// 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 processing

import (
	"github.com/superseriousbusiness/gotosocial/internal/cleaner"
	"github.com/superseriousbusiness/gotosocial/internal/email"
	"github.com/superseriousbusiness/gotosocial/internal/federation"
	"github.com/superseriousbusiness/gotosocial/internal/filter/interaction"
	"github.com/superseriousbusiness/gotosocial/internal/filter/visibility"
	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
	mm "github.com/superseriousbusiness/gotosocial/internal/media"
	"github.com/superseriousbusiness/gotosocial/internal/oauth"
	"github.com/superseriousbusiness/gotosocial/internal/processing/account"
	"github.com/superseriousbusiness/gotosocial/internal/processing/admin"
	"github.com/superseriousbusiness/gotosocial/internal/processing/advancedmigrations"
	"github.com/superseriousbusiness/gotosocial/internal/processing/common"
	"github.com/superseriousbusiness/gotosocial/internal/processing/conversations"
	"github.com/superseriousbusiness/gotosocial/internal/processing/fedi"
	filtersv1 "github.com/superseriousbusiness/gotosocial/internal/processing/filters/v1"
	filtersv2 "github.com/superseriousbusiness/gotosocial/internal/processing/filters/v2"
	"github.com/superseriousbusiness/gotosocial/internal/processing/interactionrequests"
	"github.com/superseriousbusiness/gotosocial/internal/processing/list"
	"github.com/superseriousbusiness/gotosocial/internal/processing/markers"
	"github.com/superseriousbusiness/gotosocial/internal/processing/media"
	"github.com/superseriousbusiness/gotosocial/internal/processing/polls"
	"github.com/superseriousbusiness/gotosocial/internal/processing/report"
	"github.com/superseriousbusiness/gotosocial/internal/processing/search"
	"github.com/superseriousbusiness/gotosocial/internal/processing/status"
	"github.com/superseriousbusiness/gotosocial/internal/processing/stream"
	"github.com/superseriousbusiness/gotosocial/internal/processing/tags"
	"github.com/superseriousbusiness/gotosocial/internal/processing/timeline"
	"github.com/superseriousbusiness/gotosocial/internal/processing/user"
	"github.com/superseriousbusiness/gotosocial/internal/processing/workers"
	"github.com/superseriousbusiness/gotosocial/internal/state"
	"github.com/superseriousbusiness/gotosocial/internal/text"
	"github.com/superseriousbusiness/gotosocial/internal/typeutils"
)

// Processor groups together processing functions and
// sub processors for handling actions + events coming
// from either the client or federating APIs.
//
// Many of the functions available through this struct
// or sub processors will trigger asynchronous processing
// via the workers contained in state.
type Processor struct {
	converter   *typeutils.Converter
	oauthServer oauth.Server
	state       *state.State

	/*
		Required for instance description / terms updating.
	*/

	formatter        *text.Formatter
	parseMentionFunc gtsmodel.ParseMentionFunc

	/*
		SUB-PROCESSORS
	*/

	account             account.Processor
	admin               admin.Processor
	advancedmigrations  advancedmigrations.Processor
	conversations       conversations.Processor
	fedi                fedi.Processor
	filtersv1           filtersv1.Processor
	filtersv2           filtersv2.Processor
	interactionRequests interactionrequests.Processor
	list                list.Processor
	markers             markers.Processor
	media               media.Processor
	polls               polls.Processor
	report              report.Processor
	search              search.Processor
	status              status.Processor
	stream              stream.Processor
	tags                tags.Processor
	timeline            timeline.Processor
	user                user.Processor
	workers             workers.Processor
}

func (p *Processor) Account() *account.Processor {
	return &p.account
}

func (p *Processor) Admin() *admin.Processor {
	return &p.admin
}

func (p *Processor) AdvancedMigrations() *advancedmigrations.Processor {
	return &p.advancedmigrations
}

func (p *Processor) Conversations() *conversations.Processor {
	return &p.conversations
}

func (p *Processor) Fedi() *fedi.Processor {
	return &p.fedi
}

func (p *Processor) FiltersV1() *filtersv1.Processor {
	return &p.filtersv1
}

func (p *Processor) FiltersV2() *filtersv2.Processor {
	return &p.filtersv2
}

func (p *Processor) InteractionRequests() *interactionrequests.Processor {
	return &p.interactionRequests
}

func (p *Processor) List() *list.Processor {
	return &p.list
}

func (p *Processor) Markers() *markers.Processor {
	return &p.markers
}

func (p *Processor) Media() *media.Processor {
	return &p.media
}

func (p *Processor) Polls() *polls.Processor {
	return &p.polls
}

func (p *Processor) Report() *report.Processor {
	return &p.report
}

func (p *Processor) Search() *search.Processor {
	return &p.search
}

func (p *Processor) Status() *status.Processor {
	return &p.status
}

func (p *Processor) Stream() *stream.Processor {
	return &p.stream
}

func (p *Processor) Tags() *tags.Processor {
	return &p.tags
}

func (p *Processor) Timeline() *timeline.Processor {
	return &p.timeline
}

func (p *Processor) User() *user.Processor {
	return &p.user
}

func (p *Processor) Workers() *workers.Processor {
	return &p.workers
}

// NewProcessor returns a new Processor.
func NewProcessor(
	cleaner *cleaner.Cleaner,
	converter *typeutils.Converter,
	federator *federation.Federator,
	oauthServer oauth.Server,
	mediaManager *mm.Manager,
	state *state.State,
	emailSender email.Sender,
	visFilter *visibility.Filter,
	intFilter *interaction.Filter,
) *Processor {
	parseMentionFunc := GetParseMentionFunc(state, federator)
	processor := &Processor{
		converter:        converter,
		oauthServer:      oauthServer,
		state:            state,
		formatter:        text.NewFormatter(state.DB),
		parseMentionFunc: parseMentionFunc,
	}

	// Instantiate sub processors.
	//
	// Start with sub processors that will
	// be required by the workers processor.
	common := common.New(state, mediaManager, converter, federator, visFilter)
	processor.account = account.New(&common, state, converter, mediaManager, federator, visFilter, parseMentionFunc)
	processor.media = media.New(&common, state, converter, federator, mediaManager, federator.TransportController())
	processor.stream = stream.New(state, oauthServer)

	// Instantiate the rest of the sub
	// processors + pin them to this struct.
	processor.account = account.New(&common, state, converter, mediaManager, federator, visFilter, parseMentionFunc)
	processor.admin = admin.New(&common, state, cleaner, federator, converter, mediaManager, federator.TransportController(), emailSender)
	processor.conversations = conversations.New(state, converter, visFilter)
	processor.fedi = fedi.New(state, &common, converter, federator, visFilter)
	processor.filtersv1 = filtersv1.New(state, converter, &processor.stream)
	processor.filtersv2 = filtersv2.New(state, converter, &processor.stream)
	processor.interactionRequests = interactionrequests.New(&common, state, converter)
	processor.list = list.New(state, converter)
	processor.markers = markers.New(state, converter)
	processor.polls = polls.New(&common, state, converter)
	processor.report = report.New(state, converter)
	processor.tags = tags.New(state, converter)
	processor.timeline = timeline.New(state, converter, visFilter)
	processor.search = search.New(state, federator, converter, visFilter)
	processor.status = status.New(state, &common, &processor.polls, &processor.interactionRequests, federator, converter, visFilter, intFilter, parseMentionFunc)
	processor.user = user.New(state, converter, oauthServer, emailSender)

	// The advanced migrations processor sequences advanced migrations from all other processors.
	processor.advancedmigrations = advancedmigrations.New(&processor.conversations)

	// Workers processor handles asynchronous
	// worker jobs; instantiate it separately
	// and pass subset of sub processors it needs.
	processor.workers = workers.New(
		state,
		&common,
		federator,
		converter,
		visFilter,
		emailSender,
		&processor.account,
		&processor.media,
		&processor.stream,
		&processor.conversations,
	)

	return processor
}