package profiles

import (
	"log"
	"net/http"

	"git.hatecomputers.club/hatecomputers/hatecomputers.club/adapters/files"
	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/types"
	"git.hatecomputers.club/hatecomputers/hatecomputers.club/database"
)

const MaxAvatarSize = 1024 * 1024 * 2 // 2MB
const AvatarPath = "avatars/"
const AvatarPrefix = "/uploads/avatars/"

func GetProfileContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
	return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
		if context.User == nil {
			return failure(context, req, resp)
		}

		(*context.TemplateData)["Profile"] = context.User
		return success(context, req, resp)
	}
}

func UpdateProfileContinuation(fileAdapter files.FilesAdapter, maxAvatarSize int, avatarPath string, avatarPrefix string) func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
	return func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
		return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
			formErrors := types.FormError{
				Errors: []string{},
			}

			err := req.ParseMultipartForm(int64(maxAvatarSize))
			if err != nil {
				log.Println(err)

				formErrors.Errors = append(formErrors.Errors, "avatar file too large")
			}

			if len(formErrors.Errors) == 0 {
				file, _, err := req.FormFile("avatar")
				if file == nil {
					formErrors.Errors = append(formErrors.Errors, "avatar required")
				}
				if err != nil {
					formErrors.Errors = append(formErrors.Errors, "error uploading avatar")
				} else {
					defer file.Close()

					_, err = fileAdapter.CreateFile(avatarPath+context.User.ID, file)
					if err != nil {
						log.Println(err)
						formErrors.Errors = append(formErrors.Errors, "error saving avatar")
					}
				}
			}

			bio := req.FormValue("bio")
			location := req.FormValue("location")
			website := req.FormValue("website")
			if len(bio) > 128 {
				formErrors.Errors = append(formErrors.Errors, "bio too long, keep it to 128")
			}
			if len(location) > 32 {
				formErrors.Errors = append(formErrors.Errors, "location too long, keep it to 32")
			}
			if len(website) > 64 {
				formErrors.Errors = append(formErrors.Errors, "website too long, keep it to 64")
			}

			if len(formErrors.Errors) == 0 {
				context.User.Bio = bio
				context.User.Location = location
				context.User.Website = website
				context.User.Avatar = avatarPrefix + context.User.ID

				_, err = database.SaveUser(context.DBConn, context.User)
				if err != nil {
					formErrors.Errors = append(formErrors.Errors, "error saving profile")
				}
			}

			(*context.TemplateData)["Profile"] = context.User
			(*context.TemplateData)["FormError"] = formErrors

			if len(formErrors.Errors) > 0 {
				log.Println(formErrors.Errors)

				resp.WriteHeader(http.StatusBadRequest)
				return failure(context, req, resp)
			}

			return success(context, req, resp)
		}
	}
}