//=======================================================================
// SqliteTest(gtest): 验证 SQLite 封装 10 个 insertData 写入正确。
// 不改动 SQLite 封装；用裸 sqlite3 打开同一文件读回验证。
//=======================================================================
#include <gtest/gtest.h>
#include <cstdio>
#include <string>
#include <unistd.h>
#include "sqlit3/SQLite.h"
#include "sqlit3/sqlite3.h"

static std::string tmpPath(const char* name) {
    return std::string("/tmp/pmsqlite_") + name + "_" + std::to_string(::getpid()) + ".db";
}

static bool rawQueryInt(const std::string& path, const std::string& sql, long long& out) {
    sqlite3* db = nullptr;
    if (sqlite3_open(path.c_str(), &db) != SQLITE_OK) return false;
    sqlite3_stmt* stmt = nullptr;
    bool ok = false;
    if (sqlite3_prepare_v2(db, sql.c_str(), -1, &stmt, nullptr) == SQLITE_OK) {
        if (sqlite3_step(stmt) == SQLITE_ROW) { out = sqlite3_column_int64(stmt, 0); ok = true; }
    }
    if (stmt) sqlite3_finalize(stmt);
    sqlite3_close(db);
    return ok;
}

static bool rawCount(const std::string& path, const std::string& table, long long& out) {
    return rawQueryInt(path, "SELECT COUNT(*) FROM " + table, out);
}

static bool rawQueryText(const std::string& path, const std::string& sql, std::string& out) {
    sqlite3* db = nullptr;
    if (sqlite3_open(path.c_str(), &db) != SQLITE_OK) return false;
    sqlite3_stmt* stmt = nullptr;
    bool ok = false;
    if (sqlite3_prepare_v2(db, sql.c_str(), -1, &stmt, nullptr) == SQLITE_OK) {
        if (sqlite3_step(stmt) == SQLITE_ROW) {
            const unsigned char* t = sqlite3_column_text(stmt, 0);
            if (t) { out = reinterpret_cast<const char*>(t); ok = true; }
        }
    }
    if (stmt) sqlite3_finalize(stmt);
    sqlite3_close(db);
    return ok;
}

TEST(SqliteTest, InsertCcuStateReadBack)
{
    std::string path = tmpPath("ccu");
    {
        SQLite db(path);
        ASSERT_TRUE(db.createTable());
        ccuState c{}; c.ins_soc = 42; c.dyn_soc = 66; c.fc_status = 4;
        EXPECT_TRUE(db.insertData(c));
    }
    long long v = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT ins_soc FROM ccuState ORDER BY id DESC LIMIT 1", v));
    EXPECT_EQ(v, 42);
    EXPECT_TRUE(rawQueryInt(path, "SELECT dyn_soc FROM ccuState ORDER BY id DESC LIMIT 1", v));
    EXPECT_EQ(v, 66);
    EXPECT_TRUE(rawQueryInt(path, "SELECT fc_status FROM ccuState ORDER BY id DESC LIMIT 1", v));
    EXPECT_EQ(v, 4);
    std::remove(path.c_str());
}

TEST(SqliteTest, InsertDisHighVolBusStateReadBack)
{
    std::string path = tmpPath("dihv");
    {
        SQLite db(path);
        ASSERT_TRUE(db.createTable());
        disHighVolBusState s{};
        s.fuelCellCircuitBreaker = 1;
        s.powerBusVoltage = 5200;
        EXPECT_TRUE(db.insertData(s));
    }
    long long v = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT fuelCellCircuitBreaker FROM disHighVolBusState ORDER BY id DESC LIMIT 1", v));
    EXPECT_EQ(v, 1);
    EXPECT_TRUE(rawQueryInt(path, "SELECT powerBusVoltage FROM disHighVolBusState ORDER BY id DESC LIMIT 1", v));
    EXPECT_EQ(v, 5200);
    std::remove(path.c_str());
}

TEST(SqliteTest, InsertDisHighAVolBusStateReadBack)
{
    std::string path = tmpPath("dihva");
    {
        SQLite db(path); ASSERT_TRUE(db.createTable());
        disHighAVolBusState s{}; s.bowFTDevice123CircuitBreaker = 1; s.busbarBVoltage = 100;
        EXPECT_TRUE(db.insertData(s));
    }
    long long v = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT bowFTDevice123CircuitBreaker FROM disHighAVolBusState", v));
    EXPECT_EQ(v, 1);
    EXPECT_TRUE(rawQueryInt(path, "SELECT busbarBVoltage FROM disHighAVolBusState", v));
    EXPECT_EQ(v, 100);
    std::remove(path.c_str());
}

TEST(SqliteTest, InsertDisLowMainBusStateReadBack)
{
    std::string path = tmpPath("dilmb");
    {
        SQLite db(path); ASSERT_TRUE(db.createTable());
        disLowMainBusState s{}; s.unit4InstrumentDC48VCircuitBreaker = 1;
        EXPECT_TRUE(db.insertData(s));
    }
    long long v = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT unit4InstrumentDC48VCircuitBreaker FROM disLowMainBusState", v));
    EXPECT_EQ(v, 1);
    std::remove(path.c_str());
}

TEST(SqliteTest, InsertDisLowBusStateReadBack)
{
    std::string path = tmpPath("dilb");
    {
        SQLite db(path); ASSERT_TRUE(db.createTable());
        disLowBusState s{}; s.unit1CircuitBreaker = 1;
        EXPECT_TRUE(db.insertData(s));
    }
    long long v = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT unit1CircuitBreaker FROM disLowBusState", v));
    EXPECT_EQ(v, 1);
    std::remove(path.c_str());
}

TEST(SqliteTest, InsertCommandsReadBack)
{
    std::string path = tmpPath("cmd");
    {
        SQLite db(path); ASSERT_TRUE(db.createTable());
        ccuColCmd cc{}; cc.heartbeat = 5; EXPECT_TRUE(db.insertData(cc));
        disHighVolBusCmd c1{}; c1.dcdc5Module = 1; c1.coolingSystem = 1; EXPECT_TRUE(db.insertData(c1));
        disHighAVolBusCmd c2{}; c2.xczCircuitBreaker = 1; EXPECT_TRUE(db.insertData(c2));
        disLowMainBusCmd c3{}; c3.dcC1DCDistributionPanelCircuitBreaker = 1; EXPECT_TRUE(db.insertData(c3));
        disLowBusCmd c4{}; c4.unit2CircuitBreaker = 1; EXPECT_TRUE(db.insertData(c4));
    }
    long long v = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT heartbeat FROM ccuColCmd", v));       EXPECT_EQ(v, 5);
    EXPECT_TRUE(rawQueryInt(path, "SELECT dcdc5Module FROM disHighVolBusCmd", v)); EXPECT_EQ(v, 1);
    EXPECT_TRUE(rawQueryInt(path, "SELECT xczCircuitBreaker FROM disHighAVolBusCmd", v)); EXPECT_EQ(v, 1);
    EXPECT_TRUE(rawQueryInt(path, "SELECT dcC1DCDistributionPanelCircuitBreaker FROM disLowMainBusCmd", v)); EXPECT_EQ(v, 1);
    EXPECT_TRUE(rawQueryInt(path, "SELECT unit2CircuitBreaker FROM disLowBusCmd", v)); EXPECT_EQ(v, 1);
    std::remove(path.c_str());
}

TEST(SqliteTest, MultipleInsertsCount)
{
    std::string path = tmpPath("multi");
    {
        SQLite db(path); ASSERT_TRUE(db.createTable());
        ccuState c{}; c.ins_soc = 10;
        EXPECT_TRUE(db.insertData(c));
        EXPECT_TRUE(db.insertData(c));
        EXPECT_TRUE(db.insertData(c));
    }
    long long n = 0;
    EXPECT_TRUE(rawCount(path, "ccuState", n));
    EXPECT_EQ(n, 3);
    std::remove(path.c_str());
}

TEST(SqliteTest, InsertCcuSetParmCmdReadBack)
{
    std::string path = tmpPath("setparmcmd");
    {
        SQLite db(path); ASSERT_TRUE(db.createTable());
        ccuSetParmCmd c{}; c.insSocHold1 = 7; c.powerSocHold2 = 88;
        EXPECT_TRUE(db.insertData(c));
    }
    long long v = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT insSocHold1 FROM ccuSetParmCmd", v));
    EXPECT_EQ(v, 7);
    EXPECT_TRUE(rawQueryInt(path, "SELECT powerSocHold2 FROM ccuSetParmCmd", v));
    EXPECT_EQ(v, 88);
    std::remove(path.c_str());
}

TEST(SqliteTest, InsertCcuSetParmFbReadBack)
{
    std::string path = tmpPath("setparmfb");
    {
        SQLite db(path); ASSERT_TRUE(db.createTable());
        msg_CcuSetParmFbMsg fb{}; fb.flag = 1; fb.failureCode = 2;
        EXPECT_TRUE(db.insertData(fb));
    }
    long long v = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT flag FROM ccuSetParmFb", v));
    EXPECT_EQ(v, 1);
    EXPECT_TRUE(rawQueryInt(path, "SELECT failureCode FROM ccuSetParmFb", v));
    EXPECT_EQ(v, 2);
    std::remove(path.c_str());
}

TEST(SqliteTest, LogRawFrameReadBack)
{
    std::string path = tmpPath("raw");
    {
        SQLite db(path); ASSERT_TRUE(db.createTable());
        const unsigned char frame[] = {0x20, 0x20, 0x51, 0x00, 0x01, 0x02, 0x03};
        db.onFrame(0, 0x0051, "ccuState", frame, sizeof(frame), true);
        db.onFrame(1, 0x0001, "disHighVolBusCmd", frame, sizeof(frame), true);
    }
    long long n = 0;
    EXPECT_TRUE(rawCount(path, "msg_log", n));
    EXPECT_EQ(n, 2);
    std::string hex;
    EXPECT_TRUE(rawQueryText(path, "SELECT payload_hex FROM msg_log ORDER BY id LIMIT 1", hex));
    EXPECT_EQ(hex, "20205100010203");
    long long dir = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT direction FROM msg_log ORDER BY id DESC LIMIT 1", dir));
    EXPECT_EQ(dir, 1);
    std::remove(path.c_str());
}

TEST(SqliteTest, InvalidPathIsFailOpen)
{
    SQLite db("/invalid/path/nonexistent_dir/test.db");
    EXPECT_EQ(db.status(), SQLite::Status::Disabled);
    EXPECT_FALSE(db.isConnected());
    ccuState c{}; c.ins_soc = 1;
    EXPECT_FALSE(db.insertData(c));  // 不抛异常，返回 false
    ccuColCmd cmd{};
    EXPECT_FALSE(db.insertData(cmd));
    const unsigned char frame[] = {0x20, 0x20};
    db.onFrame(0, 0x0051, "ccuState", frame, sizeof(frame), true);  // 不崩溃
}

TEST(SqliteTest, CorruptDatabaseRecovered)
{
    std::string path = tmpPath("corrupt");
    {
        // 写入非 SQLite 内容，模拟损坏的库文件
        FILE* f = fopen(path.c_str(), "wb");
        ASSERT_TRUE(f != nullptr);
        for (int i = 0; i < 4096; ++i) fputc((i * 7 + 3) & 0xFF, f);
        fclose(f);

        SQLite db(path);
        // 应能备份损坏文件并重建，恢复可用
        EXPECT_EQ(db.status(), SQLite::Status::OK);
        EXPECT_TRUE(db.isConnected());
        ccuState c{}; c.ins_soc = 99;
        EXPECT_TRUE(db.insertData(c));
    }
    long long v = 0;
    EXPECT_TRUE(rawQueryInt(path, "SELECT ins_soc FROM ccuState", v));
    EXPECT_EQ(v, 99);
    std::remove(path.c_str());
    std::remove((path + ".corrupt").c_str());
}