editline

type AutoCompleteFn func(entireInput [][]rune, line, col int) (msg string, comp Completions)

type Candidate interface {
	// Replacement is the string to replace.
	Replacement() string

	// MoveRight returns the number of times the cursor
	// should be moved to the right to arrive at the
	// end of the word being replaced by the completion.
	//
	// For example, if the input is this:
	//
	//       alice
	//        ^
	//
	// where the cursor is on the 2nd character, and
	// the completion is able to replace the entire word,
	// MoveRight should return 4.
	MoveRight() int

	// DeleteLeft returns the total number of characters
	// being replaced by the completion, including the
	// characters to the right of the cursor (as returned by MoveRight).
	//
	// For example, if the input is this:
	//
	//       alice
	//        ^
	//
	// where the cursor is on the 2nd character, and
	// the completion is able to replace the entire word,
	// DeleteLeft should return 5.
	DeleteLeft() int
}

type Completions interface {
	// Values is the set of all completion values.
	complete.Values

	// Candidate converts a complete.Entry to a Candidate.
	Candidate(e complete.Entry) Candidate
}

type InputCompleteMsg struct{}

type KeyMap struct {
	textarea.KeyMap

	EndOfInput      key.Binding
	Interrupt       key.Binding
	AutoComplete    key.Binding
	SignalQuit      key.Binding
	SignalTTYStop   key.Binding
	Refresh         key.Binding
	AbortSearch     key.Binding
	SearchBackward  key.Binding
	HistoryPrevious key.Binding
	HistoryNext     key.Binding
	Debug           key.Binding
	HideShowPrompt  key.Binding
	AlwaysNewline   key.Binding
	AlwaysComplete  key.Binding
	MoreHelp        key.Binding
	ReflowLine      key.Binding
	ReflowAll       key.Binding
	ExternalEdit    key.Binding
}

type Model struct {
	// Err is the final state at the end of input.
	// Likely io.EOF or ErrInterrupted.
	Err error

	// KeyMap is the key bindings to use.
	KeyMap KeyMap

	// Styling. FocusedStyle and BlurredStyle are used to style the textarea in
	// focused and blurred states.
	// Only takes effect at Reset() or Focus().
	FocusedStyle Style
	BlurredStyle Style

	// Placeholder is displayed when the editor is still empty.
	// Only takes effect at Reset() or Focus().
	Placeholder string

	// CheckInputComplete is called when the Enter key is pressed.  It
	// determines whether a newline character should be added to the
	// input (callback returns false) or whether the input should
	// terminate altogether (callback returns true). The callback is
	// provided the text of the input and the line number at which the
	// cursor is currently positioned as argument.
	//
	// The default behavior if CheckInputComplete is nil is to terminate
	// the input when enter is pressed.
	CheckInputComplete func(entireInput [][]rune, line, col int) bool

	// AutoComplete is the AutoCompleteFn to use.
	AutoComplete AutoCompleteFn

	// CharLimit is the maximum size of the input in characters.
	// Set to zero or less for no limit.
	CharLimit int

	// MaxHeight is the maximum height of the input in lines.
	// Set to zero or less for no limit.
	MaxHeight int

	// MaxWidth is the maximum width of the input in characters.
	// Set to zero or less for no limit.
	MaxWidth int

	// CursorMode determines how the cursor is displayed.
	CursorMode cursor.Mode

	// MaxHistorySize is the maximum number of entries in the history.
	// Set to zero for no limit.
	MaxHistorySize int

	// DedupHistory if true avoids adding a history entry
	// if it is equal to the last one added.
	DedupHistory bool

	// DeleteCharIfNotEOF, if true, causes the EndOfInput key binding
	// to be translated to delete-character-forward when it is not
	// entered at the beginning of a line.
	// Meant for use when the EndOfInput key binding is Ctrl+D, which
	// is the standard character deletion in textarea/libedit.
	// This can be set to false if the EndOfInput binding is fully
	// separate from DeleteCharacterForward.
	DeleteCharIfNotEOF bool

	// Prompt is the prompt displayed before entry lines.
	// Only takes effect at Reset().
	Prompt string

	// NextPrompt, if defined is the prompt displayed before entry lines
	// after the first one.
	// Only takes effect at Reset().
	NextPrompt string

	// Reflow, if defined, is used for the reflowing commands (M-q/M-Q).
	// The info returned value, if any, is displayed as an informational
	// message above the editor.
	Reflow func(all bool, currentText string, targetWidth int) (changed bool, newText, info string)

	// SearchPrompt is the prompt displayed before the history search pattern.
	SearchPrompt string
	// SearchPromptNotFound is the prompt displayed before the history search pattern,
	// when no match is found.
	SearchPromptNotFound string
	// SearchPromptInvalid is the prompt displayed before the history search pattern,
	// when the pattern is invalid.
	SearchPromptInvalid string

	// CaseSensitiveSearch, if enabled, makes history search case-sensitive.
	CaseSensitiveSearch bool

	// ShowLineNumbers if true shows line numbers at the beginning
	// of each input line.
	// Only takes effect at Reset() or Focus().
	ShowLineNumbers bool
	// contains filtered or unexported fields
}

type Style struct {
	Editor textarea.Style

	SearchInput struct {
		PromptStyle      lipgloss.Style
		TextStyle        lipgloss.Style
		BackgroundStyle  lipgloss.Style
		PlaceholderStyle lipgloss.Style
		CursorStyle      lipgloss.Style
	}
}