chat/internal/handlers/handlers.go

// Package handlers provides HTTP request handlers for the chat server.
package handlers

import (
	"context"
	"encoding/json"
	"log/slog"
	"net/http"

	"git.eeqj.de/sneak/chat/internal/config"
	"git.eeqj.de/sneak/chat/internal/db"
	"git.eeqj.de/sneak/chat/internal/globals"
	"git.eeqj.de/sneak/chat/internal/healthcheck"
	"git.eeqj.de/sneak/chat/internal/logger"
	"go.uber.org/fx"
)

// Params defines the dependencies for creating Handlers.
type Params struct {
	fx.In

	Logger      *logger.Logger
	Globals     *globals.Globals
	Config      *config.Config
	Database    *db.Database
	Healthcheck *healthcheck.Healthcheck
}

// Handlers manages HTTP request handling.
type Handlers struct {
	params *Params
	log    *slog.Logger
	hc     *healthcheck.Healthcheck
}

// New creates a new Handlers instance.
func New(lc fx.Lifecycle, params Params) (*Handlers, error) {
	s := new(Handlers)
	s.params = &params
	s.log = params.Logger.Get()
	s.hc = params.Healthcheck

	lc.Append(fx.Hook{
		OnStart: func(_ context.Context) error {
			return nil
		},
	})

	return s, nil
}

func (s *Handlers) respondJSON(w http.ResponseWriter, _ *http.Request, data any, status int) {
	w.WriteHeader(status)
	w.Header().Set("Content-Type", "application/json")

	if data != nil {
		err := json.NewEncoder(w).Encode(data)
		if err != nil {
			s.log.Error("json encode error", "error", err)
		}
	}
}