package model

import (
	"encoding/json"
	"testing"
	"reflect"
)

var recipes = [...]string {
	`{"id":1,"title":"My recipe","portions":4,"url":"https://example.org","notes":"Sooo delicious","created":1707591792,"last_changed":1707591799}`,
	`{"id":2,"title":"My nice recipe","portions":2,"url":"http://example.org","notes":"Sooooo delicious","created":1707591800,"last_changed":1707591900}`,
}

func TestRecipeJson(t *testing.T) {
	for _, v := range recipes {
		var r Recipe
		err := json.Unmarshal([]byte(v), &r)
		if err != nil {
			t.Fatal(err)
		}
		var encoded []byte
		encoded, err = json.Marshal(&r)
		if err != nil {
			t.Fatal(err)
		}
		if string(encoded) != v {
			t.Fatalf("Encoded JSON '%s' does not match original '%s'",
			         string(encoded), v)
		}
	}
}

func TestRecipeCrud(t *testing.T) {
	InitStorage()
	defer RemoveStorage()

	InitDatabase()
	defer CloseDatabase()

	var original, readback, update, updated, deleted Recipe

	err := json.Unmarshal([]byte(recipes[0]), &original)
	if err != nil {
		t.Fatalf("Failed to unmarshal test recipe: %v\n", err)
	}

	err = original.Create()
	if err != nil {
		t.Fatalf("Failed to create test recipe in DB: %v\n", err)
	}

	readback.Id = original.Id
	err = readback.Read()
	if err != nil {
		t.Fatalf("Failed to create test recipe in DB: %v\n", err)
	}

	if !reflect.DeepEqual(original, readback) {
		t.Fatalf("Recipes did not match after create / read cycle")
	}

	err = json.Unmarshal([]byte(recipes[1]), &update)
	if err != nil {
		t.Fatalf("Failed to unmarshal test recipe: %v\n", err)
	}
	update.Id = original.Id

	err = update.Update()
	if err != nil {
		t.Fatalf("Failed to update recipe: %v\n", err)
	}

	updated.Id = original.Id
	err = updated.Read()
	if err != nil {
		t.Fatalf("Failed to read back updated recipe: %v\n", err)
	}

	if !reflect.DeepEqual(updated, update) {
		t.Fatalf("Recipes did not match after update / read cycle")
	}

	if reflect.DeepEqual(updated, original) {
		t.Fatalf("Updated and original recipe match")
	}

	err = updated.Delete()
	if err != nil {
		t.Fatalf("Failed to delete updated recipe: %v\n", err)
	}

	deleted.Id = updated.Id
	err = deleted.Read()
	if err == nil {
		t.Fatalf("Was able to read back deleted recipe")
	}
}