use sea_orm::entity::prelude::*;
use crate::activitypub::jsonld::LD;
use crate::activitystream::key::{PublicKey as _, PublicKeyMut as _};
use crate::activitystream::object::actor::ActorMut as _;
use crate::activitystream::object::document::{DocumentMut as _, DocumentType};

use crate::activitystream::object::ObjectMut as _;
use crate::activitystream::{BaseMut as _, Object as _};
use crate::{activitypub, activitystream::{object::actor::ActorType, BaseType, Node, ObjectType}};

#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
#[sea_orm(table_name = "users")]
pub struct Model {
	#[sea_orm(primary_key)]
	/// must be full AP ID, since they are unique over the network
	pub id: String,
	pub domain: String,
	pub actor_type: ActorType,
	pub preferred_username: String,

	pub name: Option<String>,
	pub summary: Option<String>,
	pub image: Option<String>,
	pub icon: Option<String>,

	pub inbox: Option<String>,
	pub shared_inbox: Option<String>,
	pub outbox: Option<String>,
	pub following: Option<String>,
	pub followers: Option<String>,

	pub public_key: String,
	pub private_key: Option<String>,

	pub created: ChronoDateTimeUtc,
	pub updated: ChronoDateTimeUtc,
	
	// TODO these are also suggested
	// pub liked: Option<String>,
	// pub streams: Option<String>,
}

use crate::activitystream::object::{actor::Actor, collection::Collection, document::Image};

#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
pub enum Relation {
	#[sea_orm(has_many = "super::activity::Entity")]
	Activity,

	#[sea_orm(has_many = "super::object::Entity")]
	Object,

	#[sea_orm(has_one = "super::config::Entity")]
	Config,

	#[sea_orm(has_one = "super::credential::Entity")]
	Credential,
}

impl Related<super::activity::Entity> for Entity {
	fn to() -> RelationDef {
		Relation::Activity.def()
	}
}

impl Related<super::object::Entity> for Entity {
	fn to() -> RelationDef {
		Relation::Object.def()
	}
}

impl Related<super::config::Entity> for Entity {
	fn to() -> RelationDef {
		Relation::Config.def()
	}
}

impl Related<super::credential::Entity> for Entity {
	fn to() -> RelationDef {
		Relation::Credential.def()
	}
}

impl ActiveModelBehavior for ActiveModel {}

// impl crate::activitystream::Base for Model {
// 	fn id(&self) -> Option<&str> {
// 		Some(&self.id)
// 	}
// 
// 	fn base_type(&self) -> Option<BaseType> {
// 		Some(BaseType::Object(ObjectType::Actor(self.actor_type)))
// 	}
// 
// 	fn underlying_json_object(self) -> serde_json::Value {
// 		serde_json::Value::new_object()
// 			.set_id(Some(&self.id))
// 			.set_actor_type(Some(self.actor_type))
// 			.set_name(self.name.as_deref())
// 			.set_summary(self.summary.as_deref())
// 			.set_icon(self.icon())
// 			.set_image(self.image())
// 			.set_published(Some(self.created))
// 			.set_preferred_username(Some(&self.preferred_username))
// 			.set_inbox(self.inbox())
// 			.set_outbox(self.outbox())
// 			.set_following(self.following())
// 			.set_followers(self.followers())
// 			.set_public_key(self.public_key())
// 			.set_discoverable(Some(true))
// 			.set_endpoints(None) // TODO dirty fix to put an empty object
// 	}
// }
// 
// impl crate::activitystream::object::Object for Model {
// 	fn name(&self) -> Option<&str> {
// 		self.name.as_deref()
// 	}
// 
// 	fn summary(&self) -> Option<&str> {
// 		self.summary.as_deref()
// 	}
// 
// 	fn icon(&self) -> Node<impl Image> {
// 		match &self.icon {
// 			Some(x) => Node::object(
// 				serde_json::Value::new_object()
// 					.set_document_type(Some(DocumentType::Image))
// 					.set_url(Node::link(x.clone()))
// 			),
// 			None => Node::Empty,
// 		}
// 	}
// 
// 	fn image(&self) -> Node<impl Image> {
// 		match &self.image {
// 			Some(x) => Node::object(
// 				serde_json::Value::new_object()
// 					.set_document_type(Some(DocumentType::Image))
// 					.set_url(Node::link(x.clone()))
// 			),
// 			None => Node::Empty,
// 		}
// 	}
// 
// 	fn published(&self) -> Option<chrono::DateTime<chrono::Utc>> {
// 		Some(self.created)
// 	}
// }
// 
// impl crate::activitystream::object::actor::Actor for Model {
// 	fn actor_type(&self) -> Option<ActorType> {
// 		Some(self.actor_type)
// 	}
// 
// 	fn preferred_username(&self) -> Option<&str> {
// 		Some(&self.preferred_username)
// 	}
// 
// 	fn inbox(&self) -> Node<impl Collection> {
// 		Node::link(self.inbox.clone().unwrap_or(format!("https://{}/users/{}/inbox", self.domain, self.preferred_username)))
// 	}
// 
// 	fn outbox(&self) -> Node<impl Collection> {
// 		Node::link(self.outbox.clone().unwrap_or(format!("https://{}/users/{}/outbox", self.domain, self.preferred_username)))
// 	}
// 
// 	fn following(&self) -> Node<impl Collection> {
// 		Node::link(self.following.clone().unwrap_or(format!("https://{}/users/{}/following", self.domain, self.preferred_username)))
// 	}
// 
// 	fn followers(&self) -> Node<impl Collection> {
// 		Node::link(self.following.clone().unwrap_or(format!("https://{}/users/{}/followers", self.domain, self.preferred_username)))
// 	}
// 
// 	fn public_key(&self) -> Node<impl crate::activitystream::key::PublicKey> {
// 		Node::object(
// 			serde_json::Value::new_object()
// 				.set_id(Some(&format!("{}#main-key", self.id))) // TODO is this some standard??
// 				.set_public_key_pem(&self.public_key)
// 				.set_owner(Some(&self.id))
// 		)
// 	}
// }

impl Model {
	pub fn new(object: &impl Actor) -> Result<Self, super::FieldError> {
		let ap_id = object.id().ok_or(super::FieldError("id"))?.to_string();
		let (domain, preferred_username) = activitypub::split_id(&ap_id);
		Ok(Model {
			id: ap_id, preferred_username, domain,
			actor_type: object.actor_type().ok_or(super::FieldError("type"))?,
			name: object.name().map(|x| x.to_string()),
			summary: object.summary().map(|x| x.to_string()),
			icon: object.icon().id().map(|x| x.to_string()),
			image: object.image().id().map(|x| x.to_string()),
			inbox: object.inbox().id().map(|x| x.to_string()),
			outbox: object.inbox().id().map(|x| x.to_string()),
			shared_inbox: None, // TODO!!! parse endpoints
			followers: object.followers().id().map(|x| x.to_string()),
			following: object.following().id().map(|x| x.to_string()),
			created: object.published().unwrap_or(chrono::Utc::now()),
			updated: chrono::Utc::now(),
			public_key: object.public_key().get().ok_or(super::FieldError("publicKey"))?.public_key_pem().to_string(),
			private_key: None, // there's no way to transport privkey over AP json, must come from DB
		})
	}
}