package main

import (

"flag"

"fmt"

"os"

"runtime"

"strings"

"astral-drive/internal/env"

"astral-drive/internal/processor"

"astral-drive/internal/scanner"

"astral-drive/internal/ui"

)

func main() {

topN := flag.Int("n", 20, "表示件数")

workers := flag.Int("w", runtime.NumCPU()*2, "Worker 数")

noColor := flag.Bool("no-color", false, "カラー出力を無効化")

exclude := flag.String("exclude", "", "除外するディレクトリ名（カンマ区切り）例: node_modules,.git")

flag.Usage = func() {

fmt.Fprintf(os.Stderr, "Usage: astral-drive [flags] [path]\n\nFlags:\n")

flag.PrintDefaults()

fmt.Fprintf(os.Stderr, "\nExample:\n astral-drive\n astral-drive -n 10 /home\n astral-drive -exclude node_modules,.git C:\\\n")

}

flag.Parse()

// スキャン対象パスの決定

var roots []string

if flag.NArg() > 0 {

root := flag.Arg(0)

if _, err := os.Stat(root); err != nil {

fmt.Fprintf(os.Stderr, "error: %v\n", err)

os.Exit(1)

}

roots = []string{root}

} else {

roots = env.Detect()

}

// 除外リストを解析

var excludeList []string

if *exclude != "" {

for _, e := range strings.Split(*exclude, ",") {

if t := strings.TrimSpace(e); t != "" {

excludeList = append(excludeList, t)

}

}

}

// スキャン実行

cfg := scanner.Config{

Workers: *workers,

Exclude: excludeList,

}

result, err := scanner.Run(roots, cfg)

if err != nil {

fmt.Fprintf(os.Stderr, "error: %v\n", err)

os.Exit(1)

}

// 上位 N 件を抽出

entries := processor.TopN(result.Sizes, *topN)

// 表示

uiCfg := ui.Config{

NoColor: *noColor,

}

ui.Render(entries, result, uiCfg)

}