Add hash-lists filtering, format code, prepare API

internal/bot/getState.go

@@ -0,0 +1,80 @@
+package bot
+
+import (
+	"encoding/json"
+	"fmt"
+	"maunium.net/go/mautrix"
+	"maunium.net/go/mautrix/event"
+	"maunium.net/go/mautrix/id"
+)
+
+type StateEventPL struct {
+	Type           string              `json:"type"`
+	Sender         string              `json:"sender"`
+	RoomID         string              `json:"room_id"`
+	EventID        string              `json:"event_id"`
+	OriginServerTS int64               `json:"origin_server_ts"`
+	Content        StateEventPLContent `json:"content"`
+	Unsigned       struct {
+		Age int `json:"age"`
+	} `json:"unsigned"`
+}
+
+type StateEventPLContent struct {
+	Ban           int            `json:"ban"`
+	Events        map[string]int `json:"events"`
+	EventsDefault int            `json:"events_default"`
+	Invite        int            `json:"invite"`
+	Kick          int            `json:"kick"`
+	Notifications map[string]int `json:"notifications"`
+	Redact        int            `json:"redact"`
+	StateDefault  int            `json:"state_default"`
+	Users         map[string]int `json:"users"`
+	UsersDefault  int            `json:"users_default"`
+}
+
+func GetRoomState(matrixClient *mautrix.Client, roomId id.RoomID) (*StateEventPLContent, error) {
+	url := matrixClient.BuildURL("rooms", roomId.String(), "state")
+	res, err := matrixClient.MakeRequest("GET", url, nil, nil)
+	if err != nil {
+		return nil, fmt.Errorf("ERROR: Could request room state - %v", err)
+	}
+
+	var stateEvents []StateEventPL
+
+	err = json.Unmarshal(res, &stateEvents)
+	if err != nil {
+		return nil, fmt.Errorf("ERROR: Could parse room state - %v", err)
+	}
+
+	var plEventContent StateEventPLContent
+
+	found := false
+
+	for _, e2 := range stateEvents {
+		if e2.Type != event.StatePowerLevels.Type {
+			continue
+		}
+
+		found = true
+		plEventContent = e2.Content
+	}
+
+	if !found {
+		return nil, fmt.Errorf("ERROR: Could find room power level - %v", err)
+	}
+
+	if plEventContent.Events == nil {
+		plEventContent.Events = make(map[string]int)
+	}
+
+	if plEventContent.Notifications == nil {
+		plEventContent.Notifications = make(map[string]int)
+	}
+
+	if plEventContent.Users == nil {
+		plEventContent.Users = make(map[string]int)
+	}
+
+	return &plEventContent, nil
+}