package discord

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

// DiscordServerModel -
type DiscordServerModel struct {
	ID         string    `db:"id"`
	Name       string    `db:"name"`
	Permission int       `db:"permission"`
	Ctime      time.Time `db:"ctime"`
	Mtime      time.Time `db:"mtime"`
}

// DiscordChannelModel -
type DiscordChannelModel 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"`
}

// NewDiscordServer -
func NewDiscordServer(id, name string, permission int) (ds *DiscordServerModel, err error) {
	if len(id) == 0 || len(name) == 0 {
		return nil, errors.New("id or name empty")
	}
	ds = &DiscordServerModel{
		ID:         id,
		Name:       name,
		Permission: permission,
	}
	return
}

// GetDiscordServerByID -
func GetDiscordServerByID(id string) (ds *DiscordServerModel, err error) {
	if len(id) == 0 {
		return nil, errors.New("id is empty")
	}
	db := models.GetConn()
	ds = &DiscordServerModel{}
	query := `select "id", "name", "permission", "ctime", "mtime" from discord_server where "id" = $1`
	err = db.Get(ds, query, id)
	return
}

// Write DiscordServer data to database
func (p *DiscordServerModel) Write() error {
	db := models.GetConn()
	query := `insert into discord_server ("id", "name", "permission") values (:id, :name, :permission) returning *`
	row, err := db.NamedQuery(query, p)
	if err != nil {
		return err
	}
	err = row.StructScan(p)
	if err != nil {
		return err
	}
	return nil
}

// ChangeName - change discord server name
func (p *DiscordServerModel) ChangeName(name string) (err error) {
	if len(name) == 0 {
		return errors.New("name is empty")
	}
	db := models.GetConn()
	query := `update discord_server set "name" = $1, "mtime" = now() where "id" = $2`
	_, err = db.Exec(query, name, p.ID)
	if err != nil {
		return err
	}
	p.Name = name
	return
}

// GetChannelList -
func (p *DiscordServerModel) GetChannelList() (list []*DiscordChannelModel, err error) {
	db := models.GetConn()
	query := `select "id", "server", "enable_cmd", "enable_notify", "ctime", "mtime" from discord_channel where "server" = $1`
	err = db.Select(&list, query, p.ID)
	if err != nil {
		return nil, err
	}
	return
}

// GetChannel -
func (p *DiscordServerModel) GetChannel(id string) (ch *DiscordChannelModel, err error) {
	if len(id) == 0 {
		return nil, errors.New("id is empty")
	}
	// TODO: not finish
	return
}

// AddChannel -
func (p *DiscordServerModel) AddChannel(id string, enableCMD, enableNotify bool) (err error) {
	db := models.GetConn()
	query := `insert into discord_channel ("id", "server", "enable_cmd", "enable_notify", "ctime", "mtime") values 
		($1, $2, $3, $4, now(), now())`
	_, err = db.Exec(query, id, p.ID, enableCMD, enableNotify)
	if err != nil {
		return err
	}
	return
}