package webfinder

import (
	"errors"
	"github.com/gin-gonic/gin"
	"net/http"
	"strings"
)

func Get(c *gin.Context) {
	res := c.Query("resource")
	if res == "" {
		c.String(http.StatusBadRequest, "Missing 'resouce' query parameter in webfinger")
		return
	}

	address, err := getAddress(res)
	if err != nil {
		c.String(http.StatusBadRequest, err.Error())
	}
	// TODO find group???
	actor, err := atAddress(address)
	if err != nil {
		if _, ok := err.(*badAddressError); ok {
			c.String(http.StatusBadRequest, "Incorrect address format")
			return
		}

		c.String(http.StatusBadRequest, err.Error())
		return
	}
	if actor == nil {
		c.String(http.StatusBadRequest, "Account not found")
	}

	c.JSON(http.StatusOK, actor)
}

func getAddress(res string) (string, error) {
	args := strings.Split(res, ":")
	if args[0] != "acct" {
		return "", errors.New("Resource didn`t start with acct")
	}
	return args[1], nil
}