package main

import (
	"fmt"
	"os"
	"strings"

	"gopkg.in/yaml.v2"
)

type Repo struct {
	URL            string `yaml:"url"`
	Repo           string `yaml:"repo"`
	Branch         string `yaml:"branch"`
	Authentication string `yaml:"authentication"`
	CookieName     string `yaml:"cookieName"`
	CookieValue    string `yaml:"cookieValue"`
}

func (r *Repo) FullURL() string {
	return strings.TrimSuffix(r.URL, "/") + "/" + r.Repo
}

type Workstreams struct {
	OnlyIfTouching []string `yaml:"onlyIfTouching"`
	NeverModify    []string `yaml:"neverModify"`
}

type sites struct {
	Upstream   Repo
	Downstream Repo
}

type configFormat struct {
	Sites       sites                  `yaml:"sites"`
	Workstreams map[string]Workstreams `yaml:"workstreams"`
}

func readConfig(configFile string) *configFormat {
	file, err := os.Open(configFile)
	if err != nil {
		panic(fmt.Sprintf("Could not open '%s': %s", configFile, err))
	}
	defer file.Close()

	cfg := new(configFormat)

	configDecoder := yaml.NewDecoder(file)
	err = configDecoder.Decode(&cfg)
	if err != nil {
		panic(fmt.Sprintf("Failed parsing '%s': %s", configFile, err))
	}

	return cfg
}