From c68acb53c8fb68a9517e51775213d4c27fb77632 Mon Sep 17 00:00:00 2001
From: The Magician <themagician@engineer.com>
Date: Thu, 12 Sep 2024 13:32:01 +0100
Subject: [PATCH] Extract filter functionality

---
 sevenkeys/logic/filter.go      |  29 +++
 sevenkeys/logic/filter_test.go | 402 +++++++++++++++++++++++++++++++++
 2 files changed, 431 insertions(+)
 create mode 100644 sevenkeys/logic/filter.go
 create mode 100644 sevenkeys/logic/filter_test.go

diff --git a/sevenkeys/logic/filter.go b/sevenkeys/logic/filter.go
new file mode 100644
index 0000000..e303d69
--- /dev/null
+++ b/sevenkeys/logic/filter.go
@@ -0,0 +1,29 @@
+package logic
+
+import "sevenkeys/database"
+
+func filterPrinting(printing database.CardPrinting, searchCriteria SearchCriteria) bool {
+	if searchCriteria.SetCode != "" && printing.SetCode != searchCriteria.SetCode {
+		return true
+	}
+
+	if searchCriteria.Foil == False && printing.IsFoil {
+		return true
+	}
+	if searchCriteria.Foil == True && !printing.IsFoil {
+		return true
+	}
+
+	if searchCriteria.Promo == False && printing.IsPromo {
+		return true
+	}
+	if searchCriteria.Promo == True && !printing.IsPromo {
+		return true
+	}
+
+	if searchCriteria.Language != "" && printing.Language != searchCriteria.Language {
+		return true
+	}
+
+	return false
+}
diff --git a/sevenkeys/logic/filter_test.go b/sevenkeys/logic/filter_test.go
new file mode 100644
index 0000000..ac47f27
--- /dev/null
+++ b/sevenkeys/logic/filter_test.go
@@ -0,0 +1,402 @@
+package logic
+
+import (
+	"sevenkeys/database"
+	"testing"
+)
+
+func TestFilterPrinting_ReturnsTrue_IfSetCodeDoesNotMatch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "otj",
+		Foil:     False,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != true {
+		t.Errorf("filter was false")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfSetCodeDoesMatch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfSetCodeNotSet(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "",
+		Foil:     False,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsTrue_IfFoilCardInNonFoilSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   true,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != true {
+		t.Errorf("filter was false")
+	}
+}
+
+func TestFilterPrinting_ReturnsTrue_IfNonFoilCardInFoilSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     True,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != true {
+		t.Errorf("filter was false")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfNonFoilCardInNonFoilSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfFoilCardInFoilSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   true,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     True,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfFoilCardInEitherFoilSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   true,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     Either,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfNonFoilCardInEitherFoilSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     Either,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsTrue_IfPromoCardInNonPromoSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  true,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != true {
+		t.Errorf("filter was false")
+	}
+}
+
+func TestFilterPrinting_ReturnsTrue_IfNonPromoCardInPromoSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    True,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != true {
+		t.Errorf("filter was false")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfNonPromoCardInNonPromoSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    False,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfPromoCardInPromoSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  true,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    True,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfPromoCardInEitherPromoSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  true,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    Either,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfNonPromoCardInEitherPromoSearch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    Either,
+		Language: "en",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsTrue_IfLanguageDoesNotMatch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    False,
+		Language: "de",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != true {
+		t.Errorf("filter was false")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfLanguageDoesMatch(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "de",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    False,
+		Language: "de",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}
+
+func TestFilterPrinting_ReturnsFalse_IfLanguageNotSet(t *testing.T) {
+	printing := database.CardPrinting{
+		SetCode:  "rtr",
+		IsFoil:   false,
+		IsPromo:  false,
+		Language: "en",
+	}
+
+	searchCriteria := SearchCriteria{
+		SetCode:  "rtr",
+		Foil:     False,
+		Promo:    False,
+		Language: "",
+	}
+
+	filter := filterPrinting(printing, searchCriteria)
+
+	if filter != false {
+		t.Errorf("filter was true")
+	}
+}