package main

import (
	"fmt"
	"io/ioutil"
	"os"

	"git.bullercodeworks.com/brian/netcaptain/internal/cli"
)

func (a *AppState) gitMode(parms []string) int {
	var p string
	if len(parms) == 0 {
		cli.PrintErr("Error parsing gitignore parameter")
		return 1
	}
	p = parms[0]
	switch p {
	case "hold": // Ignore just the 'config/hold'
		return a.gitIgnoreHold(parms)
	case "all": // Ignore all of 'config'
		return a.gitIgnoreAll(parms)
	case "none": // Ignore nothing
		return a.gitIgnoreNone(parms)
	default: // Display the current gitignore mode
		return a.gitIgnoreShow(parms)
	}
}

func (a *AppState) gitIgnoreShow(parms []string) int {
	hasGitIgnore := cli.FileExists(a.ConfDir + "/.gitignore")
	// Just outputting the current gitignore status
	if !hasGitIgnore {
		fmt.Println("No git ignore.")
		return 0
	}
	data, err := ioutil.ReadFile(a.ConfDir + "/.gitignore")
	if err != nil {
		cli.PrintErr("Error reading .gitignore")
		return 1
	}
	fmt.Println(string(data))
	return 0
}

func (a *AppState) gitIgnoreHold(parms []string) int {
	f, err := os.OpenFile(a.ConfDir+"/.gitignore", os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0644)
	if err != nil {
		cli.PrintErr(err.Error())
		return 1
	}
	defer f.Close()
	_, err = f.WriteString("holds/")
	if err != nil {
		cli.PrintErr(err.Error())
		return 1
	}
	return 0
}

func (a *AppState) gitIgnoreAll(parms []string) int {
	f, err := os.OpenFile(a.ConfDir+"/.gitignore", os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0644)
	if err != nil {
		cli.PrintErr(err.Error())
		return 1
	}
	defer f.Close()
	_, err = f.WriteString("./")
	if err != nil {
		cli.PrintErr(err.Error())
		return 1
	}
	return 0
}

func (a *AppState) gitIgnoreNone(parms []string) int {
	data, err := ioutil.ReadFile(a.ConfDir + "/.gitignore")
	if err != nil {
		cli.PrintErr("Error reading .gitignore")
		return 1
	}
	fmt.Println(string(data))
	return 0
}