sleepwake

type Config struct {
	// Enabled controls whether sleep/wake monitoring is active
	Enabled bool `json:"enabled" yaml:"enabled"`

	// HibernateOnSleep controls whether instances are hibernated when system sleeps
	HibernateOnSleep bool `json:"hibernate_on_sleep" yaml:"hibernate_on_sleep"`

	// HibernationMode determines which instances get hibernated
	// - "idle_only": Only hibernate idle instances (default, safest)
	// - "all": Hibernate all except excluded (manual exclusion list)
	// - "manual_only": No automatic hibernation
	HibernationMode HibernationMode `json:"hibernation_mode" yaml:"hibernation_mode"`

	// IdleCheckTimeout is how long to wait when checking if an instance is idle
	// Default: 10 seconds
	IdleCheckTimeout time.Duration `json:"idle_check_timeout" yaml:"idle_check_timeout"`

	// ResumeOnWake controls whether instances are resumed when system wakes
	// Default: false (user must manually resume for control)
	ResumeOnWake bool `json:"resume_on_wake" yaml:"resume_on_wake"`

	// GracePeriod is the time to wait after sleep event before hibernating
	// This allows cancellation if system wakes quickly (e.g., lid closed briefly)
	// Default: 30 seconds
	GracePeriod time.Duration `json:"grace_period" yaml:"grace_period"`

	// ExcludedInstances is a list of instance names that should not be auto-hibernated
	// Useful for critical instances that should never auto-hibernate regardless of idle status
	ExcludedInstances []string `json:"excluded_instances" yaml:"excluded_instances"`

	// StateFilePath is where the sleep/wake state is persisted
	// Default: ~/.prism/sleep_wake_state.json
	StateFilePath string `json:"state_file_path" yaml:"state_file_path"`
}

type Event struct {
	Type      EventType `json:"type"`
	Timestamp time.Time `json:"timestamp"`
	Source    string    `json:"source"` // "iokit", "systemd", "win32", etc.
}

type EventType int

type HibernationMode string

type InstanceManager interface {
	// ListInstances returns the names of all running instances
	ListInstances(ctx context.Context) ([]string, error)

	// IsInstanceIdle checks if an instance is currently idle (low resource usage)
	// This integrates with the existing idle detection system
	IsInstanceIdle(ctx context.Context, instanceName string) (bool, error)

	// HibernateInstance hibernates a single instance
	HibernateInstance(ctx context.Context, instanceName string) error

	// ResumeInstance resumes a hibernated instance
	ResumeInstance(ctx context.Context, instanceName string) error
}

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

type State struct {

	// LastSleepTime is when the system last went to sleep
	LastSleepTime time.Time `json:"last_sleep_time"`

	// LastWakeTime is when the system last woke up
	LastWakeTime time.Time `json:"last_wake_time"`

	// HibernatedInstances tracks which instances were auto-hibernated during sleep
	// Map of instance name -> hibernation time
	HibernatedInstances map[string]time.Time `json:"hibernated_instances"`

	// TotalSleepEvents is the count of sleep events processed
	TotalSleepEvents int64 `json:"total_sleep_events"`

	// TotalWakeEvents is the count of wake events processed
	TotalWakeEvents int64 `json:"total_wake_events"`

	// TotalHibernated is the count of instances hibernated due to sleep
	TotalHibernated int64 `json:"total_hibernated"`

	// TotalResumed is the count of instances resumed due to wake
	TotalResumed int64 `json:"total_resumed"`

	// StateFilePath is where this state is persisted
	StateFilePath string `json:"-"`
	// contains filtered or unexported fields
}

type Stats struct {
	LastSleepTime    time.Time `json:"last_sleep_time"`
	LastWakeTime     time.Time `json:"last_wake_time"`
	TotalSleepEvents int64     `json:"total_sleep_events"`
	TotalWakeEvents  int64     `json:"total_wake_events"`
	TotalHibernated  int64     `json:"total_hibernated"`
	TotalResumed     int64     `json:"total_resumed"`
	ActivelyTracked  int       `json:"actively_tracked"` // Currently hibernated instances
}

type Status struct {
	Enabled             bool              `json:"enabled"`
	Running             bool              `json:"running"`
	Platform            string            `json:"platform"` // "darwin", "linux", "windows"
	HibernateOnSleep    bool              `json:"hibernate_on_sleep"`
	HibernationMode     HibernationMode   `json:"hibernation_mode"`   // "idle_only", "all", "manual_only"
	IdleCheckTimeout    string            `json:"idle_check_timeout"` // e.g., "10s"
	ResumeOnWake        bool              `json:"resume_on_wake"`
	GracePeriod         string            `json:"grace_period"`
	ExcludedInstances   []string          `json:"excluded_instances"`
	Stats               Stats             `json:"stats"`
	HibernatedInstances map[string]string `json:"hibernated_instances"` // name -> time string
}