// Copyright 2019 Drone IO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package secrets

import (
	"encoding/json"
	"net/http"

	"github.com/drone/drone/core"
	"github.com/drone/drone/handler/api/render"

	"github.com/go-chi/chi"
)

type secretUpdate struct {
	Data            *string `json:"data"`
	PullRequest     *bool   `json:"pull_request"`
	PullRequestPush *bool   `json:"pull_request_push"`
}

// HandleUpdate returns an http.HandlerFunc that processes http
// requests to update a secret.
func HandleUpdate(
	repos core.RepositoryStore,
	secrets core.SecretStore,
) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var (
			namespace = chi.URLParam(r, "owner")
			name      = chi.URLParam(r, "name")
			secret    = chi.URLParam(r, "secret")
		)

		in := new(secretUpdate)
		err := json.NewDecoder(r.Body).Decode(in)
		if err != nil {
			render.BadRequest(w, err)
			return
		}

		repo, err := repos.FindName(r.Context(), namespace, name)
		if err != nil {
			render.NotFound(w, err)
			return
		}

		s, err := secrets.FindName(r.Context(), repo.ID, secret)
		if err != nil {
			render.NotFound(w, err)
			return
		}

		if in.Data != nil {
			s.Data = *in.Data
		}
		if in.PullRequest != nil {
			s.PullRequest = *in.PullRequest
		}
		if in.PullRequestPush != nil {
			s.PullRequestPush = *in.PullRequestPush
		}

		err = s.Validate()
		if err != nil {
			render.BadRequest(w, err)
			return
		}

		err = secrets.Update(r.Context(), s)
		if err != nil {
			render.InternalError(w, err)
			return
		}

		s = s.Copy()
		render.JSON(w, s, 200)
	}
}