filter

type AndExpression struct {
	Left  *Term   `@@`
	Right []*Term `("AND" @@)*`
}

type Comparison struct {
	Left     *PropertyRef `@@`
	Operator string       `@("=" | "!=" | "<>" | ">=" | "<=" | ">" | "<" | "LIKE" | "ILIKE" | "IN")`
	Right    *Value       `@@`
}

type EntityMappingFunctions interface {
	// GetMLMDEntityType maps a REST entity type to its underlying MLMD entity type
	GetMLMDEntityType(restEntityType RestEntityType) EntityType

	// GetPropertyDefinitionForRestEntity returns property definition for a REST entity type
	GetPropertyDefinitionForRestEntity(restEntityType RestEntityType, propertyName string) PropertyDefinition

	// IsChildEntity returns true if the REST entity type uses prefixed names (parentId:name)
	IsChildEntity(entityType RestEntityType) bool
}

type EntityPropertyMap map[string]PropertyDefinition

type EntityType string

type Expression struct {
	Or *OrExpression `@@`
}

type FilterExpression struct {
	Left     *FilterExpression
	Right    *FilterExpression
	Operator string
	Property string
	Value    interface{}
	IsLeaf   bool
}

type OrExpression struct {
	Left  *AndExpression   `@@`
	Right []*AndExpression `("OR" @@)*`
}

type PropertyDefinition struct {
	Location  PropertyLocation
	ValueType string // IntValueType, StringValueType, DoubleValueType, BoolValueType
	Column    string // Database column name (for entity table) or property name (for property table)

	// Fields for related entity properties
	RelatedEntityType RelatedEntityType // Type of related entity (artifact, context, execution)
	RelatedProperty   string            // Property name in the related entity
	JoinTable         string            // Table to join through (e.g., "Attribution", "ParentContext")
}

type PropertyLocation int

type PropertyRef struct {
	EscapedName string   `@EscapedIdent`
	Name        string   `| @Ident`
	Path        []string `("." @Ident)*`
	Type        string   `("." @("string_value" | "double_value" | "int_value" | "bool_value"))?`
}

type PropertyReference struct {
	Name        string
	IsCustom    bool
	ValueType   string             // StringValueType, DoubleValueType, IntValueType, BoolValueType, ArrayValueType
	IsEscaped   bool               // whether the property name was escaped with backticks
	PropertyDef PropertyDefinition // Full property definition for advanced handling
}

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

type RelatedEntityType string

type RestEntityType string

type SingleValue struct {
	String  *string  `@String`
	Integer *int64   `| @Int`
	Float   *float64 `| @Float`
	Boolean *string  `| @("true" | "false" | "TRUE" | "FALSE")`
}

type Term struct {
	Group      *Expression `"(" @@ ")"`
	Comparison *Comparison `| @@`
}

type Value struct {
	String    *string    `@String`
	Integer   *int64     `| @Int`
	Float     *float64   `| @Float`
	Boolean   *string    `| @("true" | "false" | "TRUE" | "FALSE")`
	ValueList *ValueList `| @@`
}

type ValueList struct {
	Values []*SingleValue `"(" (@@  ("," @@)*)? ")"`
}

type WhereClause struct {
	Expression *Expression `@@`
}