// 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 cache

import (
	"codeberg.org/gruf/go-cache/v3/result"
	"codeberg.org/gruf/go-cache/v3/ttl"
	"github.com/superseriousbusiness/gotosocial/internal/cache/domain"
	"github.com/superseriousbusiness/gotosocial/internal/config"
	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)

type GTSCaches struct {
	account *result.Cache[*gtsmodel.Account]
	block   *result.Cache[*gtsmodel.Block]
	// TODO: maybe should be moved out of here since it's
	// not actually doing anything with gtsmodel.DomainBlock.
	domainBlock   *domain.BlockCache
	emoji         *result.Cache[*gtsmodel.Emoji]
	emojiCategory *result.Cache[*gtsmodel.EmojiCategory]
	follow        *result.Cache[*gtsmodel.Follow]
	followRequest *result.Cache[*gtsmodel.FollowRequest]
	media         *result.Cache[*gtsmodel.MediaAttachment]
	mention       *result.Cache[*gtsmodel.Mention]
	notification  *result.Cache[*gtsmodel.Notification]
	report        *result.Cache[*gtsmodel.Report]
	status        *result.Cache[*gtsmodel.Status]
	statusFave    *result.Cache[*gtsmodel.StatusFave]
	tombstone     *result.Cache[*gtsmodel.Tombstone]
	user          *result.Cache[*gtsmodel.User]
	// TODO: move out of GTS caches since not using database models.
	webfinger *ttl.Cache[string, string]
}

// Init will initialize all the gtsmodel caches in this collection.
// NOTE: the cache MUST NOT be in use anywhere, this is not thread-safe.
func (c *GTSCaches) Init() {
	c.initAccount()
	c.initBlock()
	c.initDomainBlock()
	c.initEmoji()
	c.initEmojiCategory()
	c.initFollow()
	c.initFollowRequest()
	c.initMedia()
	c.initMention()
	c.initNotification()
	c.initReport()
	c.initStatus()
	c.initStatusFave()
	c.initTombstone()
	c.initUser()
	c.initWebfinger()
}

// Start will attempt to start all of the gtsmodel caches, or panic.
func (c *GTSCaches) Start() {
	tryStart(c.account, config.GetCacheGTSAccountSweepFreq())
	tryStart(c.block, config.GetCacheGTSBlockSweepFreq())
	tryUntil("starting domain block cache", 5, func() bool {
		if sweep := config.GetCacheGTSDomainBlockSweepFreq(); sweep > 0 {
			return c.domainBlock.Start(sweep)
		}
		return true
	})
	tryStart(c.emoji, config.GetCacheGTSEmojiSweepFreq())
	tryStart(c.emojiCategory, config.GetCacheGTSEmojiCategorySweepFreq())
	tryStart(c.follow, config.GetCacheGTSFollowSweepFreq())
	tryStart(c.followRequest, config.GetCacheGTSFollowRequestSweepFreq())
	tryStart(c.media, config.GetCacheGTSMediaSweepFreq())
	tryStart(c.mention, config.GetCacheGTSMentionSweepFreq())
	tryStart(c.notification, config.GetCacheGTSNotificationSweepFreq())
	tryStart(c.report, config.GetCacheGTSReportSweepFreq())
	tryStart(c.status, config.GetCacheGTSStatusSweepFreq())
	tryStart(c.statusFave, config.GetCacheGTSStatusFaveSweepFreq())
	tryStart(c.tombstone, config.GetCacheGTSTombstoneSweepFreq())
	tryStart(c.user, config.GetCacheGTSUserSweepFreq())
	tryUntil("starting *gtsmodel.Webfinger cache", 5, func() bool {
		if sweep := config.GetCacheGTSWebfingerSweepFreq(); sweep > 0 {
			return c.webfinger.Start(sweep)
		}
		return true
	})
}

// Stop will attempt to stop all of the gtsmodel caches, or panic.
func (c *GTSCaches) Stop() {
	tryStop(c.account, config.GetCacheGTSAccountSweepFreq())
	tryStop(c.block, config.GetCacheGTSBlockSweepFreq())
	tryUntil("stopping domain block cache", 5, c.domainBlock.Stop)
	tryStop(c.emoji, config.GetCacheGTSEmojiSweepFreq())
	tryStop(c.emojiCategory, config.GetCacheGTSEmojiCategorySweepFreq())
	tryStop(c.follow, config.GetCacheGTSFollowSweepFreq())
	tryStop(c.followRequest, config.GetCacheGTSFollowRequestSweepFreq())
	tryStop(c.media, config.GetCacheGTSMediaSweepFreq())
	tryStop(c.mention, config.GetCacheGTSNotificationSweepFreq())
	tryStop(c.notification, config.GetCacheGTSNotificationSweepFreq())
	tryStop(c.report, config.GetCacheGTSReportSweepFreq())
	tryStop(c.status, config.GetCacheGTSStatusSweepFreq())
	tryStop(c.statusFave, config.GetCacheGTSStatusFaveSweepFreq())
	tryStop(c.tombstone, config.GetCacheGTSTombstoneSweepFreq())
	tryStop(c.user, config.GetCacheGTSUserSweepFreq())
	tryUntil("stopping *gtsmodel.Webfinger cache", 5, c.webfinger.Stop)
}

// Account provides access to the gtsmodel Account database cache.
func (c *GTSCaches) Account() *result.Cache[*gtsmodel.Account] {
	return c.account
}

// Block provides access to the gtsmodel Block (account) database cache.
func (c *GTSCaches) Block() *result.Cache[*gtsmodel.Block] {
	return c.block
}

// DomainBlock provides access to the domain block database cache.
func (c *GTSCaches) DomainBlock() *domain.BlockCache {
	return c.domainBlock
}

// Emoji provides access to the gtsmodel Emoji database cache.
func (c *GTSCaches) Emoji() *result.Cache[*gtsmodel.Emoji] {
	return c.emoji
}

// EmojiCategory provides access to the gtsmodel EmojiCategory database cache.
func (c *GTSCaches) EmojiCategory() *result.Cache[*gtsmodel.EmojiCategory] {
	return c.emojiCategory
}

// Follow provides access to the gtsmodel Follow database cache.
func (c *GTSCaches) Follow() *result.Cache[*gtsmodel.Follow] {
	return c.follow
}

// FollowRequest provides access to the gtsmodel FollowRequest database cache.
func (c *GTSCaches) FollowRequest() *result.Cache[*gtsmodel.FollowRequest] {
	return c.followRequest
}

// Media provides access to the gtsmodel Media database cache.
func (c *GTSCaches) Media() *result.Cache[*gtsmodel.MediaAttachment] {
	return c.media
}

// Mention provides access to the gtsmodel Mention database cache.
func (c *GTSCaches) Mention() *result.Cache[*gtsmodel.Mention] {
	return c.mention
}

// Notification provides access to the gtsmodel Notification database cache.
func (c *GTSCaches) Notification() *result.Cache[*gtsmodel.Notification] {
	return c.notification
}

// Report provides access to the gtsmodel Report database cache.
func (c *GTSCaches) Report() *result.Cache[*gtsmodel.Report] {
	return c.report
}

// Status provides access to the gtsmodel Status database cache.
func (c *GTSCaches) Status() *result.Cache[*gtsmodel.Status] {
	return c.status
}

// StatusFave provides access to the gtsmodel StatusFave database cache.
func (c *GTSCaches) StatusFave() *result.Cache[*gtsmodel.StatusFave] {
	return c.statusFave
}

// Tombstone provides access to the gtsmodel Tombstone database cache.
func (c *GTSCaches) Tombstone() *result.Cache[*gtsmodel.Tombstone] {
	return c.tombstone
}

// User provides access to the gtsmodel User database cache.
func (c *GTSCaches) User() *result.Cache[*gtsmodel.User] {
	return c.user
}

// Webfinger provides access to the webfinger URL cache.
func (c *GTSCaches) Webfinger() *ttl.Cache[string, string] {
	return c.webfinger
}

func (c *GTSCaches) initAccount() {
	c.account = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "URI"},
		{Name: "URL"},
		{Name: "Username.Domain"},
		{Name: "PublicKeyURI"},
		{Name: "InboxURI"},
		{Name: "OutboxURI"},
		{Name: "FollowersURI"},
		{Name: "FollowingURI"},
	}, func(a1 *gtsmodel.Account) *gtsmodel.Account {
		a2 := new(gtsmodel.Account)
		*a2 = *a1
		return a2
	}, config.GetCacheGTSAccountMaxSize())
	c.account.SetTTL(config.GetCacheGTSAccountTTL(), true)
	c.account.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initBlock() {
	c.block = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "URI"},
		{Name: "AccountID.TargetAccountID"},
	}, func(b1 *gtsmodel.Block) *gtsmodel.Block {
		b2 := new(gtsmodel.Block)
		*b2 = *b1
		return b2
	}, config.GetCacheGTSBlockMaxSize())
	c.block.SetTTL(config.GetCacheGTSBlockTTL(), true)
	c.block.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initDomainBlock() {
	c.domainBlock = domain.New(
		config.GetCacheGTSDomainBlockMaxSize(),
		config.GetCacheGTSDomainBlockTTL(),
	)
}

func (c *GTSCaches) initEmoji() {
	c.emoji = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "URI"},
		{Name: "Shortcode.Domain"},
		{Name: "ImageStaticURL"},
	}, func(e1 *gtsmodel.Emoji) *gtsmodel.Emoji {
		e2 := new(gtsmodel.Emoji)
		*e2 = *e1
		return e2
	}, config.GetCacheGTSEmojiMaxSize())
	c.emoji.SetTTL(config.GetCacheGTSEmojiTTL(), true)
	c.emoji.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initEmojiCategory() {
	c.emojiCategory = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "Name"},
	}, func(c1 *gtsmodel.EmojiCategory) *gtsmodel.EmojiCategory {
		c2 := new(gtsmodel.EmojiCategory)
		*c2 = *c1
		return c2
	}, config.GetCacheGTSEmojiCategoryMaxSize())
	c.emojiCategory.SetTTL(config.GetCacheGTSEmojiCategoryTTL(), true)
	c.emojiCategory.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initFollow() {
	c.follow = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "URI"},
		{Name: "AccountID.TargetAccountID"},
	}, func(f1 *gtsmodel.Follow) *gtsmodel.Follow {
		f2 := new(gtsmodel.Follow)
		*f2 = *f1
		return f2
	}, config.GetCacheGTSFollowMaxSize())
	c.follow.SetTTL(config.GetCacheGTSFollowTTL(), true)
}

func (c *GTSCaches) initFollowRequest() {
	c.followRequest = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "URI"},
		{Name: "AccountID.TargetAccountID"},
	}, func(f1 *gtsmodel.FollowRequest) *gtsmodel.FollowRequest {
		f2 := new(gtsmodel.FollowRequest)
		*f2 = *f1
		return f2
	}, config.GetCacheGTSFollowRequestMaxSize())
	c.followRequest.SetTTL(config.GetCacheGTSFollowRequestTTL(), true)
}

func (c *GTSCaches) initMedia() {
	c.media = result.New([]result.Lookup{
		{Name: "ID"},
	}, func(m1 *gtsmodel.MediaAttachment) *gtsmodel.MediaAttachment {
		m2 := new(gtsmodel.MediaAttachment)
		*m2 = *m1
		return m2
	}, config.GetCacheGTSMediaMaxSize())
	c.media.SetTTL(config.GetCacheGTSMediaTTL(), true)
	c.media.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initMention() {
	c.mention = result.New([]result.Lookup{
		{Name: "ID"},
	}, func(m1 *gtsmodel.Mention) *gtsmodel.Mention {
		m2 := new(gtsmodel.Mention)
		*m2 = *m1
		return m2
	}, config.GetCacheGTSMentionMaxSize())
	c.mention.SetTTL(config.GetCacheGTSMentionTTL(), true)
	c.mention.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initNotification() {
	c.notification = result.New([]result.Lookup{
		{Name: "ID"},
	}, func(n1 *gtsmodel.Notification) *gtsmodel.Notification {
		n2 := new(gtsmodel.Notification)
		*n2 = *n1
		return n2
	}, config.GetCacheGTSNotificationMaxSize())
	c.notification.SetTTL(config.GetCacheGTSNotificationTTL(), true)
	c.notification.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initReport() {
	c.report = result.New([]result.Lookup{
		{Name: "ID"},
	}, func(r1 *gtsmodel.Report) *gtsmodel.Report {
		r2 := new(gtsmodel.Report)
		*r2 = *r1
		return r2
	}, config.GetCacheGTSReportMaxSize())
	c.report.SetTTL(config.GetCacheGTSReportTTL(), true)
	c.report.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initStatus() {
	c.status = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "URI"},
		{Name: "URL"},
	}, func(s1 *gtsmodel.Status) *gtsmodel.Status {
		s2 := new(gtsmodel.Status)
		*s2 = *s1
		return s2
	}, config.GetCacheGTSStatusMaxSize())
	c.status.SetTTL(config.GetCacheGTSStatusTTL(), true)
	c.status.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initStatusFave() {
	c.statusFave = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "AccountID.StatusID"},
	}, func(f1 *gtsmodel.StatusFave) *gtsmodel.StatusFave {
		f2 := new(gtsmodel.StatusFave)
		*f2 = *f1
		return f2
	}, config.GetCacheGTSStatusFaveMaxSize())
	c.status.SetTTL(config.GetCacheGTSStatusFaveTTL(), true)
	c.status.IgnoreErrors(ignoreErrors)
}

// initTombstone will initialize the gtsmodel.Tombstone cache.
func (c *GTSCaches) initTombstone() {
	c.tombstone = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "URI"},
	}, func(t1 *gtsmodel.Tombstone) *gtsmodel.Tombstone {
		t2 := new(gtsmodel.Tombstone)
		*t2 = *t1
		return t2
	}, config.GetCacheGTSTombstoneMaxSize())
	c.tombstone.SetTTL(config.GetCacheGTSTombstoneTTL(), true)
	c.tombstone.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initUser() {
	c.user = result.New([]result.Lookup{
		{Name: "ID"},
		{Name: "AccountID"},
		{Name: "Email"},
		{Name: "ConfirmationToken"},
		{Name: "ExternalID"},
	}, func(u1 *gtsmodel.User) *gtsmodel.User {
		u2 := new(gtsmodel.User)
		*u2 = *u1
		return u2
	}, config.GetCacheGTSUserMaxSize())
	c.user.SetTTL(config.GetCacheGTSUserTTL(), true)
	c.user.IgnoreErrors(ignoreErrors)
}

func (c *GTSCaches) initWebfinger() {
	c.webfinger = ttl.New[string, string](
		0,
		config.GetCacheGTSWebfingerMaxSize(),
		config.GetCacheGTSWebfingerTTL())
}