package public

import (
	"database/sql"
	dsmodel "dorisbot/database/models/discord"
	pubmodel "dorisbot/database/models/public"
	"errors"
)

// FacebookImpl -
type FacebookImpl struct{}

// Create new Facebook Page
func (p FacebookImpl) Create(fb *pubmodel.FacebookPage) (err error) {
	query := `
		insert into "public"."facebook_page" ("id") values ($1) returnint *
	`

	err = x.Get(fb, query, fb.ID)
	if err != nil {
		return err
	}
	return nil
}

// UpdatePost -
func (p FacebookImpl) UpdatePost(fb *pubmodel.FacebookPage, postID string) (err error) {
	query := `
		update "public"."facebook_page" set
			"last_post" = $1,
			"mtime" = now()
		where
			"id" = $2
	`

	err = x.Get(fb, query, postID, fb.ID)
	if err != nil {
		return err
	}
	return
}

// GetByID -
func (p FacebookImpl) GetByID(id string) (fb pubmodel.FacebookPage, exists bool, err error) {
	exists = true
	fb = pubmodel.FacebookPage{}
	query := `
		select "id", "last_post", "ctime", "mtime"
		from "public"."facebook_page"
		where
			"id" = $1
		limit 1
	`

	err = x.Get(&fb, query, id)
	if err != nil {
		if errors.Is(err, sql.ErrNoRows) {
			exists = false
			err = nil
		}
		return fb, exists, err
	}
	return
}

// GetAll -
func (p FacebookImpl) GetAll() (list []pubmodel.FacebookPage, err error) {
	query := `
		select "id", "last_post", "ctime", "mtime"
		from "public"."facebook_page"
		order by "ctime" asc
	`
	err = x.Select(&list, query)
	if err != nil {
		return nil, err
	}
	return
}

// Delete -
func (p FacebookImpl) Delete(id string) (err error) {
	query := `
		delete from "public"."facebook_page"
		where "id" = $1
	`

	_, err = x.Exec(query, id)
	if err != nil {
		return err
	}
	return
}

// GetChannels -
func (p FacebookImpl) GetChannels(id string) (list []dsmodel.Channel, err error) {
	query := `
		select
			ch."id", ch."server", ch."enable_cmd", ch."enable_notify", ch."ctime", ch."mtime"
		from "discord"."channel" ch
		left join "discord"."channel_facebook_rt" rt
			on rt.channel = ch.id
		left join "public"."facebook_page" fb
			on fb.id = rt.facebook
		where
			fb.id = $1
	`
	err = x.Select(&list, query, id)
	if err != nil {
		return nil, err
	}
	return
}