package main

import (
	"errors"
	"os"
	"path/filepath"
	"strings"

	"go.wit.com/lib/config"
	"go.wit.com/lib/protobuf/zoopb"
	"go.wit.com/log"
)

func moveOutOfIncoming(fullname string) error {
	_, filename := filepath.Split(fullname)
	parts := strings.Split(filename, "_")
	if len(parts) != 3 {
		// todo: add more filename checking here (check for ".deb")
		return errors.New(log.Sprintf("bad filenae %s", filename))
	}
	packageName := parts[0]
	letteredDir := log.Sprintf("%1.1s", filename)
	newfilename := filepath.Join("pool/main", letteredDir, packageName, filename)

	destDir := filepath.Dir(newfilename)
	if err := os.MkdirAll(destDir, 0755); err != nil {
		log.Printf("%s  move incoming oldname %s newname: %s\n", packageName, fullname, newfilename)
		log.Fatal("Failed to create destination directory: %v", err)
	}
	log.Printf("%s  move incoming oldname %s newname: %s\n", packageName, fullname, newfilename)
	if config.Exists(newfilename) {
		log.Info("DEBIAN POLICY: YOU CAN NEVER REBUILD THE SAME FILE. APT WILL NOT REINSTALL IT.")
		log.Info("AUTO REMOVING", fullname)
		return os.Remove(fullname)
	}
	if argv.Force {
		// file can be moved
		os.Rename(fullname, newfilename)
	}
	log.Printf("%s  moved incoming oldname %s newname: %s\n", packageName, fullname, newfilename)
	return nil
}

func doIncoming(pb *zoopb.Packages) (string, error) {
	if err := os.Chdir(me.pb.BaseDir); err != nil {
		return "no dir " + me.pb.BaseDir, err
	}

	globPattern := "/home/mirrors/wit/incoming/*.deb"
	files, err := filepath.Glob(globPattern)
	if err != nil {
		return "glob error", err
	}

	for _, filename := range files {
		log.Info("need to move", filename)
		moveOutOfIncoming(filename)
	}

	s := log.Sprintf("scanned (%d) in incoming", len(files))
	return s, err
}