#include <pocketsphinx.h>
#include "pocketsphinx_internal.h"
#include "test_macros.h"

#define LEN(array) (sizeof(array) / sizeof(array[0]))
static char *good_argv[] = {
    "pocketsphinx",
    "-hmm",
    "en-us",
    "-samprate",
    "16000",
    "-beam",
    "0.005",
    "-backtrace",
    "yes"
};
static int good_argc = LEN(good_argv);
static char *good_json = \
    "{ \"hmm\": \"en-us\",\n"
    "  \"samprate\": 16000,\n"
    "  \"beam\": 5e-3,\n"
    "  \"backtrace\": true\n"
    "}";
static char *cmd_argv[] = {
    "pocketsphinx",
    "-hmm",
    "en-us",
    "-samprate",
    "16000",
    "-beam",
    "0.005",
    "-backtrace",
    "yes"
};
static int cmd_argc = LEN(cmd_argv);
static char *bad_argv[] = {
    "pocketsphinx",
    "-hmm",
    "en-us",
    "-samprate",
    "forty-two",
    "beam",
    "1e-80",
    "-backtrace",
    "WTF"
};
static int bad_argc = LEN(bad_argv);
static char *bad_json = \
    "{ \"hmm\": en us,\n"
    "  \"samprate\": 16000,\n"
    "  \"beam\": 5e-3,\n"
    "  \"backtrace\": true\n"
    "}";
static char *ugly_json = \
    "hmm: en-us samprate: 16000 beam: 0.005 backtrace: true";
static char *hard_json = \
    "{ \"hmm\": \"\\\\model\\\\en-us\",\n"
    "  \"keyphrase\": \"spam\tspam \\\"spam\\\" eggs\\nand spam\"\n"
    "}";
/* FIXME: Someday this will be supported */
static char *bad_hard_json = \
    "{ \"hmm\": \"\\\\model\\\\en-us\",\n"
    "  \"keyphrase\": \"spam\tspam \\\"spam\\\"\\u0020eggs\\nand spam\"\n"
    "}";

static void
check_live_args(ps_config_t *config)
{
    /* Check parsed values */
    TEST_EQUAL(0, strcmp("en-us", ps_config_str(config, "hmm")));
    TEST_EQUAL(16000, ps_config_int(config, "samprate"));
    TEST_EQUAL_FLOAT(5e-3, ps_config_float(config, "beam"));
    
    /* Set new values */
    TEST_ASSERT(ps_config_set_str(config, "hmm", "fr-fr"));
    TEST_EQUAL(0, strcmp("fr-fr", ps_config_str(config, "hmm")));
    TEST_ASSERT(ps_config_set_int(config, "samprate", 8000));
    TEST_EQUAL(8000, ps_config_int(config, "samprate"));
    TEST_ASSERT(ps_config_set_float(config, "beam", 1e-40));
    TEST_EQUAL_FLOAT(1e-40, ps_config_float(config, "beam"));
}

static void
test_config_init(void)
{
    ps_config_t *config;

    TEST_ASSERT(config = ps_config_init(NULL));
    ps_config_retain(config);
    TEST_EQUAL(1, ps_config_free(config));
    TEST_EQUAL(0, ps_config_free(config));

    TEST_ASSERT(config = ps_config_init(NULL));
    TEST_ASSERT(ps_config_set_str(config, "hmm", "en-us"));
    TEST_ASSERT(ps_config_set_int(config, "samprate", 16000));
    TEST_ASSERT(ps_config_set_float(config, "beam", 0.005));
    check_live_args(config);
    TEST_EQUAL(0, ps_config_free(config));
}

static void
test_config_args(void)
{
    ps_config_t *config;
    TEST_ASSERT(config = ps_config_parse_args(NULL, good_argc, good_argv));
    TEST_EQUAL(0, ps_config_free(config));
    TEST_EQUAL(NULL, ps_config_parse_args(NULL, bad_argc, bad_argv));

    TEST_ASSERT(config = ps_config_parse_args(NULL, cmd_argc, cmd_argv));
    check_live_args(config);
    TEST_EQUAL(0, ps_config_free(config));
}

static void
test_config_json(void)
{
    ps_config_t *config;
    char *json;
    
    TEST_ASSERT(config = ps_config_parse_json(NULL, good_json));
    TEST_EQUAL(0, ps_config_free(config));
    TEST_EQUAL(NULL, ps_config_parse_json(NULL, bad_json));

    TEST_ASSERT(config = ps_config_parse_json(NULL, good_json));
    check_live_args(config);
    TEST_EQUAL(0, ps_config_free(config));

    TEST_ASSERT(config = ps_config_parse_json(NULL, ugly_json));
    /* Make a copy now, before it changes in check_live_args */
    json = ckd_salloc(ps_config_serialize_json(config));
    check_live_args(config);
    TEST_EQUAL(0, ps_config_free(config));

    /* Check that serialized JSON gives the same result */
    TEST_ASSERT(config = ps_config_parse_json(NULL, json));
    check_live_args(config);
    TEST_EQUAL(0, ps_config_free(config));
    ckd_free(json);

    TEST_ASSERT(config = ps_config_parse_json(NULL, hard_json));
    printf("%s\n", ps_config_str(config, "hmm"));
    printf("%s\n", ps_config_str(config, "keyphrase"));
    TEST_EQUAL(0, strcmp(ps_config_str(config, "hmm"),
                         "\\model\\en-us"));
    TEST_EQUAL(0, strcmp(ps_config_str(config, "keyphrase"),
                         "spam\tspam \"spam\" eggs\nand spam"));
    json = ckd_salloc(ps_config_serialize_json(config));
    ps_config_free(config);

    TEST_ASSERT(config = ps_config_parse_json(NULL, json));
    printf("%s\n", ps_config_str(config, "hmm"));
    printf("%s\n", ps_config_str(config, "keyphrase"));
    TEST_EQUAL(0, strcmp(ps_config_str(config, "hmm"),
                         "\\model\\en-us"));
    TEST_EQUAL(0, strcmp(ps_config_str(config, "keyphrase"),
                         "spam\tspam \"spam\" eggs\nand spam"));
    ps_config_free(config);
    ckd_free(json);
    TEST_EQUAL(NULL, ps_config_parse_json(NULL, bad_hard_json));
}

static void
test_validate_config(void)
{
    ps_config_t *config;
    TEST_ASSERT(config =
                ps_config_parse_json(
                    NULL,
                    "hmm: \"" MODELDIR "/en-us/en-us\","
                    "lm: \"" MODELDIR "/en-us/en-us.lm.bin\","
                    "dict: \"" MODELDIR "/en-us/cmudict-en-us.dict\","
                    "fwdtree: true,"
                    "fwdflat: false,"
                    "bestpath: false,"
                    "samprate: 16000"));
    TEST_EQUAL(0, ps_config_validate(config));
    ps_config_free(config);
    TEST_ASSERT(config =
                ps_config_parse_json(
                    NULL,
                    "hmm: \"" MODELDIR "/en-us/en-us\","
                    "lm: \"" MODELDIR "/en-us/en-us.lm.bin\","
                    "jsgf: \"" DATADIR "/goforward.gram\","
                    "dict: \"" MODELDIR "/en-us/cmudict-en-us.dict\","
                    "fwdtree: true,"
                    "fwdflat: false,"
                    "bestpath: false,"
                    "samprate: 16000"));
    TEST_ASSERT(ps_config_validate(config) < 0);
    ps_config_free(config);
    TEST_ASSERT(config =
                ps_config_parse_json(
                    NULL,
                    "hmm: \"" MODELDIR "/en-us/en-us\","
                    "kws: \"" DATADIR "/goforward.kws\","
                    "jsgf: \"" DATADIR "/goforward.gram\","
                    "fsg: \"" DATADIR "/goforward.fsg\","
                    "dict: \"" MODELDIR "/en-us/cmudict-en-us.dict\","
                    "fwdtree: true,"
                    "fwdflat: false,"
                    "bestpath: false,"
                    "samprate: 16000"));
    TEST_ASSERT(ps_config_validate(config) < 0);
    ps_config_free(config);
    TEST_ASSERT(config =
                ps_config_parse_json(
                    NULL,
                    "hmm: \"" MODELDIR "/en-us/en-us\","
                    "keyphrase: \"bonjour alexis\","
                    "fwdtree: true,"
                    "fwdflat: false,"
                    "bestpath: false,"
                    "samprate: 16000"));
    TEST_EQUAL(0, ps_config_validate(config));
    ps_config_free(config);
}

static void
test_config_default(void)
{
    ps_config_t *config;
    TEST_ASSERT(config = ps_config_init(NULL));
    setenv("POCKETSPHINX_PATH", MODELDIR, 1);
    ps_default_search_args(config);
    TEST_EQUAL(0, strcmp(ps_config_str(config, "hmm"),
                         MODELDIR "/en-us/en-us"));
    TEST_EQUAL(0, strcmp(ps_config_str(config, "lm"),
                         MODELDIR "/en-us/en-us.lm.bin"));
    TEST_EQUAL(0, strcmp(ps_config_str(config, "dict"),
                         MODELDIR "/en-us/cmudict-en-us.dict"));
    ps_config_free(config);
}

int
main(int argc, char *argv[])
{
    (void)argc; (void)argv;

    test_config_init();
    test_config_args();
    test_config_json();
    test_validate_config();
    test_config_default();
    
    return 0;
}