gomuks/matrix/pushrules/action.go
2018-03-23 01:20:26 +02:00

136 lines
4.1 KiB
Go

// gomuks - A terminal Matrix client 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 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package pushrules
import "encoding/json"
// PushActionType is the type of a PushAction
type PushActionType string
// The allowed push action types as specified in spec section 11.12.1.4.1.
const (
ActionNotify PushActionType = "notify"
ActionDontNotify PushActionType = "dont_notify"
ActionCoalesce PushActionType = "coalesce"
ActionSetTweak PushActionType = "set_tweak"
)
// PushActionTweak is the type of the tweak in SetTweak push actions.
type PushActionTweak string
// The allowed tweak types as specified in spec section 11.12.1.4.1.1.
const (
TweakSound PushActionTweak = "sound"
TweakHighlight PushActionTweak = "highlight"
)
// PushActionArray is an array of PushActions.
type PushActionArray []*PushAction
// PushActionArrayShould contains the important information parsed from a PushActionArray.
type PushActionArrayShould struct {
// Whether or not the array contained a Notify, DontNotify or Coalesce action type.
NotifySpecified bool
// Whether or not the event in question should trigger a notification.
Notify bool
// Whether or not the event in question should be highlighted.
Highlight bool
// Whether or not the event in question should trigger a sound alert.
PlaySound bool
// The name of the sound to play if PlaySound is true.
SoundName string
}
// Should parses this push action array and returns the relevant details wrapped in a PushActionArrayShould struct.
func (actions PushActionArray) Should() (should PushActionArrayShould) {
for _, action := range actions {
switch action.Action {
case ActionNotify, ActionCoalesce:
should.Notify = true
should.NotifySpecified = true
case ActionDontNotify:
should.Notify = false
should.NotifySpecified = true
case ActionSetTweak:
switch action.Tweak {
case TweakHighlight:
var ok bool
should.Highlight, ok = action.Value.(bool)
if !ok {
// Highlight value not specified, so assume true since the tweak is set.
should.Highlight = true
}
case TweakSound:
should.SoundName = action.Value.(string)
should.PlaySound = len(should.SoundName) > 0
}
}
}
return
}
// PushAction is a single action that should be triggered when receiving a message.
type PushAction struct {
Action PushActionType
Tweak PushActionTweak
Value interface{}
}
// UnmarshalJSON parses JSON into this PushAction.
//
// * If the JSON is a single string, the value is stored in the Action field.
// * If the JSON is an object with the set_tweak field, Action will be set to
// "set_tweak", Tweak will be set to the value of the set_tweak field and
// and Value will be set to the value of the value field.
// * In any other case, the function does nothing.
func (action *PushAction) UnmarshalJSON(raw []byte) error {
var data interface{}
err := json.Unmarshal(raw, &data)
if err != nil {
return err
}
switch val := data.(type) {
case string:
action.Action = PushActionType(val)
case map[string]interface{}:
tweak, ok := val["set_tweak"].(string)
if ok {
action.Action = ActionSetTweak
action.Tweak = PushActionTweak(tweak)
action.Value, _ = val["value"]
}
}
return nil
}
// MarshalJSON is the reverse of UnmarshalJSON()
func (action *PushAction) MarshalJSON() (raw []byte, err error) {
if action.Action == ActionSetTweak {
data := map[string]interface{}{
"set_tweak": action.Tweak,
"value": action.Value,
}
return json.Marshal(&data)
} else {
data := string(action.Action)
return json.Marshal(&data)
}
}