package objectstore

import (
	"errors"
	"os"
	"strings"
	"testing"
	"time"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/service/s3"
	"github.com/aws/aws-sdk-go-v2/service/s3/types"
	"go.uber.org/zap"

	"spark-server/internal/pkg/errs"
)

func TestParseEndpoint(t *testing.T) {
	host, secure, err := parseEndpoint("http://47.236.66.9:9000", true)
	if err != nil || host != "47.236.66.9:9000" || secure {
		t.Fatalf("%s %v %v", host, secure, err)
	}
	host, secure, err = parseEndpoint("47.236.66.9:9000", false)
	if err != nil || host != "47.236.66.9:9000" || secure {
		t.Fatalf("plain %s %v %v", host, secure, err)
	}
	host, secure, err = parseEndpoint("https://fs.example.com", false)
	if err != nil || host != "fs.example.com" || !secure {
		t.Fatalf("https %s %v %v", host, secure, err)
	}
}

func TestOpenEmpty(t *testing.T) {
	s, err := Open(&Options{})
	if err != nil || s.Ready() {
		t.Fatalf("ready=%v err=%v", s.Ready(), err)
	}
}

func TestPresignLocal(t *testing.T) {
	client := newS3Client(defaultRegion, "http://127.0.0.1:9000", "ak", "sk")
	s := &Store{client: client, presign: s3.NewPresignClient(client), bucket: "spark"}
	u, err := s.PresignPut(t.Context(), "chat/a.jpg", "image/jpeg", 1024, time.Hour)
	if err != nil {
		t.Fatal(err)
	}
	if !strings.Contains(u, "127.0.0.1:9000/spark/chat/a.jpg") {
		t.Fatalf("%s", u)
	}
	signed := strings.ToLower(u)
	if !strings.Contains(signed, "content-length") || !strings.Contains(signed, "if-none-match") {
		t.Fatalf("unsigned size/overwrite headers: %s", u)
	}
	g, err := s.PresignGet(t.Context(), "perm/avatar/1.jpg", time.Minute)
	if err != nil {
		t.Fatal(err)
	}
	if !strings.Contains(g, "perm/avatar/1.jpg") {
		t.Fatalf("%s", g)
	}
}

func TestPresignPutRejectsZeroSize(t *testing.T) {
	client := newS3Client(defaultRegion, "http://127.0.0.1:9000", "ak", "sk")
	s := &Store{client: client, presign: s3.NewPresignClient(client), bucket: "spark"}
	if _, err := s.PresignPut(t.Context(), "chat/a.jpg", "image/jpeg", 0, time.Hour); !errors.Is(err, errs.ErrInvalidArgument) {
		t.Fatalf("%v", err)
	}
}

func TestPresignPublicEndpoint(t *testing.T) {
	internal, public, err := newClients(&Options{
		Endpoint:       "http://rustfs:9000",
		PublicEndpoint: "https://sparkr.wyrs365.com/",
		AccessKey:      "ak",
		SecretKey:      "sk",
	})
	if err != nil {
		t.Fatal(err)
	}
	s := &Store{client: internal, presign: s3.NewPresignClient(public), bucket: "spark"}
	u, err := s.PresignPut(t.Context(), "chat/a.jpg", "image/jpeg", 1024, time.Hour)
	if err != nil {
		t.Fatal(err)
	}
	if !strings.Contains(u, "https://sparkr.wyrs365.com/spark/chat/a.jpg") {
		t.Fatalf("%s", u)
	}
	if strings.Contains(u, "rustfs:9000") {
		t.Fatalf("internal host leaked: %s", u)
	}
}

func TestGetPutNotReady(t *testing.T) {
	s, err := Open(&Options{})
	if err != nil {
		t.Fatal(err)
	}
	if _, err := s.Get(t.Context(), "perm/a"); !errors.Is(err, errs.ErrAvailable) {
		t.Fatalf("get %v", err)
	}
	if err := s.Put(t.Context(), "perm/a", []byte("x"), "image/jpeg"); !errors.Is(err, errs.ErrAvailable) {
		t.Fatalf("put %v", err)
	}
}

func TestPublicReadPolicyCoversAvatarsOnly(t *testing.T) {
	p := publicReadPolicy("spark")
	if !strings.Contains(p, "spark/perm/avatar/*") || !strings.Contains(p, "spark/perm/group/*") {
		t.Fatalf("%s", p)
	}
	if strings.Contains(p, "chat/") || strings.Contains(p, "perm/fav") || strings.Contains(p, "perm/moment") {
		t.Fatalf("chat/fav/moment must stay private: %s", p)
	}
}

func TestMapObjectErr(t *testing.T) {
	err := mapObjectErr(&types.NoSuchKey{Message: aws.String("gone")})
	if !errors.Is(err, errs.ErrMediaExpired) {
		t.Fatalf("%v", err)
	}
	err = mapObjectErr(errors.New("boom"))
	if !errors.Is(err, errs.ErrOperatFail) {
		t.Fatalf("%v", err)
	}
}

func TestOpenLive(t *testing.T) {
	if os.Getenv("SPARK_S3_LIVE") == "" {
		t.Skip("set SPARK_S3_LIVE=1 to hit RustFS")
	}
	s, err := Open(&Options{
		Endpoint:       "47.236.66.9:9000",
		AccessKey:      os.Getenv("SPARK_S3_ACCESS_KEY"),
		SecretKey:      os.Getenv("SPARK_S3_SECRET_KEY"),
		Bucket:         "spark",
		ChatExpireDays: 365,
		Log:            zap.NewNop(),
	})
	if err != nil {
		t.Fatal(err)
	}
	if !s.Ready() {
		t.Fatal("not ready")
	}
	if err := s.Ping(t.Context()); err != nil {
		t.Fatal(err)
	}
}