use crate::{
	library::LibraryConfig,
	prisma::statistics,
	volume::{get_volumes, save_volume},
};

use super::{utils::LibraryRequest, RouterBuilder};
use chrono::Utc;
use fs_extra::dir::get_size; // TODO: Remove this dependency as it is sync instead of async
use rspc::Type;
use sd_crypto::{
	crypto::stream::Algorithm, keys::hashing::HashingAlgorithm,
	primitives::types::OnboardingConfig, Protected,
};
use serde::Deserialize;
use tokio::fs;
use uuid::Uuid;

pub(crate) fn mount() -> RouterBuilder {
	<RouterBuilder>::new()
		.query("list", |t| {
			t(|ctx, _: ()| async move { ctx.library_manager.get_all_libraries_config().await })
		})
		.library_query("getStatistics", |t| {
			t(|_, _: (), library| async move {
				let _statistics = library
					.db
					.statistics()
					.find_unique(statistics::id::equals(library.node_local_id))
					.exec()
					.await?;

				// TODO: get from database, not sys
				let volumes = get_volumes();
				save_volume(&library).await?;

				let mut available_capacity: u64 = 0;
				let mut total_capacity: u64 = 0;
				if volumes.is_ok() {
					for volume in volumes? {
						total_capacity += volume.total_capacity;
						available_capacity += volume.available_capacity;
					}
				}

				let library_db_size = match fs::metadata(library.config().data_directory()).await {
					Ok(metadata) => metadata.len(),
					Err(_) => 0,
				};

				let thumbnail_folder_size =
					get_size(library.config().data_directory().join("thumbnails"));

				use statistics::*;
				let params = vec![
					id::set(1), // Each library is a database so only one of these ever exists
					date_captured::set(Utc::now().into()),
					total_object_count::set(0),
					library_db_size::set(library_db_size.to_string()),
					total_bytes_used::set(0.to_string()),
					total_bytes_capacity::set(total_capacity.to_string()),
					total_unique_bytes::set(0.to_string()),
					total_bytes_free::set(available_capacity.to_string()),
					preview_media_bytes::set(thumbnail_folder_size.unwrap_or(0).to_string()),
				];

				Ok(library
					.db
					.statistics()
					.upsert(
						statistics::id::equals(1), // Each library is a database so only one of these ever exists
						params.clone(),
						params,
					)
					.exec()
					.await?)
			})
		})
		.mutation("create", |t| {
			#[derive(Deserialize, Type)]
			pub struct CreateLibraryArgs {
				name: String,
				password: Protected<String>,
				algorithm: Algorithm,
				hashing_algorithm: HashingAlgorithm,
			}

			t(|ctx, args: CreateLibraryArgs| async move {
				Ok(ctx
					.library_manager
					.create(
						LibraryConfig {
							name: args.name.to_string(),
							..Default::default()
						},
						OnboardingConfig {
							password: args.password,
							algorithm: args.algorithm,
							hashing_algorithm: args.hashing_algorithm,
						},
					)
					.await?)
			})
		})
		.mutation("edit", |t| {
			#[derive(Type, Deserialize)]
			pub struct EditLibraryArgs {
				pub id: Uuid,
				pub name: Option<String>,
				pub description: Option<String>,
			}

			t(|ctx, args: EditLibraryArgs| async move {
				Ok(ctx
					.library_manager
					.edit(args.id, args.name, args.description)
					.await?)
			})
		})
		.mutation("delete", |t| {
			t(|ctx, id: Uuid| async move { Ok(ctx.library_manager.delete_library(id).await?) })
		})
}