package roblox

import (
	"fmt"
	"io"
	"io/ioutil"
	"net/http"
	"net/url"
	"strconv"
	"strings"
)

type AssetUploadOptions struct {
	Name        string
	AssetID     int
	Description string
	Public      bool
	Comments    bool
	Group       int
}

type AssetUploadResponse struct {
	AssetID        int64 `json:"AssetId"`
	AssetVersionID int64 `json:"AssetVersionId"`
}

func (s *Session) CreateAsset(options *AssetUploadOptions, f io.Reader) (int, error) {
	endpoint, err := url.Parse("https://data.roblox.com/Data/Upload.ashx?json=1&type=Model&genreTypeId=1")
	if err != nil {
		return -1, err
	}

	query := endpoint.Query()
	query.Set("name", options.Name)
	query.Set("description", options.Description)
	query.Set("assetid", strconv.Itoa(options.AssetID))

	// Comments
	if options.Comments {
		query.Set("allowComments", "true")
	} else {
		query.Set("allowComments", "false")
	}

	// Public
	if options.Public {
		query.Set("ispublic", "true")
	} else {
		query.Set("ispublic", "false")
	}

	// Group
	if options.Group > 0 {
		query.Set("groupId", strconv.Itoa(options.Group))
	}

	endpoint.RawQuery = query.Encode()

	req, err := http.NewRequest("POST", endpoint.String(), nil)
	req.Header.Set("user-agent", "Roblox")

	// Perform request
	resp, err := s.client.Do(req)
	if err != nil {
		return -1, err
	}
	defer resp.Body.Close()

	if resp.StatusCode == 403 && resp.Header.Get("X-Csrf-Token") != "" {
		req, err := http.NewRequest("POST", endpoint.String(), f)
		req.Header.Set("user-agent", "Roblox")
		req.Header.Set("x-csrf-token", strings.Trim(resp.Header["X-Csrf-Token"][0], " "))
		// Perform request
		resp, err = s.client.Do(req)
		if err != nil {
			return -1, err
		}
		defer resp.Body.Close()
	}

	if resp.StatusCode != 200 {
		return -1, fmt.Errorf(resp.Status)
	}

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return -1, err
	}

	return strconv.Atoi(string(body))
}

func (s *Session) Download(id int) (io.Reader, error) {
	resp, err := s.client.Get("https://assetgame.roblox.com/Asset/?id=" + strconv.Itoa(id))
	if err != nil {
		return nil, err
	}

	if resp.StatusCode != 200 {
		return nil, fmt.Errorf(resp.Status)
	}

	return resp.Body, nil
}