package local

import (
	"context"

	"github.com/yaoapp/yao/trace/types"
)

// Driver the local disk storage driver implementation
type Driver struct {
	basePath string // Base directory for storing trace files
}

// New creates a new local driver
func New(basePath string) (*Driver, error) {
	// TODO: Implement initialization (create directories, etc.)
	return &Driver{
		basePath: basePath,
	}, nil
}

// SaveNode persists a node to disk
func (d *Driver) SaveNode(ctx context.Context, traceID string, node *types.TraceNode) error {
	// TODO: Implement disk save
	// File path: {basePath}/{YYYYMMDD}/{traceID}/nodes/{nodeID}.json
	return nil
}

// LoadNode loads a node from disk
func (d *Driver) LoadNode(ctx context.Context, traceID string, nodeID string) (*types.TraceNode, error) {
	// TODO: Implement disk load
	return nil, nil
}

// LoadTrace loads the entire trace tree from disk
func (d *Driver) LoadTrace(ctx context.Context, traceID string) (*types.TraceNode, error) {
	// TODO: Implement disk load trace
	// File path: {basePath}/{YYYYMMDD}/{traceID}/trace.json
	return nil, nil
}

// SaveSpace persists a space to disk
func (d *Driver) SaveSpace(ctx context.Context, traceID string, space *types.TraceSpace) error {
	// TODO: Implement disk save space
	// File path: {basePath}/{YYYYMMDD}/{traceID}/spaces/{spaceID}.json
	return nil
}

// LoadSpace loads a space from disk
func (d *Driver) LoadSpace(ctx context.Context, traceID string, spaceID string) (*types.TraceSpace, error) {
	// TODO: Implement disk load space
	return nil, nil
}

// DeleteSpace removes a space from disk
func (d *Driver) DeleteSpace(ctx context.Context, traceID string, spaceID string) error {
	// TODO: Implement disk delete space
	return nil
}

// ListSpaces lists all space IDs for a trace from disk
func (d *Driver) ListSpaces(ctx context.Context, traceID string) ([]string, error) {
	// TODO: Implement disk list spaces
	return nil, nil
}

// SetSpaceKey stores a value by key in a space
func (d *Driver) SetSpaceKey(ctx context.Context, traceID, spaceID, key string, value any) error {
	// TODO: Implement disk set space key
	// File path: {basePath}/{YYYYMMDD}/{traceID}/spaces/{spaceID}/data.json
	return nil
}

// GetSpaceKey retrieves a value by key from a space
func (d *Driver) GetSpaceKey(ctx context.Context, traceID, spaceID, key string) (any, error) {
	// TODO: Implement disk get space key
	return nil, nil
}

// HasSpaceKey checks if a key exists in a space
func (d *Driver) HasSpaceKey(ctx context.Context, traceID, spaceID, key string) bool {
	// TODO: Implement disk has space key
	return false
}

// DeleteSpaceKey removes a key-value pair from a space
func (d *Driver) DeleteSpaceKey(ctx context.Context, traceID, spaceID, key string) error {
	// TODO: Implement disk delete space key
	return nil
}

// ClearSpaceKeys removes all key-value pairs from a space
func (d *Driver) ClearSpaceKeys(ctx context.Context, traceID, spaceID string) error {
	// TODO: Implement disk clear space keys
	return nil
}

// ListSpaceKeys returns all keys in a space
func (d *Driver) ListSpaceKeys(ctx context.Context, traceID, spaceID string) ([]string, error) {
	// TODO: Implement disk list space keys
	return nil, nil
}

// SaveLog appends a log entry to disk
func (d *Driver) SaveLog(ctx context.Context, traceID string, log *types.TraceLog) error {
	// TODO: Implement disk save log
	// File path: {basePath}/{YYYYMMDD}/{traceID}/logs/{nodeID}.jsonl (append mode)
	return nil
}

// LoadLogs loads all logs for a trace or specific node from disk
func (d *Driver) LoadLogs(ctx context.Context, traceID string, nodeID string) ([]*types.TraceLog, error) {
	// TODO: Implement disk load logs
	// If nodeID is empty, load all logs
	// If nodeID provided, load logs for that node only
	return nil, nil
}

// SaveTraceInfo persists trace metadata to disk
func (d *Driver) SaveTraceInfo(ctx context.Context, info *types.TraceInfo) error {
	// TODO: Implement disk save trace info
	// File path: {basePath}/{YYYYMMDD}/{traceID}/trace_info.json
	return nil
}

// LoadTraceInfo loads trace metadata from disk
func (d *Driver) LoadTraceInfo(ctx context.Context, traceID string) (*types.TraceInfo, error) {
	// TODO: Implement disk load trace info
	return nil, nil
}

// DeleteTrace removes entire trace from disk
func (d *Driver) DeleteTrace(ctx context.Context, traceID string) error {
	// TODO: Implement disk delete trace
	// Delete directory: {basePath}/{YYYYMMDD}/{traceID}/
	return nil
}

// Close closes the local driver
func (d *Driver) Close() error {
	// TODO: Implement cleanup if needed
	return nil
}