package model

import (
	"fmt"
	"time"
)

// LineMessageLog -
type LineMessageLog struct {
	ID      string    `db:"id" cc:"id"`
	Group   string    `db:"group" cc:"group"`
	User    string    `db:"user" cc:"user"`
	Message string    `db:"message" cc:"message"`
	Ctime   time.Time `db:"ctime" cc:"ctime"`
	Mtime   time.Time `db:"mtime" cc:"mtime"`
}

// LineMessageLogWithUG -
type LineMessageLogWithUG struct {
	LineMessageLog
	GroupName string `db:"group_name" cc:"group_name"`
	UserName  string `db:"user_name" cc:"user_name"`
}

// AddLineMessageLog -
func AddLineMessageLog(g, u, msg string) (msglog *LineMessageLog, err error) {
	query := `insert into "public"."line_message_log" ("group", "user", "message") values ($1, $2, $3)`
	msglog = &LineMessageLog{}
	err = x.Get(msglog, query, g, u, msg)
	return
}

// GetLineMessageLogCount -
func GetLineMessageLogCount() (c int, err error) {
	err = x.Get(&c, `select count(*) as c from "public"."line_message_log"`)
	return
}

// GetLineMessageLogList -
func GetLineMessageLogList(g, u string, offset, limit int) (logs []*LineMessageLogWithUG, err error) {
	params := struct {
		Group string `db:"group"`
		User  string `db:"user"`
	}{}
	query := `select m.*, g.name as group_name, u.name as user_name from "public"."line_message_log" m
		left join "public"."line_user" u
		on u.id = m.user
		left join "public"."line_group" g
		on g.id = m.group
		`
	where := ""
	if len(g) > 0 {
		where = ` where g.id = :group`
		params.Group = g
	}
	if len(u) > 0 {
		if len(where) > 0 {
			where += ` and u.id = :user`
		} else {
			where += ` where u.id = :user`
		}
		params.User = u
	}
	order := `order by m.ctime desc`
	pager := fmt.Sprintf("offset %d limit %d", offset, limit)

	stmt, err := x.PrepareNamed(fmt.Sprintf("%s %s %s %s", query, where, order, pager))
	if err != nil {
		return nil, err
	}

	err = stmt.Select(&logs, params)
	return
}