package discord

import (
	"dorisbot/models"
	pubmodel "dorisbot/models/public"
	"errors"
	"time"
)

var nerr = errors.New

// ChannelModel -
type ChannelModel struct {
	ID           string    `db:"id"`
	Server       string    `db:"server"`
	EnableCMD    bool      `db:"enable_cmd"`
	EnableNotify bool      `db:"enable_notify"`
	Ctime        time.Time `db:"ctime"`
	Mtime        time.Time `db:"mtime"`
}

// NewChannel -
func NewChannel(id, server string, enableCMD, enableNotify bool) (ch *ChannelModel, err error) {
	if len(id) == 0 || len(server) == 0 {
		return nil, errors.New("id or server is empty")
	}
	ch = &ChannelModel{
		ID:           id,
		Server:       server,
		EnableCMD:    enableCMD,
		EnableNotify: enableNotify,
	}
	return
}

// GetChannelByID -
func GetChannelByID(id string) (ch *ChannelModel, err error) {
	if len(id) == 0 {
		return nil, errors.New("id is empty")
	}
	ch = &ChannelModel{}
	db := models.GetConn()
	query := `select id, server, enable_cmd, enable_notify, ctime, mtime from "discord"."channel" where id = $1`
	err = db.Get(ch, query, id)
	if err != nil {
		return nil, err
	}
	return
}

// GetChannelListByServer -
func GetChannelListByServer(server string) (list []*ChannelModel, err error) {
	if len(server) == 0 {
		return nil, errors.New("server is empty")
	}
	db := models.GetConn()
	query := `select id, server, enable_cmd, enable_notify, ctime, mtime from "discord"."channel" where server = $1`
	err = db.Select(&list, query, server)
	if err != nil {
		return nil, err
	}
	return
}

// Write -
func (p *ChannelModel) Write() (err error) {
	db := models.GetConn()
	query := `insert into "discord"."channel" (id, server, enable_cmd, enable_notify) values
		(:id, :server, :enable_cmd, :enable_notify) returning *`
	rows, err := db.NamedQuery(query, p)
	if err != nil {
		return err
	}
	defer rows.Close()

	if rows.Next() {
		err = rows.StructScan(p)
		if err != nil {
			return err
		}
	}
	return
}

// SetCMDState -
func (p *ChannelModel) SetCMDState(state bool) (err error) {
	if state == p.EnableCMD {
		return nil
	}
	db := models.GetConn()
	query := `update "discord"."channel" set enable_cmd = $1, mtime = now() where id = $2`
	_, err = db.Exec(query, state, p.ID)
	if err != nil {
		return err
	}
	p.EnableCMD = state
	return
}

// SetNotifyState -
func (p *ChannelModel) SetNotifyState(state bool) (err error) {
	if state == p.EnableNotify {
		return nil
	}
	db := models.GetConn()
	query := `update "discord"."channel" set enable_notify = $1, mtime = now() where id = $2`
	_, err = db.Exec(query, state, p.ID)
	if err != nil {
		return err
	}
	p.EnableNotify = state
	return
}

// GetFacebookPageList -
func (p *ChannelModel) GetFacebookPageList() (pages []*pubmodel.FacebookPageModel, err error) {
	return pubmodel.GetFacebookPageListByChannel(p.ID)
}

// GetFacebookPageByID -
func (p *ChannelModel) GetFacebookPageByID(id string) (page *pubmodel.FacebookPageModel, err error) {
	return pubmodel.GetFacebookPageByChannelAndID(id, p.ID)
}

// GetFacebookPageTmpl -
func (p *ChannelModel) GetFacebookPageTmpl(fbid string) (tmpl string, err error) {
	if len(fbid) == 0 {
		return "", errors.New("id is empty")
	}
	rt, err := GetFacebookRT(p.ID, fbid)
	if err != nil {
		return "", err
	}
	if rt == nil {
		return "", errors.New("rt not found")
	}
	tmpl = rt.Tmpl
	rt = nil
	return tmpl, nil
}

// DeleteFacebookPage -
func (p *ChannelModel) DeleteFacebookPage(fbid string) (err error) {
	return DeleteFacebookRT(p.ID, fbid)
}

// GetInstagramByID -
func (p *ChannelModel) GetInstagramByID(id string) (ig *pubmodel.InstagramModel, err error) {
	return pubmodel.GetInstagramByChannelAndID(id, p.ID)
}

// GetInstagramTmpl -
func (p *ChannelModel) GetInstagramTmpl(id string) (tmpl string, err error) {
	if len(id) == 0 {
		return "", nerr("id is empty")
	}
	rt, err := GetInstagramRT(p.ID, id)
	if err != nil {
		return "", err
	}
	if rt == nil {
		return "", nerr("rt not found")
	}
	tmpl = rt.Tmpl
	rt = nil
	return tmpl, nil
}

// DeleteInstagram -
func (p *ChannelModel) DeleteInstagram(id string) (err error) {
	return DeleteInstagramRT(p.ID, id)
}