package entity

import (
	"bytes"
	"encoding/json"
	"strings"
	"testing"
)

func TestTextMarshalIsJSONBytesNotRawString(t *testing.T) {
	c := NewText("hello")
	raw, err := c.Marshal()
	if err != nil {
		t.Fatal(err)
	}
	if bytes.Equal(raw, []byte("hello")) || !json.Valid(raw) {
		t.Fatalf("want json bytes, got %q", raw)
	}
	if !bytes.Contains(raw, []byte(`"t":1`)) || !bytes.Contains(raw, []byte(`"body":"hello"`)) {
		t.Fatalf("%s", raw)
	}
	got, err := UnmarshalContent(raw)
	if err != nil {
		t.Fatal(err)
	}
	if got.Type != TypeText || got.Text == nil || got.Text.Body != "hello" {
		t.Fatalf("%+v", got)
	}
}

func TestMediaTypesRequireObjectKey(t *testing.T) {
	cases := []*Content{
		NewImage(&Image{Key: "obj/a.jpg", Width: 10, Height: 10, Mime: "image/jpeg"}),
		NewVoice(&Voice{Key: "obj/a.m4a", DurationMS: 1200}),
		NewVideo(&Video{Key: "obj/a.mp4", CoverKey: "obj/c.jpg"}),
		NewGIF(&GIF{Key: "obj/a.gif", Mime: "image/gif"}),
		NewFile(&File{Key: "obj/a.pdf", Name: "a.pdf", Size: 9}),
		NewEmoji(&Emoji{Pack: "spark", ID: "smile"}),
		NewLocation(&Location{Lat: 31.2, Lng: 121.5, Name: "Shanghai"}),
		NewSystem(&System{Kind: "member_join", Body: "joined"}),
	}
	for _, c := range cases {
		raw, err := c.Marshal()
		if err != nil {
			t.Fatalf("type %d: %v", c.Type, err)
		}
		if !json.Valid(raw) {
			t.Fatalf("type %d not json %q", c.Type, raw)
		}
		got, err := UnmarshalContent(raw)
		if err != nil || got.Type != c.Type {
			t.Fatalf("type %d roundtrip %v %+v", c.Type, err, got)
		}
	}
}

func TestRejectsRawStringAndEmptyKey(t *testing.T) {
	if _, err := UnmarshalContent([]byte("just a string")); err == nil {
		t.Fatal("raw string")
	}
	if _, err := NewText("  ").Marshal(); err == nil {
		t.Fatal("blank text")
	}
	if _, err := NewImage(&Image{}).Marshal(); err == nil || !strings.Contains(err.Error(), "key") {
		t.Fatalf("image key: %v", err)
	}
	bad := &Content{Type: TypeText, Text: &Text{Body: "x"}, Image: &Image{Key: "k"}}
	if _, err := bad.Marshal(); err == nil {
		t.Fatal("two payloads")
	}
}

func TestMessagePayloadChecksColumnType(t *testing.T) {
	raw, err := NewText("hi").Marshal()
	if err != nil {
		t.Fatal(err)
	}
	m := &Message{Type: TypeImage, Content: raw}
	if _, err := m.Payload(); err == nil {
		t.Fatal("mismatch")
	}
	m.Type = TypeText
	c, err := m.Payload()
	if err != nil || c.Text.Body != "hi" {
		t.Fatalf("%v %+v", err, c)
	}
}

func TestObjectKeysAndReplace(t *testing.T) {
	img := NewImage(&Image{Key: "chat/a.jpg", ThumbKey: "chat/t.jpg"})
	keys := img.ObjectKeys()
	if len(keys) != 2 || keys[0] != "chat/a.jpg" {
		t.Fatalf("%v", keys)
	}
	img.ReplaceObjectKeys(map[string]string{"chat/a.jpg": "perm/fav/1/x.jpg", "chat/t.jpg": "perm/fav/1/y.jpg"})
	if img.Image.Key != "perm/fav/1/x.jpg" || img.Image.ThumbKey != "perm/fav/1/y.jpg" {
		t.Fatalf("%+v", img.Image)
	}
}