/** @file Native unit tests for ReleaseUpdaterCore (version + release/asset parsing). */
#include <unity.h>
#include "ReleaseUpdaterCore.hpp"
#include <cstring>

static void test_version_parse_basic(void) {
    RuVersion v;
    TEST_ASSERT_TRUE(ruVersionParse("v1.2.3", v));
    TEST_ASSERT_EQUAL_INT(1, v.major); TEST_ASSERT_EQUAL_INT(2, v.minor); TEST_ASSERT_EQUAL_INT(3, v.patch);
    TEST_ASSERT_TRUE(ruVersionParse("1.2.3", v));
    TEST_ASSERT_EQUAL_INT(3, v.patch);
    TEST_ASSERT_TRUE(ruVersionParse("v10.0.1", v));
    TEST_ASSERT_EQUAL_INT(10, v.major);
}

static void test_version_parse_short(void) {
    RuVersion v;
    TEST_ASSERT_TRUE(ruVersionParse("1.2", v));
    TEST_ASSERT_EQUAL_INT(1, v.major); TEST_ASSERT_EQUAL_INT(2, v.minor); TEST_ASSERT_EQUAL_INT(0, v.patch);
    TEST_ASSERT_TRUE(ruVersionParse("v1", v));
    TEST_ASSERT_EQUAL_INT(1, v.major); TEST_ASSERT_EQUAL_INT(0, v.minor); TEST_ASSERT_EQUAL_INT(0, v.patch);
}

static void test_version_parse_reject(void) {
    RuVersion v;
    TEST_ASSERT_FALSE(ruVersionParse("", v));
    TEST_ASSERT_FALSE(ruVersionParse("x", v));
    TEST_ASSERT_FALSE(ruVersionParse("1.x.0", v));
    TEST_ASSERT_FALSE(ruVersionParse("v.1.2", v));
}

static void test_version_parse_suffix_tolerated(void) {
    RuVersion v;
    // git-describe style build suffix after patch is ignored.
    TEST_ASSERT_TRUE(ruVersionParse("v1.2.3-5-gabcdef", v));
    TEST_ASSERT_EQUAL_INT(1, v.major); TEST_ASSERT_EQUAL_INT(2, v.minor); TEST_ASSERT_EQUAL_INT(3, v.patch);
    // dotted trailing content after patch is also ignored (treated as build suffix).
    TEST_ASSERT_TRUE(ruVersionParse("1.2.3.99", v));
    TEST_ASSERT_EQUAL_INT(1, v.major); TEST_ASSERT_EQUAL_INT(2, v.minor); TEST_ASSERT_EQUAL_INT(3, v.patch);
}

static void test_version_compare(void) {
    RuVersion a{1,2,3}, b{1,2,3};
    TEST_ASSERT_EQUAL_INT(0, ruVersionCompare(a, b));
    TEST_ASSERT_EQUAL_INT(1, ruVersionCompare(RuVersion{1,3,0}, RuVersion{1,2,9}));
    TEST_ASSERT_EQUAL_INT(-1, ruVersionCompare(RuVersion{1,2,3}, RuVersion{2,0,0}));
    TEST_ASSERT_EQUAL_INT(1, ruVersionCompare(RuVersion{1,2,4}, RuVersion{1,2,3}));
}

// Minimal GitHub/Gitea "releases/latest" shape (both share tag_name + assets[].{name,browser_download_url}).
static const char* SAMPLE_JSON =
  "{\"tag_name\":\"v1.4.0\",\"assets\":["
  "{\"name\":\"DIYStickyNotes-sc01plus-firmware-1.4.0.bin\",\"browser_download_url\":\"https://h/a/sc.bin\"},"
  "{\"name\":\"DIYStickyNotes-JC-jc3248w535-firmware-1.4.0.bin\",\"browser_download_url\":\"https://h/a/jc.bin\"}"
  "]}";

static void test_parse_selects_sc01(void) {
    RuRelease r;
    TEST_ASSERT_TRUE(ruParseLatestRelease(SAMPLE_JSON, "sc01plus", r));
    TEST_ASSERT_EQUAL_STRING("v1.4.0", r.tag);
    TEST_ASSERT_EQUAL_INT(1, r.version.major); TEST_ASSERT_EQUAL_INT(4, r.version.minor);
    TEST_ASSERT_EQUAL_STRING("https://h/a/sc.bin", r.assetUrl);
}

static void test_parse_selects_jc_not_sc(void) {
    RuRelease r;
    // jc token must NOT cross-match the sc01 asset, and sc01 token must NOT match the jc asset.
    TEST_ASSERT_TRUE(ruParseLatestRelease(SAMPLE_JSON, "jc3248w535", r));
    TEST_ASSERT_EQUAL_STRING("https://h/a/jc.bin", r.assetUrl);
}

static void test_parse_no_matching_asset(void) {
    RuRelease r;
    TEST_ASSERT_TRUE(ruParseLatestRelease(SAMPLE_JSON, "nosuchboard", r));  // parse ok...
    TEST_ASSERT_EQUAL_STRING("", r.assetUrl);                               // ...but no asset
}

// A same-token asset with a non-.bin extension listed BEFORE the real firmware must be skipped
// (locks the `&& ruEndsWithBin(name)` filter against a regression).
static const char* SAMPLE_JSON_NONBIN_FIRST =
  "{\"tag_name\":\"v1.4.0\",\"assets\":["
  "{\"name\":\"DIYStickyNotes-sc01plus-firmware-1.4.0.sha256\",\"browser_download_url\":\"https://h/a/sc.sha256\"},"
  "{\"name\":\"DIYStickyNotes-sc01plus-firmware-1.4.0.bin\",\"browser_download_url\":\"https://h/a/sc.bin\"}"
  "]}";

static void test_parse_skips_non_bin_asset(void) {
    RuRelease r;
    TEST_ASSERT_TRUE(ruParseLatestRelease(SAMPLE_JSON_NONBIN_FIRST, "sc01plus", r));
    TEST_ASSERT_EQUAL_STRING("https://h/a/sc.bin", r.assetUrl);  // .sha256 skipped, real .bin chosen
}

// A board-token ".bin" asset that is NOT the app image (missing the "-firmware-" segment, e.g. a
// LittleFS/factory/combined image) listed BEFORE the real firmware asset must be skipped (locks the
// "{token}-firmware-" needle against a regression that could flash a non-app binary to the app
// partition and brick the device).
static const char* SAMPLE_JSON_NONFIRMWARE_FIRST =
  "{\"tag_name\":\"v1.4.0\",\"assets\":["
  "{\"name\":\"DIYStickyNotes-sc01plus-littlefs-1.4.0.bin\",\"browser_download_url\":\"https://h/a/lfs.bin\"},"
  "{\"name\":\"DIYStickyNotes-sc01plus-firmware-1.4.0.bin\",\"browser_download_url\":\"https://h/a/sc.bin\"}"
  "]}";

static void test_parse_skips_non_firmware_bin_asset(void) {
    RuRelease r;
    TEST_ASSERT_TRUE(ruParseLatestRelease(SAMPLE_JSON_NONFIRMWARE_FIRST, "sc01plus", r));
    TEST_ASSERT_EQUAL_STRING("https://h/a/sc.bin", r.assetUrl);  // littlefs .bin skipped, real firmware chosen
}

static void test_parse_malformed(void) {
    RuRelease r;
    TEST_ASSERT_FALSE(ruParseLatestRelease("not json", "sc01plus", r));
    TEST_ASSERT_FALSE(ruParseLatestRelease("{\"assets\":[]}", "sc01plus", r)); // missing tag_name
    TEST_ASSERT_FALSE(ruParseLatestRelease("{\"tag_name\":\"\",\"assets\":[]}", "sc01plus", r)); // empty tag_name
}

int main(int, char**) {
    UNITY_BEGIN();
    RUN_TEST(test_version_parse_basic);
    RUN_TEST(test_version_parse_short);
    RUN_TEST(test_version_parse_reject);
    RUN_TEST(test_version_parse_suffix_tolerated);
    RUN_TEST(test_version_compare);
    RUN_TEST(test_parse_selects_sc01);
    RUN_TEST(test_parse_selects_jc_not_sc);
    RUN_TEST(test_parse_no_matching_asset);
    RUN_TEST(test_parse_skips_non_bin_asset);
    RUN_TEST(test_parse_skips_non_firmware_bin_asset);
    RUN_TEST(test_parse_malformed);
    return UNITY_END();
}