package common

import (
	"encoding/json"
	"io"
	"strings"
)

type Head struct {
	Ref  string
	Repo Repository
	Sha  string
}

type PullRequest struct {
	Id     int
	Url    string
	Number int
	State  string

	Base   Head
	Labels []string
	Head   Head

	User User
}

type PullRequestAction struct {
	Action string
	Number int

	Pull_Request PullRequest
	Repository   Repository
	Sender       User
}

func (h *RequestHandler) parsePullRequest(data io.Reader) *PullRequestAction {
	if h.HasError() {
		return nil
	}

	var action PullRequestAction
	h.Error = json.NewDecoder(data).Decode(&action)

	if h.HasError() {
		h.ErrLogger.Printf("Got error while parsing: %v\n", h.Error)
		return nil
	}

	repoIdx := strings.LastIndex(action.Repository.Ssh_Url, "/")
	if repoIdx == -1 || action.Repository.Ssh_Url[repoIdx+1:] != action.Repository.Name+".git" {
		h.ErrLogger.Printf("Unexpected URL for SSH repository: '%s'\n", action.Repository.Name)
		h.ErrLogger.Printf("%#v\n", action)
		return nil
	}
	h.PrjGit = action.Repository.Ssh_Url[:repoIdx+1] + DefaultGitPrj + ".git"
	h.Data = &action

	// sanity checks on request
	return &action
}

func (h *RequestHandler) parsePullRequestSync(data io.Reader) *PullRequestAction {
	return h.parsePullRequest(data)
}