package main

import (
	"fmt"
	"io"
	"log"
	"os"

	"github.com/chzyer/readline"
)

func main() {
	conf, err := getConfig()
	if err != nil {
		log.Fatal(err)
	}

	state := NewBrowserState()
	state.Quiet = conf.Quiet
	state.Pager = conf.Pager

	rl, err := readline.New(Prompt)
	if err != nil {
		log.Fatal(err)
	}

	marks, err := getMarks()
	if err != nil {
		log.Fatal(err)
	}
	state.Marks = marks

	tours, err := getTours()
	if err != nil {
		log.Fatal(err)
	}
	state.NamedTours = tours

	if conf.VimKeys {
		rl.SetVimMode(true)
	}
	state.Readline = rl

	for {
		rl.SetPrompt(Prompt)
		line, err := rl.Readline()
		if err == io.EOF {
			break
		}
		if err != nil {
			log.Fatal(err)
		}

		if c, err := ParseCommand(line); err != nil {
			writeError(err.Error())
		} else if err := RunCommand(conf, c, state); err != nil {
			writeError(err.Error())
		}
	}
}

const Prompt = "\x1b[38;5;39mX-1\x1b[0m> "

func writeError(msg string) {
	fmt.Fprintf(os.Stdout, "\x1b[31m%s\x1b[0m\n", msg)
}