package keys

import (
	"log"
	"net/http"

	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/types"
	"git.hatecomputers.club/hatecomputers/hatecomputers.club/database"
	"git.hatecomputers.club/hatecomputers/hatecomputers.club/utils"
)

const MAX_USER_API_KEYS = 5

func ListAPIKeysContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
	return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
		typesKeys, err := database.ListUserAPIKeys(context.DBConn, context.User.ID)
		if err != nil {
			log.Println(err)
			resp.WriteHeader(http.StatusInternalServerError)
			return failure(context, req, resp)
		}

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

func CreateAPIKeyContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
	return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
		formErrors := types.BannerMessages{
			Messages: []string{},
		}

		numKeys, err := database.CountUserAPIKeys(context.DBConn, context.User.ID)
		if err != nil {
			log.Println(err)
			resp.WriteHeader(http.StatusInternalServerError)
			return failure(context, req, resp)
		}

		if numKeys >= MAX_USER_API_KEYS {
			formErrors.Messages = append(formErrors.Messages, "max types keys reached")
		}

		if len(formErrors.Messages) > 0 {
			(*context.TemplateData)["Error"] = formErrors
			return failure(context, req, resp)
		}

		_, err = database.SaveAPIKey(context.DBConn, &database.UserApiKey{
			UserID: context.User.ID,
			Key:    utils.RandomId(),
		})
		if err != nil {
			log.Println(err)
			resp.WriteHeader(http.StatusInternalServerError)
			return failure(context, req, resp)
		}

		formSuccess := types.BannerMessages{
			Messages: []string{"key created."},
		}
		(*context.TemplateData)["Success"] = formSuccess
		return success(context, req, resp)
	}
}

func DeleteAPIKeyContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
	return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
		apiKey := req.FormValue("key")

		key, err := database.GetAPIKey(context.DBConn, apiKey)
		if err != nil {
			log.Println(err)
			resp.WriteHeader(http.StatusInternalServerError)
			return failure(context, req, resp)
		}
		if (key == nil) || (key.UserID != context.User.ID) {
			resp.WriteHeader(http.StatusUnauthorized)
			return failure(context, req, resp)
		}

		err = database.DeleteAPIKey(context.DBConn, apiKey)
		if err != nil {
			log.Println(err)
			resp.WriteHeader(http.StatusInternalServerError)
			return failure(context, req, resp)
		}

		formSuccess := types.BannerMessages{
			Messages: []string{"key deleted."},
		}
		(*context.TemplateData)["Success"] = formSuccess

		return success(context, req, resp)
	}
}