package server

import (
	"errors"
	"git.sendico.io/tech/sxchnge/product/app/api"
	"git.sendico.io/tech/sxchnge/shared/errors"
	"os"
	"strings"
	"testing"
)

func TestIncompleteConfigReturnsProjectError(t *testing.T) {
	for _, data := range []string{"api: {}", "api: {middleware: {}}\ndatabase: {driver: mongodb}", "api: {middleware: {}}\ndatabase: {driver: mongodb}\nhttp_server: {}"} {
		instance := &Imp{runtime: api.RuntimeConfig{}}
		if err := instance.decodeConfig([]byte(data)); !errors.Is(err, merrors.ErrInvalidArg) {
			t.Fatalf("expected configuration error, got %v", err)
		}
	}
}
func TestExampleConfigMatchesCopiedRuntime(t *testing.T) {
	data, err := os.ReadFile("../../../config.example.yml")
	if err != nil {
		t.Fatal(err)
	}
	instance := &Imp{runtime: api.RuntimeConfig{}}
	if err := instance.decodeConfig(data); err != nil {
		t.Fatal(err)
	}
	if err := instance.config.API.SharedConfig().Mw.Token.Validate(); err != nil {
		t.Fatal(err)
	}
	if err := instance.config.API.SharedConfig().Mw.CORS.Validate(); err != nil {
		t.Fatal(err)
	}
}

func TestVersionSelectionPreservesOmittedAndEmptyLists(t *testing.T) {
	data, err := os.ReadFile("../../../config.example.yml")
	if err != nil {
		t.Fatal(err)
	}
	for _, tc := range []struct {
		name, setting string
		wantNil       bool
		wantLength    int
	}{
		{name: "omitted", wantNil: true},
		{name: "disabled", setting: "  versions: []\n"},
		{name: "explicit", setting: "  versions: [{version: v1, path: /gateway/v1}]\n", wantLength: 1},
	} {
		t.Run(tc.name, func(t *testing.T) {
			instance := &Imp{runtime: api.RuntimeConfig{}}
			configured := strings.Replace(string(data), "api:\n", "api:\n"+tc.setting, 1)
			if err := instance.decodeConfig([]byte(configured)); err != nil {
				t.Fatal(err)
			}
			versions := instance.config.API.SharedConfig().Versions
			if (versions == nil) != tc.wantNil || len(versions) != tc.wantLength {
				t.Fatalf("unexpected versions: %#v", versions)
			}
			if tc.wantLength == 1 && (versions[0].Version != "v1" || versions[0].Path != "/gateway/v1") {
				t.Fatalf("lost version configuration: %#v", versions)
			}
		})
	}
}