Add editor packages

2026-10-26 02:32:03 +00:00
parent 38714f6c80
commit 4ed2ee97e0
23 changed files with 2114 additions and 0 deletions
@@ -0,0 +1,119 @@
+package editor
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log/slog"
+	"runtime/debug"
+
+	"code.chimeric.al/dwrz/wen/internal/editor/event"
+)
+
+func (e *Editor) Run(ctx context.Context, files []string) error {
+	ctx, cancel := context.WithCancel(ctx)
+	defer cancel()
+
+	if err := e.terminal.SetRaw(); err != nil {
+		return fmt.Errorf("failed to set raw mode: %w", err)
+	}
+	e.canvas.Reset()
+
+	// Log build info.
+	var commit, time string
+	bi, ok := debug.ReadBuildInfo()
+	if ok {
+		for _, s := range bi.Settings {
+			switch s.Key {
+			case "vcs.revision":
+				commit = s.Value
+			case "vcs.time":
+				time = s.Value
+			}
+		}
+	}
+	e.log.Debug(
+		"文 version",
+		slog.String("commit", commit),
+		slog.String("time", time),
+	)
+
+	// Reset the terminal before exiting.
+	defer func() {
+		e.canvas.Reset()
+
+		if err := e.terminal.Reset(); err != nil {
+			e.log.Error(
+				"failed to reset terminal attributes",
+				slog.Any("error", err),
+			)
+		}
+	}()
+
+	// Start reading user input.
+	// The reader may be blocked in a read when the editor ends.
+	// The reader stops when the process stops.
+	go func() {
+		if err := e.reader.Run(ctx); err != nil && !errors.Is(err, context.Canceled) {
+			e.events <- event.NewError(err)
+		}
+	}()
+
+	// Open the files and render the initial state.
+	e.load(files)
+	if err := e.canvas.Render(e.active, e.prompt); err != nil {
+		return fmt.Errorf("failed to render: %w", err)
+	}
+
+	// Main loop.
+	for {
+		select {
+		case <-ctx.Done():
+			e.log.DebugContext(ctx, "context done: stopping")
+			return nil
+
+		case ev := <-e.events:
+			switch t := ev.(type) {
+			case *event.Error:
+				return t
+
+			case *event.Message:
+				e.prompt.SetText(t.Text())
+
+				if err := e.canvas.Render(
+					e.active, e.prompt,
+				); err != nil {
+					return fmt.Errorf(
+						"failed to render: %w", err,
+					)
+				}
+
+			case *event.Quit:
+				return nil
+			}
+
+		case event := <-e.input:
+			if e.prompt.IsPrompt() {
+				if err := e.promptInput(event); err != nil {
+					return fmt.Errorf(
+						"failed to process input: %w",
+						err,
+					)
+				}
+			} else {
+				if err := e.bufferInput(event); err != nil {
+					return fmt.Errorf(
+						"failed to process input: %w",
+						err,
+					)
+				}
+			}
+
+			if err := e.canvas.Render(
+				e.active, e.prompt,
+			); err != nil {
+				return fmt.Errorf("failed to render: %w", err)
+			}
+		}
+	}
+}