package public

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

	sq "github.com/elgris/sqrl"
)

// InstagramImpl -
type InstagramImpl struct{}

// Create -
func (i InstagramImpl) Create(ig *pubmodel.Instagram) (err error) {
	query, args, err := sq.Insert(`"public"."instagram"`).Columns("id").Values(ig.ID).Suffix("returning *").ToSql()
	if err != nil {
		return err
	}
	query = x.Rebind(query)

	err = x.Get(ig, query, args...)
	if err != nil {
		return err
	}

	return
}

// UpdatePost -
func (i InstagramImpl) UpdatePost(ig *pubmodel.Instagram, postID string) (err error) {
	query, args, err := sq.Update(`"public"."instagram"`).Set("last_post", postID).Set("mtime", sq.Expr("now()")).Where(sq.Eq{"id": ig.ID}).ToSql()
	if err != nil {
		return err
	}
	query = x.Rebind(query)

	err = x.Get(ig, query, args...)
	if err != nil {
		return err
	}
	return
}

// GetByID -
func (i *InstagramImpl) GetByID(id string) (pubmodel.Instagram, bool, error) {
	ig := pubmodel.Instagram{}
	query, args, err := sq.Select("id", "last_post", "ctime", "mtime").From(`"public"."instagram"`).Where(sq.Eq{"id": id}).ToSql()
	if err != nil {
		return ig, false, err
	}
	query = x.Rebind(query)

	err = x.Get(&ig, query, args...)
	if err != nil {
		exists := true
		if errors.Is(err, sql.ErrNoRows) {
			exists = false
			err = nil
		}
		return ig, exists, err
	}

	return ig, true, nil
}

// GetAll -
func (i *InstagramImpl) GetAll() ([]pubmodel.Instagram, error) {
	query, args, err := sq.Select("id", "last_post", "ctime", "mtime").From(`"public"."instagram"`).OrderBy("ctime").ToSql()
	if err != nil {
		return nil, err
	}
	query = x.Rebind(query)

	list := make([]pubmodel.Instagram, 0)
	err = x.Select(&list, query, args...)
	if err != nil {
		return nil, err
	}

	return list, nil
}

// Delete -
func (i *InstagramImpl) Delete(id string) error {
	query, args, err := sq.Delete(`"public"."instagram"`).Where(sq.Eq{"id": id}).ToSql()
	if err != nil {
		return err
	}
	query = x.Rebind(query)

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

	return nil
}

// GetChannels -
func (i *InstagramImpl) GetChannels(id string) ([]dsmodel.Channel, error) {
	query, args, err := sq.Select("ch.id", "ch.server", "ch.enable_cmd", "ch.enable_notify", "ch.ctime", "ch.mtime").
		From(`"discord"."channel" ch`).
		LeftJoin(`"discord"."channel_instagram_rt" rt on rt.channel = ch.id`).
		LeftJoin(`"public"."instagram" ig on ig.id = rt.instagram`).
		Where(sq.Eq{"ig.id": id}).OrderBy("ch.ctime").ToSql()
	if err != nil {
		return nil, err
	}
	query = x.Rebind(query)

	list := make([]dsmodel.Channel, 0)
	err = x.Select(&list, query, args...)
	if err != nil {
		return nil, err
	}
	return list, nil
}