package workspaceruntime

import (
	"context"
	"fmt"
	"os"
	"path/filepath"
	"runtime"

	"inbox/internal/app/lanegit"
)

type hostInboxBinary struct {
	projectRoot string
	runner      lanegit.Runner
}

func (b *hostInboxBinary) ensure(ctx context.Context) (string, error) {
	binaryPath := filepath.Join(b.projectRoot, ".runtime", "bin", "inbox")
	needsBuild, err := b.needsBuild(binaryPath)
	if err != nil {
		return "", err
	}
	if !needsBuild {
		return binaryPath, nil
	}
	if err := os.MkdirAll(filepath.Dir(binaryPath), 0755); err != nil {
		return "", fmt.Errorf("create runtime bin dir: %w", err)
	}
	env := map[string]string{
		"GOOS":   "linux",
		"GOARCH": runtime.GOARCH,
	}
	out, err := b.runner.Run(ctx, filepath.Join(b.projectRoot, "inbox"), env, "go", "build", "-o", binaryPath, "./cmd/inbox")
	if err != nil {
		return "", commandError("build inbox binary", out, err)
	}
	return binaryPath, nil
}

func (b *hostInboxBinary) needsBuild(binaryPath string) (bool, error) {
	return sourceTreeNeedsBuild(b.projectRoot, "inbox", binaryPath)
}