collection

type Collection struct {
	Filename string // Just informative...

	Rows []*Row

	Indexes map[string]*collectionIndex // todo: protect access with mutex or use sync.Map
	// buffer   *bufio.Writer // TODO: use write buffer to improve performance (x3 in tests)
	Defaults map[string]any
	// contains filtered or unexported fields
}

type Command struct {
	Name      string          `json:"name"`
	Uuid      string          `json:"uuid"`
	Timestamp int64           `json:"timestamp"`
	StartByte int64           `json:"start_byte"`
	Payload   json.RawMessage `json:"payload"`
}

type CreateIndexCommand struct {
	Name    string      `json:"name"`
	Type    string      `json:"type"`
	Options interface{} `json:"options"`
}

type CreateIndexOptions struct {
	Name    string      `json:"name"`
	Type    string      `json:"type"`
	Options interface{} `json:"options"`
}

type DropIndexCommand struct {
	Name string `json:"name"`
}

type Index interface {
	AddRow(row *Row) error
	RemoveRow(row *Row) error
	Traverse(options []byte, f func(row *Row) bool) // todo: return error?
}

type IndexBTreeOptions struct {
	Fields []string `json:"fields"`
	Sparse bool     `json:"sparse"`
	Unique bool     `json:"unique"`
}

type IndexBtree struct {
	Btree   *btree.BTreeG[*RowOrdered]
	Options *IndexBTreeOptions
}

type IndexBtreeTraverse struct {
	Reverse bool                   `json:"reverse"`
	From    map[string]interface{} `json:"from"`
	To      map[string]interface{} `json:"to"`
}

type IndexMap struct {
	Entries map[string]*Row
	RWmutex *sync.RWMutex
	Options *IndexMapOptions
}

type IndexMapOptions struct {
	Field  string `json:"field"`
	Sparse bool   `json:"sparse"`
}

type IndexMapTraverse struct {
	Value string `json:"value"`
}

type Row struct {
	I       int // position in Rows
	Payload json.RawMessage
}

type RowOrdered struct {
	*Row
	Values []interface{}
}