    }
    printf("  PASS\n");
    return 0;
}

static int test_parse_malformed(void) {
    printf("Test parse_status_line: malformed\n");
    int ch, sc; ChannelState st;
    if (parse_status_line("garbage\n", &ch, &sc, &st)) {
        fprintf(stderr, "  FAIL: parse should return false for garbage\n");
        return 1;
    }
    printf("  PASS\n");
    return 0;
}

int main(void) {
    int fail = 0;
    fail += test_parse_idle();
    fail += test_parse_recording();
    fail += test_parse_looping();
    fail += test_parse_paused();
    fail += test_parse_malformed();
    return fail;
}