main.go

package main

import (
	"flag"
	"net/url"
	"os"
	"strings"

	"github.com/toqueteos/webbrowser"
)

// sample url
// https://www.google.co.jp/search?q=test&ie=utf-8&oe=utf-8&hl=ja

type Ggr struct {
	q   string
	ie  string
	oe  string
	hl  string
	tbm string
}

func NewGgr() Ggr {
	g := Ggr{
		q:   "",
		ie:  "utf-8",
		oe:  "utf-8",
		hl:  "ja",
		tbm: "",
	}
	return g
}

func (p Ggr) getSearchURL() string {
	values := url.Values{}
	values.Add("q", p.q)
	values.Add("ie", p.ie)
	values.Add("oe", p.oe)
	values.Add("hl", p.hl)
	values.Add("tbm", p.tbm)
	u := url.URL{}
	u.Scheme = "https"
	u.Host = "www.google.co.jp"
	u.Path = "search"
	u.RawQuery = values.Encode()
	return u.String()
}

func main() {
	var (
		imageFlag bool
		newsFlag  bool
		shopFlag  bool
	)

	f := flag.NewFlagSet(os.Args[0], flag.ExitOnError)
	f.BoolVar(&imageFlag, "i", false, "image flag")
	f.BoolVar(&newsFlag, "n", false, "new flag")
	f.BoolVar(&shopFlag, "s", false, "shop flag")

	f.Parse(os.Args[1:])
	args := f.Args()

	g := NewGgr()
	g.q = strings.Join(args, " ")
	if imageFlag {
		g.tbm = "isch"
	} else if newsFlag {
		g.tbm = "nws"
	} else if shopFlag {
		g.tbm = "shop"
	}
	webbrowser.Open(g.getSearchURL())
}