package briefing

import (
	"strings"
	"testing"

	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
)

func TestDefaultModuleRegistryValidatesReportDefaults(t *testing.T) {
	registry := MustDefaultModuleRegistry()
	for _, definition := range report.DefaultRegistry().All() {
		if err := registry.ValidateComposition(definition.ID, definition.Modules); err != nil {
			t.Fatalf("ValidateComposition(%s) error = %v", definition.ID, err)
		}
	}
}

func TestModuleRegistryRejectsUnknownModule(t *testing.T) {
	registry := MustDefaultModuleRegistry()
	err := registry.ValidateComposition(report.DailyToday, []module.ConfigItem{{ID: module.ID("unknown")}})
	if err == nil || !strings.Contains(err.Error(), `unknown module "unknown"`) {
		t.Fatalf("error = %v, want unknown module", err)
	}
}

func TestModuleRegistryRejectsDuplicateModuleIDs(t *testing.T) {
	registry := MustDefaultModuleRegistry()
	err := registry.ValidateComposition(report.DailyToday, []module.ConfigItem{
		{ID: module.Metadata},
		{ID: module.Metadata},
	})
	if err == nil || !strings.Contains(err.Error(), `duplicate module "metadata"`) {
		t.Fatalf("error = %v, want duplicate module", err)
	}
}

func TestModuleRegistryRejectsDuplicateStanzaNames(t *testing.T) {
	_, err := NewModuleRegistry([]ModuleDefinition{
		{ID: module.Metadata, StanzaName: "metadata", DefaultOptions: module.MetadataOptions{}},
		{ID: module.CurrentConditions, StanzaName: "metadata", DefaultOptions: module.CurrentConditionsOptions{}},
	})
	if err == nil || !strings.Contains(err.Error(), `duplicate stanza name "metadata"`) {
		t.Fatalf("error = %v, want duplicate stanza name", err)
	}
}

func TestModuleRegistryRejectsIncompatibleReports(t *testing.T) {
	registry := MustDefaultModuleRegistry()
	err := registry.ValidateComposition(report.DailyToday, []module.ConfigItem{{ID: module.StormWindowSummary}})
	if err == nil || !strings.Contains(err.Error(), `module "storm_window_summary" is not compatible with report "daily_today"`) {
		t.Fatalf("error = %v, want incompatible report", err)
	}
}

func TestModuleRegistryRejectsInvalidOptionShapes(t *testing.T) {
	registry := MustDefaultModuleRegistry()
	err := registry.ValidateComposition(report.DailyToday, []module.ConfigItem{
		{ID: module.Metadata, Options: module.CurrentConditionsOptions{}},
	})
	if err == nil || !strings.Contains(err.Error(), `module "metadata" options have type module.CurrentConditionsOptions, want module.MetadataOptions`) {
		t.Fatalf("error = %v, want invalid option shape", err)
	}
}

func TestModuleRegistryAcceptsTypedOptions(t *testing.T) {
	registry := MustDefaultModuleRegistry()
	err := registry.ValidateComposition(report.DailyToday, []module.ConfigItem{
		{ID: module.Metadata, Options: module.MetadataOptions{}},
		{ID: module.CurrentConditions, Options: &module.CurrentConditionsOptions{}},
	})
	if err != nil {
		t.Fatalf("ValidateComposition() error = %v", err)
	}
}