session

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

type Item struct {
	// Message holds a regular conversation message
	Message *Message `json:"message,omitempty"`

	// SubSession holds a complete sub-session from task transfers
	SubSession *Session `json:"sub_session,omitempty"`

	// Summary is a summary of the session up until this point
	Summary string `json:"summary,omitempty"`
}

type Message struct {
	AgentName string       `json:"agentName"` // TODO: rename to agent_name
	Message   chat.Message `json:"message"`
	// Implicit is an optional field to indicate if the message shouldn't be shown to the user. It's needed for special  situations
	// like when an agent transfers a task to another agent - new session is created with a default user message, but this shouldn't be shown to the user.
	// Such messages should be marked as true
	Implicit bool `json:"implicit,omitempty"`
}

type MessageUsageRecord struct {
	AgentName string     `json:"agent_name"`
	Model     string     `json:"model"`
	Cost      float64    `json:"cost"`
	Usage     chat.Usage `json:"usage"`
}

type Migration struct {
	ID          int
	Name        string
	Description string
	UpSQL       string
	DownSQL     string
	AppliedAt   time.Time
}

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

type Opt func(s *Session)

type PermissionsConfig struct {
	// Allow lists tool name patterns that are auto-approved without user confirmation.
	Allow []string `json:"allow,omitempty"`
	// Deny lists tool name patterns that are always rejected.
	Deny []string `json:"deny,omitempty"`
}

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

type Session struct {
	// ID is the unique identifier for the session
	ID string `json:"id"`

	// Title is the title of the session, set by the runtime
	Title string `json:"title"`

	// Messages holds the conversation history (messages and sub-sessions)
	Messages []Item `json:"messages"`

	// CreatedAt is the time the session was created
	CreatedAt time.Time `json:"created_at"`

	// ToolsApproved is a flag to indicate if the tools have been approved
	ToolsApproved bool `json:"tools_approved"`

	// Thinking is a session-level flag to enable thinking/interleaved thinking
	// defaults for all providers. When false, providers will not apply auto-thinking budgets
	// or interleaved thinking, regardless of model config. This is controlled by the /think
	// command in the TUI. Defaults to true (thinking enabled).
	Thinking bool `json:"thinking"`

	// HideToolResults is a flag to indicate if tool results should be hidden
	HideToolResults bool `json:"hide_tool_results"`

	// WorkingDir is the base directory used for filesystem-aware tools
	WorkingDir string `json:"working_dir,omitempty"`

	// SendUserMessage is a flag to indicate if the user message should be sent
	SendUserMessage bool

	// MaxIterations is the maximum number of agentic loop iterations to prevent infinite loops
	// If 0, there is no limit
	MaxIterations int `json:"max_iterations"`

	// Starred indicates if this session has been starred by the user
	Starred bool `json:"starred"`

	InputTokens  int64   `json:"input_tokens"`
	OutputTokens int64   `json:"output_tokens"`
	Cost         float64 `json:"cost"`

	// Permissions holds session-level permission overrides.
	// When set, these are evaluated before team-level permissions.
	Permissions *PermissionsConfig `json:"permissions,omitempty"`

	// AgentModelOverrides stores per-agent model overrides for this session.
	// Key is the agent name, value is the model reference (e.g., "openai/gpt-4o" or a named model from config).
	// When a session is loaded, these overrides are reapplied to the runtime.
	AgentModelOverrides map[string]string `json:"agent_model_overrides,omitempty"`

	// CustomModelsUsed tracks custom models (provider/model format) used during this session.
	// These are shown in the model picker for easy re-selection.
	CustomModelsUsed []string `json:"custom_models_used,omitempty"`

	// ParentID indicates this is a sub-session created by task transfer.
	// Sub-sessions are not persisted as standalone entries; they are embedded
	// within the parent session's Messages array.
	ParentID string `json:"-"`

	// MessageUsageHistory stores per-message usage data for remote mode.
	// In remote mode, messages are managed server-side, so we track usage separately.
	// This is not persisted (json:"-") as it's only needed for the current session display.
	MessageUsageHistory []MessageUsageRecord `json:"-"`
}

type Store interface {
	AddSession(ctx context.Context, session *Session) error
	GetSession(ctx context.Context, id string) (*Session, error)
	GetSessions(ctx context.Context) ([]*Session, error)
	GetSessionSummaries(ctx context.Context) ([]Summary, error)
	DeleteSession(ctx context.Context, id string) error
	UpdateSession(ctx context.Context, session *Session) error
	SetSessionStarred(ctx context.Context, id string, starred bool) error
}

type Summary struct {
	ID        string
	Title     string
	CreatedAt time.Time
	Starred   bool
}