//
//  NextcloudDataInterface.swift
//  Nextcloud Cookbook iOS Client
//
//  Created by Vincent Meilinger on 07.05.24.
//

import Foundation
import SwiftUI


class NextcloudDataInterface: CookbookInterface {
    var id: String
    
    var auth: Authentication
    var api: CookbookApi.Type
    
    init(auth: Authentication, version: String) {
        self.id = UUID().uuidString
        self.auth = auth
        switch version {
        case "1.0":
            self.api = CookbookApiV1.self
        default:
            self.api = CookbookApiV1.self
        }
    }
}


// MARK: - Nextcloud Read Interface
extension NextcloudDataInterface: ReadInterface {
    
    func getImage(id: String, size: RecipeImage.RecipeImageSize) async -> (UIImage?, UserAlert?) {
        let (image, error) = await api.getImage(auth: auth.token, id: id, size: size)
        if let image {
            return (image, nil)
        }
        return (nil, error)
    }
    
    func getRecipeStubs() async -> ([RecipeStub]?, UserAlert?) {
        return await api.getRecipes(auth: auth.token)
    }
    
    func getRecipe(id: String) async -> (Recipe?, UserAlert?) {
        return await api.getRecipe(auth: auth.token, id: id)
    }
    
    func getCategories() async -> ([Category]?, UserAlert?) {
        return await api.getCategories(auth: auth.token)
    }
    
    func getRecipeStubsForCategory(named categoryName: String) async -> ([RecipeStub]?, UserAlert?) {
        return await api.getCategory(
            auth: UserSettings.shared.authString,
            named: categoryName
        )
    }
    
    func getTags() async -> ([RecipeKeyword]?, (any UserAlert)?) {
        return await api.getTags(auth: auth.token)
    }
    
    func getRecipesTagged(keyword: String) async -> ([RecipeStub]?, UserAlert?) {
        return await api.getRecipesTagged(auth: auth.token, keyword: keyword)
    }
    
}


// MARK: - Nextcloud Write Interface
extension NextcloudDataInterface: WriteInterface {
    
    func postImage(id: String, image: UIImage, size: RecipeImage.RecipeImageSize) async -> ((any UserAlert)?) {
        return nil
    }
    
    func postRecipe(recipe: Recipe) async -> (UserAlert?) {
        return await api.createRecipe(auth: auth.token, recipe: recipe)
    }
    
    func updateRecipe(recipe: Recipe) async -> (UserAlert?) {
        return await api.updateRecipe(auth: auth.token, recipe: recipe)
    }
    
    func deleteRecipe(id: String) async -> (UserAlert?) {
        return await api.deleteRecipe(auth: auth.token, id: id)
    }
    
    func renameCategory(named categoryName: String, newName: String) async -> (UserAlert?) {
        return await api.renameCategory(auth: auth.token, named: categoryName, newName: newName)
    }
    
}