const SupportsColorEscapes = true

type Colors struct {
	Default string
	Bold    string
	Dim     string

	Red   string
	Green string
	Blue  string

	Cyan    string
	Magenta string
	Yellow  string

	Underline string
}

type Loc struct {
	// This is the 0-based index of this location from the start of the file, in bytes
	Start int32
}

type Log struct {
	AddMsg    func(Msg)
	HasErrors func() bool
	Done      func() []Msg
}

type LogLevel int8

const (
	LevelNone LogLevel = iota
	LevelInfo
	LevelWarning
	LevelError
	LevelSilent
)

type Msg struct {
	Kind  MsgKind
	Data  MsgData
	Notes []MsgData
}

type MsgData struct {
	Text     string
	Location *MsgLocation

	// Optional user-specified data that is passed through unmodified
	UserDetail interface{}
}

type MsgDetail struct {
	Path    string
	Line    int
	Column  int
	Message string

	SourceBefore string
	SourceMarked string
	SourceAfter  string

	Indent string
	Marker string

	ContentAfter string
}

type MsgKind uint8

const (
	Error MsgKind = iota
	Warning
	Note
)

type MsgLocation struct {
	File      string
	Namespace string
	Line      int // 1-based
	Column    int // 0-based, in bytes
	Length    int // in bytes
	LineText  string
}

type OutputOptions struct {
	IncludeSource bool
	ErrorLimit    int
	Color         UseColor
	LogLevel      LogLevel

	// This is used with watch mode
	NewlineBeforeFirstMessage bool
}

type Path struct {
	Text      string
	Namespace string
}

type Range struct {
	Loc Loc
	Len int32
}

type SortableMsgs []Msg

type Source struct {
	Index uint32

	// This is used as a unique key to identify this source file. It should never
	// be shown to the user (e.g. never print this to the terminal).
	//
	// If it's marked as an absolute path, it's a platform-dependent path that
	// includes environment-specific things such as Windows backslash path
	// separators and potentially the user's home directory. Only use this for
	// passing to syscalls for reading and writing to the file system. Do not
	// include this in any output data.
	//
	// If it's marked as not an absolute path, it's an opaque string that is used
	// to refer to an automatically-generated module.
	KeyPath Path

	// This is used for error messages and the metadata JSON file.
	//
	// This is a mostly platform-independent path. It's relative to the current
	// working directory and always uses standard path separators. Use this for
	// referencing a file in all output data. These paths still use the original
	// case of the path so they may still work differently on file systems that
	// are case-insensitive vs. case-sensitive.
	PrettyPath string

	// An identifier that is mixed in to automatically-generated symbol names to
	// improve readability. For example, if the identifier is "util" then the
	// symbol for an "export default" statement will be called "util_default".
	IdentifierName string

	Contents string
}

type SummaryTable []SummaryTableEntry

type SummaryTableEntry struct {
	Dir         string
	Base        string
	Size        string
	Bytes       int
	IsSourceMap bool
}

type TerminalInfo struct {
	IsTTY           bool
	UseColorEscapes bool
	Width           int
}

type UseColor uint8

const (
	ColorIfTerminal UseColor = iota
	ColorNever
	ColorAlways
)