mirror of
https://github.com/wisplite/tether.git
synced 2026-05-01 06:22:41 -05:00
70 lines
2.1 KiB
Go
70 lines
2.1 KiB
Go
package tether
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import (
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"encoding/json"
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"log/slog"
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"net/http"
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"github.com/wisplite/tether/reactivity"
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"gorm.io/gorm"
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)
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type Engine struct {
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db *gorm.DB
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mutations map[string]func(ctx *MutationCtx) error
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queries map[string]func(ctx *QueryCtx) error
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tracker *reactivity.Tracker
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}
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func NewEngine(db *gorm.DB) *Engine {
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slog.SetLogLoggerLevel(slog.LevelDebug)
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tracker := reactivity.NewTracker()
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return &Engine{db: db, mutations: make(map[string]func(ctx *MutationCtx) error), queries: make(map[string]func(ctx *QueryCtx) error), tracker: tracker}
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}
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func (e *Engine) RegisterMutation(name string, mutation func(ctx *MutationCtx) error) {
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e.mutations[name] = mutation // stores the mutation in the list of valid mutations
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slog.Debug("Registered mutation", "name", name)
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}
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func (e *Engine) RegisterQuery(name string, query func(ctx *QueryCtx) error) {
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e.queries[name] = query // stores the query in the list of valid queries
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slog.Debug("Registered query", "name", name)
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}
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func (e *Engine) CreateTable(name string, schema interface{}) {
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e.db.AutoMigrate(schema)
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slog.Debug("Created table", "name", name)
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}
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func (e *Engine) Handle(w http.ResponseWriter, r *http.Request) {
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reactivity.Handle(w, r, e, e.tracker) // wraps the raw websocket connection with the engine handler
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}
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func (e *Engine) OnConnect(clientID string) error {
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slog.Debug("Connected to websocket", "client", clientID)
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// TODO: implement the logic to handle the connection
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return nil
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}
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func (e *Engine) OnDisconnect(clientID string) error {
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slog.Debug("Disconnected from websocket", "client", clientID)
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// TODO: implement the logic to handle the disconnection
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return nil
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}
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func (e *Engine) OnReceiveMessage(clientID string, msg map[string]interface{}) error {
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slog.Debug("Received message", "from", clientID, "message", msg)
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message, err := json.Marshal(map[string]interface{}{
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"type": "query",
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"location": msg["query"],
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"data": "test",
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})
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if err != nil {
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slog.Error("Failed to marshal message", "error", err)
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return err
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}
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e.tracker.SendMessage(clientID, message)
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return nil
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}
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