Files
voidraft/internal/services/theme_service.go
2025-11-20 23:07:12 +08:00

167 lines
3.4 KiB
Go

package services
import (
"context"
"database/sql"
"errors"
"fmt"
"strings"
"time"
"voidraft/internal/models"
"github.com/wailsapp/wails/v3/pkg/application"
"github.com/wailsapp/wails/v3/pkg/services/log"
)
// ThemeService 主题服务
type ThemeService struct {
databaseService *DatabaseService
logger *log.LogService
ctx context.Context
}
// NewThemeService 创建新的主题服务
func NewThemeService(databaseService *DatabaseService, logger *log.LogService) *ThemeService {
if logger == nil {
logger = log.New()
}
return &ThemeService{
databaseService: databaseService,
logger: logger,
}
}
// ServiceStartup 服务启动
func (ts *ThemeService) ServiceStartup(ctx context.Context, options application.ServiceOptions) error {
ts.ctx = ctx
return nil
}
// getDB 获取数据库连接
func (ts *ThemeService) getDB() *sql.DB {
return ts.databaseService.db
}
// GetThemeByName 通过名称获取主题覆盖,若不存在则返回 nil
func (ts *ThemeService) GetThemeByName(name string) (*models.Theme, error) {
db := ts.getDB()
if db == nil {
return nil, fmt.Errorf("database not available")
}
trimmed := strings.TrimSpace(name)
if trimmed == "" {
return nil, fmt.Errorf("theme name cannot be empty")
}
query := `
SELECT id, name, type, colors, is_default, created_at, updated_at
FROM themes
WHERE name = ?
LIMIT 1
`
theme := &models.Theme{}
err := db.QueryRow(query, trimmed).Scan(
&theme.ID,
&theme.Name,
&theme.Type,
&theme.Colors,
&theme.IsDefault,
&theme.CreatedAt,
&theme.UpdatedAt,
)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return nil, nil
}
return nil, fmt.Errorf("failed to query theme: %w", err)
}
return theme, nil
}
// UpdateTheme 保存或更新主题覆盖
func (ts *ThemeService) UpdateTheme(name string, colors models.ThemeColorConfig) error {
db := ts.getDB()
if db == nil {
return fmt.Errorf("database not available")
}
trimmed := strings.TrimSpace(name)
if trimmed == "" {
return fmt.Errorf("theme name cannot be empty")
}
if colors == nil {
colors = models.ThemeColorConfig{}
}
colors["themeName"] = trimmed
themeType := models.ThemeTypeDark
if raw, ok := colors["dark"].(bool); ok && !raw {
themeType = models.ThemeTypeLight
}
now := time.Now().Format("2006-01-02 15:04:05")
existing, err := ts.GetThemeByName(trimmed)
if err != nil {
return err
}
if existing == nil {
_, err = db.Exec(
`INSERT INTO themes (name, type, colors, is_default, created_at, updated_at) VALUES (?, ?, ?, 0, ?, ?)`,
trimmed,
themeType,
colors,
now,
now,
)
if err != nil {
return fmt.Errorf("failed to insert theme: %w", err)
}
return nil
}
_, err = db.Exec(
`UPDATE themes SET type = ?, colors = ?, updated_at = ? WHERE name = ?`,
themeType,
colors,
now,
trimmed,
)
if err != nil {
return fmt.Errorf("failed to update theme: %w", err)
}
return nil
}
// ResetTheme 删除指定主题的覆盖配置
func (ts *ThemeService) ResetTheme(name string) error {
db := ts.getDB()
if db == nil {
return fmt.Errorf("database not available")
}
trimmed := strings.TrimSpace(name)
if trimmed == "" {
return fmt.Errorf("theme name cannot be empty")
}
if _, err := db.Exec(`DELETE FROM themes WHERE name = ?`, trimmed); err != nil {
return fmt.Errorf("failed to reset theme: %w", err)
}
return nil
}
// ServiceShutdown 服务关闭
func (ts *ThemeService) ServiceShutdown() error {
return nil
}