maubot/database/commands.go

136 lines
3.6 KiB
Go

// maubot - A plugin-based Matrix bot system written in Go.
// Copyright (C) 2018 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package database
import (
"database/sql"
"encoding/json"
"maubot.xyz"
log "maunium.net/go/maulogger"
)
type CommandSpec struct {
db *Database
sql *sql.DB
*maubot.CommandSpec
Owner string `json:"owner"`
Client string `json:"client"`
}
type CommandSpecStatic struct {
db *Database
sql *sql.DB
}
func (css *CommandSpecStatic) CreateTable() error {
_, err := css.sql.Exec(`CREATE TABLE IF NOT EXISTS command_spec (
owner VARCHAR(255),
client VARCHAR(255),
spec TEXT,
PRIMARY KEY (owner, client),
FOREIGN KEY (owner) REFERENCES plugin(id)
ON DELETE CASCADE ON UPDATE CASCADE,
FOREIGN KEY (client) REFERENCES matrix_client(user_id)
ON DELETE CASCADE ON UPDATE CASCADE
)`)
return err
}
func (css *CommandSpecStatic) Get(owner, client string) *CommandSpec {
rows, err := css.sql.Query("SELECT * FROM command_spec WHERE owner=? AND client=?", owner, client)
if err != nil {
log.Errorf("Failed to Get(%s, %s): %v\n", owner, client, err)
}
return css.New().Scan(rows)
}
func (css *CommandSpecStatic) GetOrCreate(owner, client string) (spec *CommandSpec) {
spec = css.Get(owner, client)
if spec == nil {
spec = css.New()
spec.Owner = owner
spec.Client = client
spec.Insert()
}
return
}
func (css *CommandSpecStatic) getAllByQuery(query string, args ...interface{}) (specs []*CommandSpec) {
rows, err := css.sql.Query(query, args...)
if err != nil {
log.Errorf("Failed to getAllByQuery(%s): %v\n", query, err)
return nil
}
defer rows.Close()
for rows.Next() {
specs = append(specs, css.New().Scan(rows))
}
return
}
func (css *CommandSpecStatic) GetAllByOwner(owner string) []*CommandSpec {
return css.getAllByQuery("SELECT * FROM command_spec WHERE owner=?", owner)
}
func (css *CommandSpecStatic) GetAllByClient(client string) []*CommandSpec {
return css.getAllByQuery("SELECT * FROM command_spec WHERE client=?", client)
}
func (css *CommandSpecStatic) New() *CommandSpec {
return &CommandSpec{
db: css.db,
sql: css.sql,
}
}
func (cs *CommandSpec) Scan(row Scannable) *CommandSpec {
var spec string
err := row.Scan(&cs.Owner, &cs.Client, &spec)
if err != nil {
log.Errorln("CommandSpec scan failed:", err)
return cs
}
cs.CommandSpec = &maubot.CommandSpec{}
err = json.Unmarshal([]byte(spec), cs.CommandSpec)
if err != nil {
log.Errorln("CommandSpec parse failed:", err)
}
return cs
}
func (cs *CommandSpec) Insert() error {
data, err := json.Marshal(cs.CommandSpec)
if err != nil {
return err
}
_, err = cs.sql.Exec("INSERT INTO command_spec (owner, client, spec) VALUES (?, ?, ?)",
cs.Owner, cs.Client, string(data))
return err
}
func (cs *CommandSpec) Update() error {
data, err := json.Marshal(cs.CommandSpec)
if err != nil {
return err
}
_, err = cs.sql.Exec("UPDATE command_spec SET spec=? WHERE owner=? AND client=?",
string(data), cs.Owner, cs.Client)
return err
}