package main

import (
	"flag"
	"fmt"
	"os"
	"path/filepath"

	"git.meatbag.se/vlv/shell-history/internal/add"
	"git.meatbag.se/vlv/shell-history/internal/db"
	"git.meatbag.se/vlv/shell-history/internal/importer"
	"git.meatbag.se/vlv/shell-history/internal/search"
	"git.meatbag.se/vlv/shell-history/internal/stats"
	"git.meatbag.se/vlv/shell-history/internal/sync"
)

func main() {
	global := flag.NewFlagSet("verbatim", flag.ExitOnError)
	dbPath := global.String("db", defaultDBPath(), "path to database")
	global.Usage = usage
	global.Parse(os.Args[1:])

	args := global.Args()
	if len(args) < 1 {
		usage()
	}

	cmd := args[0]
	rest := args[1:]

	d, err := db.Open(*dbPath)
	if err != nil {
		fmt.Fprintf(os.Stderr, "verbatim: %v\n", err)
		os.Exit(1)
	}
	defer d.Close()

	switch cmd {
	case "add":
		err = add.Run(d, rest)
	case "search":
		err = search.Run(d, rest)
	case "sync":
		err = sync.Run(d, rest)
	case "import":
		err = importer.Run(d, rest)
	case "stats":
		err = stats.Run(d)
	default:
		usage()
	}

	if err != nil {
		fmt.Fprintf(os.Stderr, "verbatim %s: %v\n", cmd, err)
		os.Exit(1)
	}
}

func defaultDBPath() string {
	home, err := os.UserHomeDir()
	if err != nil {
		return "history.db"
	}
	return filepath.Join(home, ".local", "share", "verbatim", "history.db")
}

func usage() {
	fmt.Fprintln(os.Stderr, `usage: verbatim [--db PATH] <command> [flags]

commands:
  add       record a command
  search    search history
  sync      export, git sync, import
  import    one-time import from log files
  stats     show statistics`)
	os.Exit(1)
}