package response

import (
	"encoding/json"

	"git.echol.cn/loser/st/server/model/app"
)

// ExtensionResponse 扩展响应
type ExtensionResponse struct {
	ID               uint                   `json:"id"`
	UserID           uint                   `json:"userId"`
	Name             string                 `json:"name"`
	DisplayName      string                 `json:"displayName"`
	Version          string                 `json:"version"`
	Author           string                 `json:"author"`
	Description      string                 `json:"description"`
	Homepage         string                 `json:"homepage"`
	Repository       string                 `json:"repository"`
	License          string                 `json:"license"`
	Tags             []string               `json:"tags"`
	ExtensionType    string                 `json:"extensionType"`
	Category         string                 `json:"category"`
	Dependencies     map[string]string      `json:"dependencies"`
	Conflicts        []string               `json:"conflicts"`
	ScriptPath       string                 `json:"scriptPath"`
	StylePath        string                 `json:"stylePath"`
	AssetPaths       []string               `json:"assetPaths"`
	ManifestData     map[string]interface{} `json:"manifestData"`
	Settings         map[string]interface{} `json:"settings"`
	Options          map[string]interface{} `json:"options"`
	Metadata         map[string]interface{} `json:"metadata"`
	IsEnabled        bool                   `json:"isEnabled"`
	IsInstalled      bool                   `json:"isInstalled"`
	IsSystemExt      bool                   `json:"isSystemExt"`
	InstallSource    string                 `json:"installSource"`
	SourceURL        string                 `json:"sourceUrl"`
	Branch           string                 `json:"branch"`
	AutoUpdate       bool                   `json:"autoUpdate"`
	LastUpdateCheck  *int64                 `json:"lastUpdateCheck"`
	AvailableVersion string                 `json:"availableVersion"`
	InstallDate      *int64                 `json:"installDate"`
	LastEnabled      *int64                 `json:"lastEnabled"`
	UsageCount       int                    `json:"usageCount"`
	ErrorCount       int                    `json:"errorCount"`
	LoadTime         int                    `json:"loadTime"`
	CreatedAt        int64                  `json:"createdAt"`
	UpdatedAt        int64                  `json:"updatedAt"`
}

// ExtensionListResponse 扩展列表响应
type ExtensionListResponse struct {
	List     []ExtensionResponse `json:"list"`
	Total    int64               `json:"total"`
	Page     int                 `json:"page"`
	PageSize int                 `json:"pageSize"`
}

// unmarshalJSONB 通用 JSONB 反序列化辅助函数
func unmarshalJSONB[T any](data []byte, fallback T) T {
	if len(data) == 0 {
		return fallback
	}
	var result T
	if err := json.Unmarshal(data, &result); err != nil {
		return fallback
	}
	return result
}

// ToExtensionResponse 将 AIExtension 转换为 ExtensionResponse
func ToExtensionResponse(ext *app.AIExtension) ExtensionResponse {
	return ExtensionResponse{
		ID:               ext.ID,
		UserID:           ext.UserID,
		Name:             ext.Name,
		DisplayName:      ext.DisplayName,
		Version:          ext.Version,
		Author:           ext.Author,
		Description:      ext.Description,
		Homepage:         ext.Homepage,
		Repository:       ext.Repository,
		License:          ext.License,
		Tags:             unmarshalJSONB(ext.Tags, []string{}),
		ExtensionType:    ext.ExtensionType,
		Category:         ext.Category,
		Dependencies:     unmarshalJSONB(ext.Dependencies, map[string]string{}),
		Conflicts:        unmarshalJSONB(ext.Conflicts, []string{}),
		ScriptPath:       ext.ScriptPath,
		StylePath:        ext.StylePath,
		AssetPaths:       unmarshalJSONB(ext.AssetPaths, []string{}),
		ManifestData:     unmarshalJSONB(ext.ManifestData, map[string]interface{}{}),
		Settings:         unmarshalJSONB(ext.Settings, map[string]interface{}{}),
		Options:          unmarshalJSONB(ext.Options, map[string]interface{}{}),
		Metadata:         unmarshalJSONB(ext.Metadata, map[string]interface{}{}),
		IsEnabled:        ext.IsEnabled,
		IsInstalled:      ext.IsInstalled,
		IsSystemExt:      ext.IsSystemExt,
		InstallSource:    ext.InstallSource,
		SourceURL:        ext.SourceURL,
		Branch:           ext.Branch,
		AutoUpdate:       ext.AutoUpdate,
		LastUpdateCheck:  ext.LastUpdateCheck,
		AvailableVersion: ext.AvailableVersion,
		InstallDate:      ext.InstallDate,
		LastEnabled:      ext.LastEnabled,
		UsageCount:       ext.UsageCount,
		ErrorCount:       ext.ErrorCount,
		LoadTime:         ext.LoadTime,
		CreatedAt:        ext.CreatedAt.Unix(),
		UpdatedAt:        ext.UpdatedAt.Unix(),
	}
}