session

type BranchInfo struct {
	Name        string    `json:"name"`        // Human-readable branch name
	Description string    `json:"description"` // Branch description
	IsMain      bool      `json:"is_main"`     // Whether this is the main branch
	IsMerged    bool      `json:"is_merged"`   // Whether this branch was merged back
	MergedFrom  []string  `json:"merged_from"` // List of branch IDs that were merged
	CreatedAt   time.Time `json:"created_at"`
	CreatedBy   string    `json:"created_by"` // What created this branch (user, system, auto)
}

type Cache struct {
	// contains filtered or unexported fields
}

type CacheConfig struct {
	MaxSize      int           // Maximum number of sessions to cache
	DefaultTTL   time.Duration // Default TTL for cache entries
	CleanupIntvl time.Duration // Interval for cleanup routine
}

type CacheStats struct {
	Hits        int64
	Misses      int64
	Evictions   int64
	Expirations int64
	Size        int
	MaxSize     int
}

type CachedSession struct {
	Session      *Session
	AccessCount  int
	CreatedAt    time.Time
	LastAccessed time.Time
	ExpiresAt    time.Time
	Size         int // Estimated size in bytes
}

type Manager struct {
	// contains filtered or unexported fields
}

type Media struct {
	Type     string `json:"type"`             // image, video, audio, document
	URL      string `json:"url"`              // 文件URL
	Base64   string `json:"base64,omitempty"` // Base64编码内容
	MimeType string `json:"mimetype"`         // MIME类型
}

type Message struct {
	Role       string                 `json:"role"` // user, assistant, system, tool
	Content    string                 `json:"content"`
	Media      []Media                `json:"media,omitempty"`
	Timestamp  time.Time              `json:"timestamp"`
	Metadata   map[string]interface{} `json:"metadata,omitempty"`
	ToolCallID string                 `json:"tool_call_id,omitempty"` // For tool role
	ToolCalls  []ToolCall             `json:"tool_calls,omitempty"`   // For assistant role
}

type PruneConfig struct {
	Strategy           PruneStrategy
	MaxTotalSessions   int
	MaxTotalMessages   int
	MaxTotalTokens     int
	DefaultMessageTTL  time.Duration
	DMPreserveCount    int // Minimum messages to preserve in DM
	GroupPreserveCount int // Minimum messages to preserve in group
}

type PruneStats struct {
	TotalPrunes     int64
	MessagesPruned  int64
	SessionsPruned  int64
	TokensReclaimed int64
	LastPruneAt     time.Time
}

type PruneStrategy string

type Pruner struct {
	// contains filtered or unexported fields
}

type Session struct {
	Key       string                 `json:"key"`
	Messages  []Message              `json:"messages"`
	CreatedAt time.Time              `json:"created_at"`
	UpdatedAt time.Time              `json:"updated_at"`
	Metadata  map[string]interface{} `json:"metadata,omitempty"`
	// contains filtered or unexported fields
}

type SessionDiff struct {
	ID1             string    `json:"id1"`
	ID2             string    `json:"id2"`
	Messages1       int       `json:"messages1"`
	Messages2       int       `json:"messages2"`
	AddedMessages   int       `json:"added_messages"`
	RemovedMessages int       `json:"removed_messages"`
	AddedContent    []Message `json:"added_content,omitempty"`
	RemovedContent  []Message `json:"removed_content,omitempty"`
}

type SessionNode struct {
	ID         string      `json:"id"`
	Session    *Session    `json:"session"`
	ParentID   string      `json:"parent_id,omitempty"`
	ChildIDs   []string    `json:"child_ids,omitempty"`
	BranchInfo *BranchInfo `json:"branch_info,omitempty"`
	CreatedAt  time.Time   `json:"created_at"`
}

type SessionTree struct {
	// contains filtered or unexported fields
}

type ToolCall struct {
	ID     string                 `json:"id"`
	Name   string                 `json:"name"`
	Params map[string]interface{} `json:"params"`
}

type TreeStatistics struct {
	TotalNodes  int `json:"total_nodes"`
	MaxDepth    int `json:"max_depth"`
	ActualDepth int `json:"actual_depth"`
	BranchCount int `json:"branch_count"`
	MergedCount int `json:"merged_count"`
}