feat(database): add CRUD operations for parsed sessions and update session name functionality

internal/model/database.go

@@ -3,11 +3,12 @@ package model
 import (
 	"database/sql"
 	"fmt"
+	"log"
 	"os"
 	"path/filepath"
 	"time"
 
-	_ "github.com/mattn/go-sqlite3"
+	_ "modernc.org/sqlite"
 )
 
 // Database 数据库管理器
@@ -18,31 +19,37 @@ type Database struct {
 // NewDatabase 创建新的数据库连接
 func NewDatabase() (*Database, error) {
 	dbPath := getDatabasePath()
-	
+	log.Printf("[db] init: path=%s", dbPath)
+
 	// 确保目录存在
 	dir := filepath.Dir(dbPath)
 	if err := os.MkdirAll(dir, 0755); err != nil {
+		log.Printf("[db] mkdir failed: dir=%s err=%v", dir, err)
 		return nil, fmt.Errorf("创建数据库目录失败: %w", err)
 	}
 
 	// 连接数据库
-	db, err := sql.Open("sqlite3", dbPath)
+	db, err := sql.Open("sqlite", dbPath)
 	if err != nil {
+		log.Printf("[db] open failed: path=%s err=%v", dbPath, err)
 		return nil, fmt.Errorf("连接数据库失败: %w", err)
 	}
 
 	// 测试连接
 	if err := db.Ping(); err != nil {
+		log.Printf("[db] ping failed: err=%v", err)
 		return nil, fmt.Errorf("数据库连接测试失败: %w", err)
 	}
 
 	database := &Database{db: db}
-	
+
 	// 初始化表结构
 	if err := database.initTables(); err != nil {
+		log.Printf("[db] init tables failed: err=%v", err)
 		return nil, fmt.Errorf("初始化数据库表失败: %w", err)
 	}
 
+	log.Printf("[db] init ok")
 	return database, nil
 }
 
@@ -115,13 +122,76 @@ func (d *Database) GetLatestParsedData() (string, string, error) {
 	var itemsJSON, heroesJSON string
 	err := d.db.QueryRow(stmt).Scan(&itemsJSON, &heroesJSON)
 	if err != nil {
+		if err == sql.ErrNoRows {
+			return "", "", nil
+		}
 		return "", "", err
 	}
 
 	return itemsJSON, heroesJSON, nil
 }
 
+// GetParsedSessions 获取所有解析会话
+func (d *Database) GetParsedSessions() ([]ParsedSession, error) {
+	stmt := `
+	SELECT id, session_name, created_at
+	FROM parsed_data
+	ORDER BY created_at DESC`
 
+	rows, err := d.db.Query(stmt)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	sessions := make([]ParsedSession, 0)
+	for rows.Next() {
+		var s ParsedSession
+		if err := rows.Scan(&s.ID, &s.SessionName, &s.CreatedAt); err != nil {
+			return nil, err
+		}
+		sessions = append(sessions, s)
+	}
+	return sessions, nil
+}
+
+// GetParsedDataByID 获取指定会话的数据
+func (d *Database) GetParsedDataByID(id int64) (string, string, error) {
+	stmt := `
+	SELECT items_json, heroes_json
+	FROM parsed_data
+	WHERE id = ?
+	LIMIT 1`
+
+	var itemsJSON, heroesJSON string
+	err := d.db.QueryRow(stmt, id).Scan(&itemsJSON, &heroesJSON)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return "", "", nil
+		}
+		return "", "", err
+	}
+	return itemsJSON, heroesJSON, nil
+}
+
+// UpdateParsedSessionName 更新解析会话名称
+func (d *Database) UpdateParsedSessionName(id int64, name string) error {
+	stmt := `
+	UPDATE parsed_data
+	SET session_name = ?
+	WHERE id = ?`
+	_, err := d.db.Exec(stmt, name, id)
+	return err
+}
+
+// DeleteParsedSession 删除解析会话
+func (d *Database) DeleteParsedSession(id int64) error {
+	stmt := `
+	DELETE FROM parsed_data
+	WHERE id = ?`
+	_, err := d.db.Exec(stmt, id)
+	return err
+}
 
 // SaveSetting 保存应用设置
 func (d *Database) SaveSetting(key, value string) error {
@@ -160,4 +230,4 @@ func (d *Database) GetAllSettings() (map[string]string, error) {
 	}
 
 	return settings, nil
-} 
+}