1 files changed, 155 insertions, 0 deletions
diff --git a/internal/tui/app.go b/internal/tui/app.go
new file mode 100644
index 0000000..066fa28
--- /dev/null
+++ b/internal/tui/app.go
@@ -0,0 +1,155 @@
+package tui
+
+import (
+	"os"
+
+	"tui-ascii-mapper/internal/config"
+	"tui-ascii-mapper/internal/mapio"
+	"tui-ascii-mapper/internal/model"
+
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+type FilePickerState struct {
+	Files    []os.DirEntry
+	CurDir   string
+	Selected int
+	PopupX   int
+	PopupY   int
+	ListTop  int
+}
+
+type ColorPickerState struct {
+	Active   bool
+	Cursor   model.Point
+	Selected []string
+	ForText  bool
+	GridX    int
+	GridY    int
+}
+
+type AppModel struct {
+	map_        *model.Map
+	rootMap     *model.Map
+	cursor      model.Point
+	offset      model.Point
+	prevCursor  model.Point
+
+	tool       model.Tool
+	selected   int
+	brushWidth int
+	unicode    bool
+	colorMode  bool
+	fillShapes bool
+
+	mode   model.Mode
+	dialog model.DialogType
+
+	ti        textinput.Model
+
+	lineStart     model.Point
+	linePreview   []model.Point
+	rectStart     model.Point
+	rectPreview   []model.Point
+	circleCenter  model.Point
+	circlePreview []model.Point
+
+	textEditing      bool
+	textInput        textinput.Model
+	textColor        string
+	movingLabel      int
+	dragLabelOrigin  model.Point
+	dragMouseOrigin  model.Point
+	textCursorStart  model.Point
+
+	mouseDown  bool
+	mouseBtn   int
+	mouseStart model.Point
+	lastPaint  model.Point
+	drawHeld   bool
+	eraseHeld  bool
+
+	undo       *model.UndoStack
+
+	width      int
+	height     int
+	quitting   bool
+	cfg        config.Config
+	dialogMsg  string
+
+	colorPicker   *ColorPickerState
+	dirty         bool
+	undoPosAtSave int
+	hotkeySelect  [10]int
+	palettePage   int
+	filePicker    *FilePickerState
+}
+
+func (m *AppModel) curMap() *model.Map { return m.map_ }
+
+func (m *AppModel) curPalette() []model.Terrain {
+	if m.map_ != nil {
+		return m.map_.Palette
+	}
+	return nil
+}
+
+func NewAppModel(cfg config.Config) *AppModel {
+	palette := make([]model.Terrain, len(cfg.Symbols))
+	copy(palette, cfg.Symbols)
+	root := model.NewMap("untitled", cfg.DefaultMapWidth, cfg.DefaultMapHeight, palette)
+
+	undo := &model.UndoStack{}
+	undo.Push(root)
+	undoAtSave := undo.Pos()
+
+	ti := textinput.New()
+	ti.Placeholder = ""
+	ti.Prompt = ""
+	ti.CharLimit = 64
+
+	textTI := textinput.New()
+	textTI.Placeholder = ""
+	textTI.Prompt = ""
+	textTI.CharLimit = 256
+
+	return &AppModel{
+		map_:      root,
+		rootMap:   root,
+		cursor:    model.Point{X: 0, Y: 0},
+		prevCursor: model.Point{X: -1, Y: -1},
+		tool:      model.ToolBrush,
+		brushWidth: 1,
+		selected:  0,
+		unicode:   true,
+		colorMode: true,
+		mode:      model.ModeNormal,
+		undo:      undo,
+		cfg:       cfg,
+		ti:        ti,
+		textInput: textTI,
+		movingLabel: -1,
+		lastPaint:   model.Point{X: -1, Y: -1},
+		undoPosAtSave: undoAtSave,
+	}
+}
+
+func (m *AppModel) Init() tea.Cmd {
+	return tea.Batch(
+		textinput.Blink,
+		tea.EnableMouseCellMotion,
+	)
+}
+
+func (m *AppModel) loadMapCmd(path string) tea.Cmd {
+	return func() tea.Msg {
+		md, err := mapio.DeserializeMap(path)
+		return mapLoadedMsg{data: md, err: err}
+	}
+}
+
+type mapLoadedMsg struct {
+	data *model.Map
+	err  error
+}