#include "databasemanager.h"

#include <QDebug>
#include <QDir>
#include <QMessageBox>
#include <QSqlError>
#include <QSqlQuery>
#include <QStandardPaths>

#include "../utils/logger.h"
#include "global.h"

DatabaseManager& DatabaseManager::getInstance() {
    static DatabaseManager instance;
    return instance;
}

// 创建一个新的数据库连接
DatabaseManager::DatabaseManager() : db(QSqlDatabase::addDatabase("QSQLITE")) {
    // 设置SQLite数据库文件路径
    QString appDataPath = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
    QDir appDataDir(appDataPath);
    if (!appDataDir.exists()) {
        appDataDir.mkpath(".");
    }

    QString dbPath = appDataPath + "/smartmine.db";
    qDebug() << "Database path:" << dbPath;
    db.setDatabaseName(dbPath);

    try {
        if (!db.open()) {
            Logger::getInstance().error(
                QString("SQLite Connected error. path: %1, error: %2").arg(dbPath, db.lastError().text()));
            QMessageBox::critical(nullptr, "错误",
                                  QString("无法连接数据库, 请联系开发人员。\n 错误: %1").arg(db.lastError().text()));

            throw std::runtime_error("Database connection failed: " + db.lastError().text().toStdString());
        }

        Logger::getInstance().info(QString("SQLite Connected. path: %1").arg(dbPath));

        // 初始化数据库表结构
        initializeTables();
    } catch (const std::exception& e) {
        Logger::getInstance().error(QString("Database initialization failed: %1").arg(e.what()));
        QMessageBox::critical(nullptr, "错误", QString("数据库初始化失败: %1").arg(e.what()));
    }
}

DatabaseManager::~DatabaseManager() {
    if (db.isOpen()) {
        db.close();
    }
}

QSqlDatabase& DatabaseManager::getDatabase() { return db; }

void DatabaseManager::initializeTables() {
    QSqlQuery query(db);

    // 创建 h_project 表 (SQLite语法，基于提供的MySQL结构)
    QString createHProjectTable = R"(
        CREATE TABLE IF NOT EXISTS h_project (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            uuid TEXT,
            name TEXT,
            company_code TEXT,
            htid TEXT,
            xmbh TEXT,
            operator_identity TEXT,
            safety_inspector_identity TEXT,
            blaster_identity TEXT,
            blast_count TEXT,
            address_path TEXT,
            level4_address TEXT,
            address_uuid TEXT,
            det_sum TEXT,
            file_name TEXT,
            file_url TEXT,
            blast_status TEXT,
            created_at TEXT,
            updated_at TEXT,
            deleted_at TEXT,
            create_by INTEGER,
            update_by INTEGER
        )
    )";

    if (!query.exec(createHProjectTable)) {
        Logger::getInstance().error(QString("Failed to create h_project table: %1").arg(query.lastError().text()));
        throw std::runtime_error("Failed to create h_project table");
    }

    // 创建索引（可选，提高查询性能）
    query.exec("CREATE INDEX IF NOT EXISTS idx_h_project_uuid ON h_project(uuid)");
    query.exec("CREATE INDEX IF NOT EXISTS idx_h_project_blast_status ON h_project(blast_status)");
    query.exec("CREATE INDEX IF NOT EXISTS idx_h_project_deletion_date ON h_project(deletion_date)");

    Logger::getInstance().info("Database tables initialized successfully");
}