package datastore

import (
	"github.com/drone/drone/model"
	"github.com/drone/drone/store/datastore/sql"
	"github.com/russross/meddler"
)

func (db *datastore) GetUser(id int64) (*model.User, error) {
	var usr = new(model.User)
	var err = meddler.Load(db, userTable, usr, id)
	return usr, err
}

func (db *datastore) GetUserLogin(login string) (*model.User, error) {
	var usr = new(model.User)
	var err = meddler.QueryRow(db, usr, rebind(userLoginQuery), login)
	return usr, err
}

func (db *datastore) GetUserList() ([]*model.User, error) {
	var users = []*model.User{}
	var err = meddler.QueryAll(db, &users, rebind(userListQuery))
	return users, err
}

func (db *datastore) GetUserCount() (count int, err error) {
	err = db.QueryRow(
		sql.Lookup(db.driver, "count-users"),
	).Scan(&count)
	return
}

func (db *datastore) CreateUser(user *model.User) error {
	return meddler.Insert(db, userTable, user)
}

func (db *datastore) UpdateUser(user *model.User) error {
	return meddler.Update(db, userTable, user)
}

func (db *datastore) DeleteUser(user *model.User) error {
	var _, err = db.Exec(rebind(userDeleteStmt), user.ID)
	return err
}

func (db *datastore) UserFeed(user *model.User) ([]*model.Feed, error) {
	stmt := sql.Lookup(db.driver, "feed")
	data := []*model.Feed{}
	err := meddler.QueryAll(db, &data, stmt, user.ID)
	return data, err
}

const userTable = "users"

const userLoginQuery = `
SELECT *
FROM users
WHERE user_login=?
LIMIT 1
`

const userListQuery = `
SELECT *
FROM users
ORDER BY user_login ASC
`

const userDeleteStmt = `
DELETE FROM users
WHERE user_id=?
`