// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package polls

import (
	"net/http"

	"github.com/gin-gonic/gin"
	apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
	apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
	"github.com/superseriousbusiness/gotosocial/internal/oauth"
)

// PollVotePOSTHandler swagger:operation POST /api/v1/polls/{id}/vote pollVote
//
// Vote with choices in the given poll.
//
//	---
//	tags:
//	- polls
//
//	produces:
//	- application/json
//
//	parameters:
//	-
//		name: id
//		type: string
//		description: Target poll ID.
//		in: path
//		required: true
//	-
//		name: choices
//		type: array
//		items:
//			type: integer
//		description: Poll choice indices on which to vote.
//		in: formData
//		required: true
//
//	security:
//	- OAuth2 Bearer:
//		- write:statuses
//
//	responses:
//		'200':
//			description: "The updated poll with user vote choices."
//			schema:
//				"$ref": "#/definitions/poll"
//		'400':
//			description: bad request
//		'401':
//			description: unauthorized
//		'403':
//			description: forbidden
//		'404':
//			description: not found
//		'406':
//			description: not acceptable
//		'422':
//			description: unprocessable entity
//		'500':
//			description: internal server error
func (m *Module) PollVotePOSTHandler(c *gin.Context) {
	authed, err := oauth.Authed(c, true, true, true, true)
	if err != nil {
		errWithCode := gtserror.NewErrorUnauthorized(err, err.Error())
		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
		return
	}

	if _, err := apiutil.NegotiateAccept(c, apiutil.JSONAcceptHeaders...); err != nil {
		errWithCode := gtserror.NewErrorNotAcceptable(err, err.Error())
		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
		return
	}

	pollID, errWithCode := apiutil.ParseID(c.Param(IDKey))
	if errWithCode != nil {
		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
		return
	}

	var form apimodel.PollVoteRequest

	if err := c.ShouldBind(&form); err != nil {
		errWithCode := gtserror.NewErrorBadRequest(err, err.Error())
		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
		return
	}

	poll, errWithCode := m.processor.Polls().PollVote(
		c.Request.Context(),
		authed.Account,
		pollID,
		form.Choices,
	)
	if errWithCode != nil {
		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
		return
	}

	c.JSON(http.StatusOK, poll)
}