// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
// Copyright (C) 2018 Tulir Asokan
//
// 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 <https://www.gnu.org/licenses/>.

package main

import (
	"maunium.net/go/mautrix-whatsapp/database"
	log "maunium.net/go/maulogger"
	"fmt"
	"maunium.net/go/mautrix-whatsapp/types"
)

func (user *User) GetPortalByMXID(mxid types.MatrixRoomID) *Portal {
	portal, ok := user.portalsByMXID[mxid]
	if !ok {
		dbPortal := user.bridge.DB.Portal.GetByMXID(mxid)
		if dbPortal == nil || dbPortal.Owner != user.UserID {
			return nil
		}
		portal = user.NewPortal(dbPortal)
		user.portalsByJID[portal.JID] = portal
		if len(portal.MXID) > 0 {
			user.portalsByMXID[portal.MXID] = portal
		}
	}
	return portal
}

func (user *User) GetPortalByJID(jid types.WhatsAppID) *Portal {
	portal, ok := user.portalsByJID[jid]
	if !ok {
		dbPortal := user.bridge.DB.Portal.GetByJID(user.UserID, jid)
		if dbPortal == nil {
			return nil
		}
		portal = user.NewPortal(dbPortal)
		user.portalsByJID[portal.JID] = portal
		if len(portal.MXID) > 0 {
			user.portalsByMXID[portal.MXID] = portal
		}
	}
	return portal
}

func (user *User) GetAllPortals() []*Portal {
	dbPortals := user.bridge.DB.Portal.GetAll(user.UserID)
	output := make([]*Portal, len(dbPortals))
	for index, dbPortal := range dbPortals {
		portal, ok := user.portalsByJID[dbPortal.JID]
		if !ok {
			portal = user.NewPortal(dbPortal)
			user.portalsByJID[dbPortal.JID] = portal
			if len(dbPortal.MXID) > 0 {
				user.portalsByMXID[dbPortal.MXID] = portal
			}
		}
		output[index] = portal
	}
	return output
}

func (user *User) NewPortal(dbPortal *database.Portal) *Portal {
	return &Portal{
		Portal: dbPortal,
		user:   user,
		bridge: user.bridge,
		log:    user.log.Sub(fmt.Sprintf("Portal/%s", dbPortal.JID)),
	}
}

type Portal struct {
	*database.Portal

	user   *User
	bridge *Bridge
	log    log.Logger
}