From 32a3183a1c4423541344f25a30acebab5ded26ae Mon Sep 17 00:00:00 2001
From: Charles Iliya Krempeaux <iamreiver@gmail.com>
Date: Tue, 26 Sep 2023 17:49:01 +0900
Subject: [PATCH] initial commits

---
 ent/application.go | 67 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 ent/application.go

diff --git a/ent/application.go b/ent/application.go
new file mode 100644
index 0000000..c1346dd
--- /dev/null
+++ b/ent/application.go
@@ -0,0 +1,67 @@
+package ent
+
+import (
+	"encoding/json"
+
+	"sourcecode.social/reiver/go-erorr"
+	"sourcecode.social/reiver/go-opt"
+	"sourcecode.social/reiver/go-nul"
+)
+
+var _ json.Marshaler = Application{}
+
+const (
+	errCannotMashalApplicationAsJSONNoName     = erorr.Error("cannot marshal ent.Application to JSON — no ‘name’ set")
+	errCannotMashalApplicationAsJSONNoVapidKey = erorr.Error("cannot marshal ent.Application to JSON — no ‘vapid_key’ set")
+)
+
+// Appication represents a Mastodon API "Appication".
+//
+// See:
+// https://docs.joinmastodon.org/entities/Application/
+type Application struct {
+	Name         opt.Optional[string] `json:"name"`
+	WebSite      nul.Nullable[string] `json:"website"`
+	VapidKey     opt.Optional[string] `json:"vapid_key"`
+	ClientID     opt.Optional[string] `json:"client_id"`
+	ClientSecret opt.Optional[string] `json:"client_secret"`
+}
+
+func (receiver Application) MarshalJSON() ([]byte, error) {
+	var data map[string]interface{}
+
+	{
+		val, found := receiver.Name.Get()
+		if !found {
+			return nil, errCannotMashalApplicationAsJSONNoName
+		}
+
+		data["name"] = val
+	}
+
+	receiver.WebSite.WhenSomething(func(value string){
+		data["website"] = value
+	})
+	receiver.WebSite.WhenNull(func(){
+		data["website"] = nil
+	})
+
+	{
+		val, found := receiver.VapidKey.Get()
+		if !found {
+			return nil, errCannotMashalApplicationAsJSONNoVapidKey
+		}
+
+		data["vapid_key"] = val
+	}
+
+	receiver.ClientID.WhenSomething(func(value string){
+		data["client_id"] = value
+	})
+
+	receiver.ClientSecret.WhenSomething(func(value string){
+		data["client_secret"] = value
+	})
+
+	return json.Marshal(data)
+}