// FILE: ./internal/normalizers/builtins.go
package normalizers

import (
	fknormalize "gitea.maximumdirect.net/ejr/feedkit/processors/normalize"

	"gitea.maximumdirect.net/ejr/weatherfeeder/internal/normalizers/nws"
	"gitea.maximumdirect.net/ejr/weatherfeeder/internal/normalizers/openmeteo"
	"gitea.maximumdirect.net/ejr/weatherfeeder/internal/normalizers/openweather"
)

var builtinRegistrations = []func([]fknormalize.Normalizer) []fknormalize.Normalizer{
	nws.Register,
	openmeteo.Register,
	openweather.Register,
}

// RegisterBuiltins registers all normalizers shipped with this binary.
//
// This mirrors internal/sources.RegisterBuiltins, but note the selection model:
//
//   - sources are built by name (cfg.Driver -> factory)
//   - normalizers are selected by Match() (event.Schema -> first match wins)
//
// Registration order matters because feedkit normalize.Processor is "first match wins".
// In weatherfeeder we avoid ambiguity by matching strictly on schema constants, but
// we still keep ordering stable as a best practice.
func RegisterBuiltins(in []fknormalize.Normalizer) []fknormalize.Normalizer {
	out := in

	// Keep this intentionally boring: delegate registration to provider subpackages
	// so main.go stays clean and each provider owns its own mapping logic.
	//
	// Order here should be stable across releases to reduce surprises when adding
	// new normalizers.
	for _, register := range builtinRegistrations {
		out = register(out)
	}

	return out
}