approximate feature parity with rust attempt

.gitignore

@@ -1 +1,2 @@
 matrix-meshtastic-bridge.json
+matrix-meshtastic-bridge.db

bridge/bridge.go

@@ -0,0 +1,42 @@
+package bridge
+
+import (
+	"context"
+	"fmt"
+
+	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/matrix"
+	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/meshtastic/protobufs"
+	"github.com/sirupsen/logrus"
+)
+
+func RunBridge(ctx context.Context, fromRadioCh chan *protobufs.FromRadio) {
+	for {
+		fromRadio := <-fromRadioCh
+		switch payload := fromRadio.PayloadVariant.(type) {
+		case *protobufs.FromRadio_Channel:
+			logrus.WithField("type", "channel").Debugf("received %+v", payload)
+		case *protobufs.FromRadio_Packet:
+			if err := handlePacket(ctx, payload.Packet); err != nil {
+				logrus.WithError(err).Error("error handling meshtastic packet")
+			}
+		default:
+			logrus.Debugf("received unknown message type: %+v", payload)
+		}
+	}
+}
+
+func handlePacket(ctx context.Context, packet *protobufs.MeshPacket) error {
+	payload, ok := packet.PayloadVariant.(*protobufs.MeshPacket_Decoded)
+	if !ok {
+		return nil // ignore encrypted packets for now
+	}
+
+	switch payload.Decoded.Portnum {
+	case protobufs.PortNum_TEXT_MESSAGE_APP:
+		matrix.SendMessage(ctx, fmt.Sprintf("text from %x: %s (snr: %f, rssi: %d, hop limit: %d, hop start: %d)", packet.From, payload.Decoded.Payload, packet.RxSnr, packet.RxRssi, packet.HopLimit, packet.HopStart))
+	default:
+		logrus.WithField("type", protobufs.PortNum_name[int32(payload.Decoded.Portnum)]).Debug("ignoring unknown app payload")
+	}
+
+	return nil
+}

cmd/matrix-bridge-meshtastic/main.go

@@ -7,13 +7,17 @@ import (
 
 	"github.com/sirupsen/logrus"
 
+	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/bridge"
 	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/config"
+	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/db"
+	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/matrix"
 	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/meshtastic"
+	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/meshtastic/protobufs"
 )
 
 func main() {
 	if err := run(); err != nil {
-		panic(err)
+		logrus.WithError(err).Fatal("error running bridge")
 	}
 }
 
@@ -23,10 +27,21 @@ func run() error {
 		return err
 	}
 
+	if err := db.Migrate(); err != nil {
+		return err
+	}
+
 	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt)
 	defer cancel()
 
-	go meshtastic.Receive(ctx)
+	if err := matrix.Setup(ctx); err != nil {
+		return err
+	}
+
+	fromRadioCh := make(chan *protobufs.FromRadio)
+	go matrix.Run(ctx)
+	go meshtastic.Receive(ctx, fromRadioCh)
+	go bridge.RunBridge(ctx, fromRadioCh)
 
 	if err := meshtastic.SendConfigInit(ctx); err != nil {
 		logrus.WithError(err).Error("error sending init to meshtastic")
@@ -35,6 +50,7 @@ func run() error {
 	<-ctx.Done()
 
 	meshtastic.ShutdownReceiver()
+	matrix.Shutdown()
 
 	return nil
 }

config/config.go

@@ -6,10 +6,13 @@ import (
 	"time"
 
 	"github.com/sirupsen/logrus"
+	"maunium.net/go/mautrix/id"
 )
 
 type Config struct {
 	Meshtastic Meshtastic
+	Matrix     Matrix
+	Database   string
 }
 
 type Meshtastic struct {
@@ -18,7 +21,14 @@ type Meshtastic struct {
 	PollingInterval time.Duration
 }
 
+type Matrix struct {
+	User     id.UserID
+	Password string
+	Room     id.RoomID
+}
+
 var C = Config{
+	Database: "matrix-meshtastic-bridge.db",
 	Meshtastic: Meshtastic{
 		RequestTimeout:  time.Second * 5,
 		PollingInterval: time.Millisecond * 500,

db/db.go

@@ -0,0 +1,31 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.20.0
+
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+type DBTX interface {
+	ExecContext(context.Context, string, ...interface{}) (sql.Result, error)
+	PrepareContext(context.Context, string) (*sql.Stmt, error)
+	QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error)
+	QueryRowContext(context.Context, string, ...interface{}) *sql.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx *sql.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}

db/helper.go

@@ -0,0 +1,68 @@
+package db
+
+import (
+	"database/sql"
+	"embed"
+
+	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/config"
+	_ "github.com/mattn/go-sqlite3"
+	goose "github.com/pressly/goose/v3"
+	"github.com/sirupsen/logrus"
+)
+
+//go:embed migrations
+var migrations embed.FS
+
+func Migrate() error {
+	logrus.Info("running database migrations")
+
+	_, dbConn, err := Get()
+	if err != nil {
+		return err
+	}
+	defer dbConn.Close()
+
+	goose.SetBaseFS(migrations)
+
+	if err := goose.SetDialect("sqlite3"); err != nil {
+		return err
+	}
+
+	if err := goose.Up(dbConn, "migrations"); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Get the database and closable DB object
+// example usage:
+//
+//	  queries, dbconn, err := db.Get()
+//	  if err != nil {
+//		   return err
+//	  }
+//	  defer dbconn.Close()
+func Get() (*Queries, *sql.DB, error) {
+	db, err := sql.Open("sqlite3", config.C.Database)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	_, err = db.Exec("PRAGMA foreign_keys = ON")
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return New(db), db, nil
+}
+
+// NullableString accepts a string and returns an sql.NullString
+// if the input string is zero-length, the output will be marked
+// null
+func NullableString(s string) sql.NullString {
+	return sql.NullString{
+		Valid:  s != "",
+		String: s,
+	}
+}

db/matrix_sync.sql.go

@@ -0,0 +1,60 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.20.0
+// source: matrix_sync.sql
+
+package db
+
+import (
+	"context"
+)
+
+const matrixLoadFilterID = `-- name: MatrixLoadFilterID :one
+SELECT filter_id FROM matrix_filters WHERE user_id = ?
+`
+
+func (q *Queries) MatrixLoadFilterID(ctx context.Context, userID string) (string, error) {
+	row := q.db.QueryRowContext(ctx, matrixLoadFilterID, userID)
+	var filter_id string
+	err := row.Scan(&filter_id)
+	return filter_id, err
+}
+
+const matrixLoadNextBatch = `-- name: MatrixLoadNextBatch :one
+SELECT token FROM matrix_next_batch WHERE user_id = ?
+`
+
+func (q *Queries) MatrixLoadNextBatch(ctx context.Context, userID string) (string, error) {
+	row := q.db.QueryRowContext(ctx, matrixLoadNextBatch, userID)
+	var token string
+	err := row.Scan(&token)
+	return token, err
+}
+
+const matrixSaveFilterID = `-- name: MatrixSaveFilterID :exec
+INSERT INTO matrix_filters (user_id, filter_id) VALUES (?, ?) ON CONFLICT (user_id) DO UPDATE SET filter_id = excluded.filter_id
+`
+
+type MatrixSaveFilterIDParams struct {
+	UserID   string
+	FilterID string
+}
+
+func (q *Queries) MatrixSaveFilterID(ctx context.Context, arg MatrixSaveFilterIDParams) error {
+	_, err := q.db.ExecContext(ctx, matrixSaveFilterID, arg.UserID, arg.FilterID)
+	return err
+}
+
+const matrixSaveNextBatch = `-- name: MatrixSaveNextBatch :exec
+INSERT INTO matrix_next_batch (user_id, token) VALUES (?, ?) ON CONFLICT (user_id) DO UPDATE SET token = excluded.token
+`
+
+type MatrixSaveNextBatchParams struct {
+	UserID string
+	Token  string
+}
+
+func (q *Queries) MatrixSaveNextBatch(ctx context.Context, arg MatrixSaveNextBatchParams) error {
+	_, err := q.db.ExecContext(ctx, matrixSaveNextBatch, arg.UserID, arg.Token)
+	return err
+}

db/meshtastic_nodes.sql.go

@@ -0,0 +1,44 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.20.0
+// source: meshtastic_nodes.sql
+
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+const meshtasticNodeUpdate = `-- name: MeshtasticNodeUpdate :exec
+INSERT INTO meshtastic_nodes (node_num, meshtastic_id, long_name, short_name, mac, hw_model, public_key) VALUES (?, ?, ?, ?, ?, ?, ?) ON CONFLICT (node_num) DO UPDATE SET
+    meshtastic_id = excluded.meshtastic_id,
+    long_name = excluded.long_name,
+    short_name = excluded.short_name,
+    mac = excluded.mac,
+    hw_model = excluded.hw_model,
+    public_key = excluded.public_key
+`
+
+type MeshtasticNodeUpdateParams struct {
+	NodeNum      int64
+	MeshtasticID string
+	LongName     sql.NullString
+	ShortName    sql.NullString
+	Mac          sql.NullString
+	HwModel      sql.NullString
+	PublicKey    []byte
+}
+
+func (q *Queries) MeshtasticNodeUpdate(ctx context.Context, arg MeshtasticNodeUpdateParams) error {
+	_, err := q.db.ExecContext(ctx, meshtasticNodeUpdate,
+		arg.NodeNum,
+		arg.MeshtasticID,
+		arg.LongName,
+		arg.ShortName,
+		arg.Mac,
+		arg.HwModel,
+		arg.PublicKey,
+	)
+	return err
+}

db/migrations/001_init.sql

@@ -0,0 +1,40 @@
+-- +goose Up
+-- +goose StatementBegin
+PRAGMA foreign_keys = ON;
+
+CREATE TABLE meshtastic_nodes (
+    id INTEGER PRIMARY KEY NOT NULL,
+    node_num INTEGER NOT NULL,
+    meshtastic_id TEXT NOT NULL,
+    long_name TEXT,
+    short_name TEXT,
+    mac TEXT,
+    hw_model TEXT,
+    public_key BLOB,
+    matrix_id TEXT
+);
+
+CREATE TABLE channels (
+    id INTEGER PRIMARY KEY NOT NULL,
+    meshtastic_index INTEGER NOT NULL,
+    meshtastic_psk TEXT UNIQUE NOT NULL,
+    name TEXT,
+    matrix_room TEXT
+);
+
+CREATE TABLE matrix_filters (
+    user_id TEXT UNIQUE NOT NULL,
+    filter_id TEXT NOT NULL
+);
+
+CREATE TABLE matrix_next_batch (
+    user_id TEXT UNIQUE NOT NULL,
+    token TEXT NOT NULL
+);
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+DROP TABLE channels;
+DROP TABLE meshtastic_nodes;
+-- +goose StatementEnd

db/models.go

@@ -0,0 +1,39 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.20.0
+
+package db
+
+import (
+	"database/sql"
+)
+
+type Channel struct {
+	ID              int64
+	MeshtasticIndex int64
+	MeshtasticPsk   string
+	Name            sql.NullString
+	MatrixRoom      sql.NullString
+}
+
+type MatrixFilter struct {
+	UserID   string
+	FilterID string
+}
+
+type MatrixNextBatch struct {
+	UserID string
+	Token  string
+}
+
+type MeshtasticNode struct {
+	ID           int64
+	NodeNum      int64
+	MeshtasticID string
+	LongName     sql.NullString
+	ShortName    sql.NullString
+	Mac          sql.NullString
+	HwModel      sql.NullString
+	PublicKey    []byte
+	MatrixID     sql.NullString
+}

db/queries/matrix_sync.sql

@@ -0,0 +1,11 @@
+-- name: MatrixSaveFilterID :exec
+INSERT INTO matrix_filters (user_id, filter_id) VALUES (?, ?) ON CONFLICT (user_id) DO UPDATE SET filter_id = excluded.filter_id;
+
+-- name: MatrixLoadFilterID :one
+SELECT filter_id FROM matrix_filters WHERE user_id = ?;
+
+-- name: MatrixSaveNextBatch :exec
+INSERT INTO matrix_next_batch (user_id, token) VALUES (?, ?) ON CONFLICT (user_id) DO UPDATE SET token = excluded.token;
+
+-- name: MatrixLoadNextBatch :one
+SELECT token FROM matrix_next_batch WHERE user_id = ?;

db/queries/meshtastic_nodes.sql

@@ -0,0 +1,8 @@
+-- name: MeshtasticNodeUpdate :exec
+INSERT INTO meshtastic_nodes (node_num, meshtastic_id, long_name, short_name, mac, hw_model, public_key) VALUES (?, ?, ?, ?, ?, ?, ?) ON CONFLICT (node_num) DO UPDATE SET
+    meshtastic_id = excluded.meshtastic_id,
+    long_name = excluded.long_name,
+    short_name = excluded.short_name,
+    mac = excluded.mac,
+    hw_model = excluded.hw_model,
+    public_key = excluded.public_key;

go.mod

@@ -3,8 +3,29 @@ module git.janky.solutions/finn/matrix-meshtastic-bridge-go
 go 1.22.7
 
 require (
+	github.com/mattn/go-sqlite3 v1.14.24
+	github.com/pressly/goose/v3 v3.22.1
+	github.com/rs/zerolog v1.33.0
 	github.com/sirupsen/logrus v1.9.3
 	google.golang.org/protobuf v1.35.1
+	maunium.net/go/mautrix v0.21.1
 )
 
-require golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
+require (
+	filippo.io/edwards25519 v1.1.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mfridman/interpolate v0.0.2 // indirect
+	github.com/sethvargo/go-retry v0.3.0 // indirect
+	github.com/tidwall/gjson v1.18.0 // indirect
+	github.com/tidwall/match v1.1.1 // indirect
+	github.com/tidwall/pretty v1.2.0 // indirect
+	github.com/tidwall/sjson v1.2.5 // indirect
+	go.mau.fi/util v0.8.1 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/crypto v0.28.0 // indirect
+	golang.org/x/exp v0.0.0-20241009180824-f66d83c29e7c // indirect
+	golang.org/x/net v0.30.0 // indirect
+	golang.org/x/sync v0.8.0 // indirect
+	golang.org/x/sys v0.26.0 // indirect
+)

go.sum

@@ -1,21 +1,92 @@
+filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
+filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
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+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
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+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
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 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/pressly/goose/v3 v3.22.1 h1:2zICEfr1O3yTP9BRZMGPj7qFxQ+ik6yeo+z1LMuioLc=
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+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
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+github.com/sethvargo/go-retry v0.3.0/go.mod h1:mNX17F0C/HguQMyMyJxcnU471gOZGxCLyYaFyAZraas=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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+go.mau.fi/util v0.8.1 h1:Ga43cz6esQBYqcjZ/onRoVnYWoUwjWbsxVeJg2jOTSo=
+go.mau.fi/util v0.8.1/go.mod h1:T1u/rD2rzidVrBLyaUdPpZiJdP/rsyi+aTzn0D+Q6wc=
+go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
+go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
+golang.org/x/crypto v0.28.0 h1:GBDwsMXVQi34v5CCYUm2jkJvu4cbtru2U4TN2PSyQnw=
+golang.org/x/crypto v0.28.0/go.mod h1:rmgy+3RHxRZMyY0jjAJShp2zgEdOqj2AO7U0pYmeQ7U=
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+golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
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+golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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 google.golang.org/protobuf v1.35.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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+modernc.org/gc/v3 v3.0.0-20240107210532-573471604cb6/go.mod h1:Qz0X07sNOR1jWYCrJMEnbW/X55x206Q7Vt4mz6/wHp4=
+modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4=
+modernc.org/mathutil v1.6.0/go.mod h1:Ui5Q9q1TR2gFm0AQRqQUaBWFLAhQpCwNcuhBOSedWPo=
+modernc.org/memory v1.8.0 h1:IqGTL6eFMaDZZhEWwcREgeMXYwmW83LYW8cROZYkg+E=
+modernc.org/memory v1.8.0/go.mod h1:XPZ936zp5OMKGWPqbD3JShgd/ZoQ7899TUuQqxY+peU=
+modernc.org/sqlite v1.33.0 h1:WWkA/T2G17okiLGgKAj4/RMIvgyMT19yQ038160IeYk=
+modernc.org/sqlite v1.33.0/go.mod h1:9uQ9hF/pCZoYZK73D/ud5Z7cIRIILSZI8NdIemVMTX8=
+modernc.org/strutil v1.2.0 h1:agBi9dp1I+eOnxXeiZawM8F4LawKv4NzGWSaLfyeNZA=
+modernc.org/strutil v1.2.0/go.mod h1:/mdcBmfOibveCTBxUl5B5l6W+TTH1FXPLHZE6bTosX0=
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+modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=

matrix/matrix.go

@@ -0,0 +1,75 @@
+package matrix
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"net/url"
+	"time"
+
+	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/config"
+	"github.com/rs/zerolog"
+	"github.com/sirupsen/logrus"
+	"maunium.net/go/mautrix"
+)
+
+var client *mautrix.Client
+
+func Setup(ctx context.Context) error {
+	clientWellKnown, err := mautrix.DiscoverClientAPI(ctx, config.C.Matrix.User.Homeserver())
+	if err != nil {
+		return err
+	}
+
+	homeserverURL, err := url.Parse(clientWellKnown.Homeserver.BaseURL)
+	if err != nil {
+		return fmt.Errorf("error parsing homeserver URL %s: %v", clientWellKnown.Homeserver.BaseURL, err)
+	}
+
+	client = &mautrix.Client{
+		HomeserverURL: homeserverURL,
+		UserAgent:     "matrix-meshtastic-bridge-go/unversioned",
+		Client:        &http.Client{Timeout: 180 * time.Second},
+		Syncer:        mautrix.NewDefaultSyncer(),
+		Log:           zerolog.New(logrus.New().Out),
+		Store:         dbSyncStore{},
+	}
+
+	_, err = client.Login(ctx, &mautrix.ReqLogin{
+		Type: mautrix.AuthTypePassword,
+		Identifier: mautrix.UserIdentifier{
+			Type: mautrix.IdentifierTypeUser,
+			User: config.C.Matrix.User.Localpart(),
+		},
+		Password:           config.C.Matrix.Password,
+		DeviceID:           "matrix-meshtastic-bridge",
+		StoreCredentials:   true,
+		StoreHomeserverURL: true,
+	})
+	if err != nil {
+		logrus.WithError(err).Fatal("failed to login to matrix")
+	}
+
+	return nil
+}
+
+func Run(ctx context.Context) {
+	for {
+		if err := client.Sync(); err != nil {
+			logrus.WithError(err).Error("error syncing with matrix")
+		}
+	}
+}
+
+func Shutdown() {
+	client.StopSync()
+}
+
+func SendMessage(ctx context.Context, text string) error {
+	_, err := client.SendText(ctx, config.C.Matrix.Room, text)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

matrix/syncer.go

@@ -0,0 +1,84 @@
+package matrix
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+
+	"git.janky.solutions/finn/matrix-meshtastic-bridge-go/db"
+	"maunium.net/go/mautrix/id"
+)
+
+type dbSyncStore struct{}
+
+func (dbSyncStore) SaveFilterID(ctx context.Context, userID id.UserID, filterID string) error {
+	queries, dbconn, err := db.Get()
+	if err != nil {
+		return err
+	}
+	defer dbconn.Close()
+
+	err = queries.MatrixSaveFilterID(ctx, db.MatrixSaveFilterIDParams{
+		UserID:   userID.String(),
+		FilterID: filterID,
+	})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (dbSyncStore) LoadFilterID(ctx context.Context, userID id.UserID) (string, error) {
+	queries, dbconn, err := db.Get()
+	if err != nil {
+		return "", err
+	}
+	defer dbconn.Close()
+
+	filterID, err := queries.MatrixLoadFilterID(ctx, userID.String())
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return "", nil
+		}
+		return "", err
+	}
+
+	return filterID, nil
+}
+
+func (dbSyncStore) SaveNextBatch(ctx context.Context, userID id.UserID, nextBatchToken string) error {
+	queries, dbconn, err := db.Get()
+	if err != nil {
+		return err
+	}
+	defer dbconn.Close()
+
+	err = queries.MatrixSaveNextBatch(ctx, db.MatrixSaveNextBatchParams{
+		UserID: userID.String(),
+		Token:  nextBatchToken,
+	})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (dbSyncStore) LoadNextBatch(ctx context.Context, userID id.UserID) (string, error) {
+	queries, dbconn, err := db.Get()
+	if err != nil {
+		return "", err
+	}
+	defer dbconn.Close()
+
+	token, err := queries.MatrixLoadNextBatch(ctx, userID.String())
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return "", nil
+		}
+		return "", err
+	}
+
+	return token, nil
+}

meshtastic/meshtastic.go

@@ -20,19 +20,23 @@ const (
 	pathToRadio   = "/api/v1/toradio"
 )
 
-func Receive(ctx context.Context) {
+func Receive(ctx context.Context, ch chan *protobufs.FromRadio) {
-	for ctx.Err() == nil {
+	t := time.NewTicker(config.C.Meshtastic.PollingInterval)
-		fromRadio, err := getFromRadio(ctx)
+	for {
-		if err != nil {
+		select {
-			logrus.WithError(err).Error("error communicating with radio")
+		case <-t.C:
+			fromRadio, err := getFromRadio(ctx)
+			if err != nil {
+				logrus.WithError(err).Error("error communicating with radio")
+			}
+
+			if fromRadio != nil && fromRadio.PayloadVariant != nil {
+				ch <- fromRadio
+			}
+
+		case <-ctx.Done():
+			return
 		}
-
-		if fromRadio != nil && fromRadio.PayloadVariant != nil {
-			logrus.Debugf("fromRadio: %+v", fromRadio)
-		}
-
-		time.Sleep(config.C.Meshtastic.PollingInterval)
-
 	}
 }
 

sqlc.yaml

@@ -0,0 +1,9 @@
+version: "2"
+sql:
+  - engine: "sqlite"
+    schema: "db/migrations"
+    queries: "db/queries"
+    gen:
+      go:
+        package: "db"
+        out: "db"