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Simpler api endpoints are now integrated into the MainViewModel

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Vicnet
2023-11-16 17:53:30 +01:00
parent 3563c23e29
commit 23e1a665df
13 changed files with 284 additions and 74 deletions
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224
Nextcloud Cookbook iOS Client/ViewModels/MainViewModel.swift
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@@ -11,33 +11,30 @@ import UIKit
@MainActor class MainViewModel: ObservableObject {
@AppStorage("authString") var authString = ""
@AppStorage("serverAddress") var serverAdress = ""
let api: CookbookApi.Type
@Published var categories: [Category] = []
@Published var recipes: [String: [Recipe]] = [:]
private var recipeDetails: [Int: RecipeDetail] = [:]
@Published var recipeDetails: [Int: RecipeDetail] = [:]
private var imageCache: [Int: RecipeImage] = [:]
private var requestQueue: [RequestWrapper] = []
private var serverConnection: Bool = false
let dataStore: DataStore
var apiController: APIController? = nil
/// The path of an image in storage
private var localImagePath: (Int, Bool) -> (String) = { recipeId, thumb in
return "image\(recipeId)_\(thumb ? "thumb" : "full")"
}
/// The path of an image on the server
private var networkImagePath: (Int, Bool) -> (String) = { recipeId, thumb in
return "recipes/\(recipeId)/image?size=\(thumb ? "thumb" : "full")"
}
init() {
init(apiVersion api: CookbookApi.Type = CookbookApiV1.self) {
print("Created MainViewModel")
self.api = api
self.dataStore = DataStore()
}
/// Try to load the category list from store or the server.
/// - Parameters
/// - needsUpdate: If true, the recipe will be loaded from the server directly, otherwise it will be loaded from store first.
func loadCategoryList(needsUpdate: Bool = false) async {
/*func loadCategoryList(needsUpdate: Bool = false) async {
if let categoryList: [Category] = await loadObject(
localPath: "categories.data",
networkPath: .CATEGORIES,
@@ -46,6 +43,23 @@ import UIKit
self.categories = categoryList
}
print(self.categories)
}*/
func loadCategories() async {
let (categories, _) = await api.getCategories(
from: serverAdress,
auth: authString
)
if let categories = categories {
self.categories = categories
await saveLocal(categories, path: "categories.data")
serverConnection = true
} else {
if let categories: [Category] = await loadLocal(path: "categories.data") {
self.categories = categories
}
serverConnection = false
}
}
/// Try to load the recipe list from store or the server.
@@ -53,7 +67,7 @@ import UIKit
/// - Parameters
/// - categoryName: The name of the category containing the requested list of recipes.
/// - needsUpdate: If true, the recipe will be loaded from the server directly, otherwise it will be loaded from store first.
func loadRecipeList(categoryName: String, needsUpdate: Bool = false) async {
/*func loadRecipeList(categoryName: String, needsUpdate: Bool = false) async {
let categoryString = categoryName == "*" ? "_" : categoryName
if let recipeList: [Recipe] = await loadObject(
localPath: "category_\(categoryString).data",
@@ -64,9 +78,24 @@ import UIKit
print(recipeList)
}
}*/
func getCategory(named name: String) async {
let categoryString = name == "*" ? "_" : name
let (recipes, _) = await api.getCategory(
from: serverAdress,
auth: authString,
named: name
)
if let recipes = recipes {
self.recipes[name] = recipes
} else {
if let recipes: [Recipe] = await loadLocal(path: "category_\(categoryString).data") {
self.recipes[name] = recipes
}
}
}
func getAllRecipes() async -> [Recipe] {
/*func getAllRecipes() async -> [Recipe] {
var allRecipes: [Recipe] = []
for category in categories {
await loadRecipeList(categoryName: category.name)
@@ -77,6 +106,26 @@ import UIKit
return allRecipes.sorted(by: {
$0.name < $1.name
})
}*/
func getRecipes() async -> [Recipe] {
let (recipes, error) = await api.getRecipes(
from: serverAdress,
auth: authString
)
if let recipes = recipes {
return recipes
} else if let error = error {
print(error)
}
var allRecipes: [Recipe] = []
for category in categories {
if let recipeArray = self.recipes[category.name] {
allRecipes.append(contentsOf: recipeArray)
}
}
return allRecipes.sorted(by: {
$0.name < $1.name
})
}
/// Try to load the recipe details from cache. If not found, try to load from store or the server.
@@ -84,7 +133,7 @@ import UIKit
/// - recipeId: The id of the recipe.
/// - needsUpdate: If true, the recipe will be loaded from the server directly, otherwise it will be loaded from cache/store first.
/// - Returns: RecipeDetail struct. If not found locally, and unable to load from server, a RecipeDetail struct containing an error message.
func loadRecipeDetail(recipeId: Int, needsUpdate: Bool = false) async -> RecipeDetail {
/*func loadRecipeDetail(recipeId: Int, needsUpdate: Bool = false) async -> RecipeDetail {
if !needsUpdate {
if let recipeDetail = recipeDetails[recipeId] {
return recipeDetail
@@ -99,19 +148,46 @@ import UIKit
return recipeDetail
}
return RecipeDetail.error
}*/
func getRecipe(id: Int) async -> RecipeDetail {
let (recipe, error) = await api.getRecipe(
from: serverAdress,
auth: authString,
id: id
)
if let recipe = recipe {
return recipe
} else if let error = error {
print(error)
}
guard let recipe: RecipeDetail = await loadLocal(path: "recipe\(id).data") else {
return RecipeDetail.error
}
return recipe
}
func downloadAllRecipes() async {
for category in categories {
await loadRecipeList(categoryName: category.name, needsUpdate: true)
await getCategory(named: category.name)
guard let recipeList = recipes[category.name] else { continue }
for recipe in recipeList {
let _ = await loadRecipeDetail(recipeId: recipe.recipe_id, needsUpdate: true)
let _ = await loadImage(recipeId: recipe.recipe_id, thumb: true)
let recipeDetail = await getRecipe(id: recipe.recipe_id)
await saveLocal(recipeDetail, path: "recipe\(recipe.recipe_id).data")
let thumbnail = await getImage(id: recipe.recipe_id, size: .THUMB, needsUpdate: true)
guard let thumbnail = thumbnail else { continue }
guard let thumbnailData = thumbnail.pngData() else { continue }
await saveLocal(thumbnailData.base64EncodedString(), path: "image\(recipe.recipe_id)_thumb")
let image = await getImage(id: recipe.recipe_id, size: .FULL, needsUpdate: true)
guard let image = image else { continue }
guard let imageData = image.pngData() else { continue }
await saveLocal(imageData.base64EncodedString(), path: "image\(recipe.recipe_id)_full")
}
}
}
/// Check if recipeDetail is stored locally, either in cache or on disk
/// - Parameters
/// - recipeId: The id of a recipe.
@@ -132,7 +208,7 @@ import UIKit
/// - full: If true, load the full resolution image. Otherwise, load a thumbnail-sized image.
/// - needsUpdate: Determines wether the image should be loaded directly from the server, or if it should be loaded from cache/store first.
/// - Returns: The image if found locally or on the server, otherwise nil.
func loadImage(recipeId: Int, thumb: Bool, needsUpdate: Bool = false) async -> UIImage? {
/*func loadImage(recipeId: Int, thumb: Bool, needsUpdate: Bool = false) async -> UIImage? {
print("loadImage(recipeId: \(recipeId), thumb: \(thumb), needsUpdate: \(needsUpdate))")
// If the image needs an update, request it from the server and overwrite the stored image
if needsUpdate {
@@ -151,6 +227,9 @@ import UIKit
}
}
// Check imageExists flag to detect if we attempted to load a non-existing image before.
// This allows us to avoid sending requests to the server if we already know the recipe has no image.
if imageCache[recipeId] != nil {
@@ -188,9 +267,22 @@ import UIKit
}
imageCache[recipeId] = RecipeImage(imageExists: false)
return nil
}*/
func getImage(id: Int, size: RecipeImage.RecipeImageSize, needsUpdate: Bool) async -> UIImage? {
if !needsUpdate, let image = await imageFromStore(id: id, size: size) {
return image
}
let (image, _) = await api.getImage(
from: serverAdress,
auth: authString,
id: id,
size: size
)
if let image = image { return image }
return await imageFromStore(id: id, size: size)
}
func getKeywords() async -> [String] {
/*func getKeywords() async -> [String] {
if let keywords: [RecipeKeyword] = await self.loadObject(
localPath: "keywords.data",
networkPath: .KEYWORDS,
@@ -199,6 +291,21 @@ import UIKit
return keywords.map { $0.name }
}
return []
}*/
func getKeywords() async -> [String] {
let (tags, error) = await api.getTags(
from: serverAdress,
auth: authString
)
if let tags = tags {
return tags
} else if let error = error {
print(error)
}
if let keywords: [String] = await loadLocal(path: "keywords.data") {
return keywords
}
return []
}
func deleteAllData() {
@@ -211,7 +318,7 @@ import UIKit
}
}
func deleteRecipe(withId id: Int, categoryName: String) async -> RequestAlert {
/*func deleteRecipe(withId id: Int, categoryName: String) async -> RequestAlert {
let request = RequestWrapper.customRequest(
method: .DELETE,
path: .RECIPE_DETAIL(recipeId: id),
@@ -235,9 +342,29 @@ import UIKit
requestQueue.append(request)
return .REQUEST_DELAYED
}
}*/
func deleteRecipe(withId id: Int, categoryName: String) async -> RequestAlert {
let (error) = await api.deleteRecipe(
from: serverAdress,
auth: authString,
id: id
)
if let error = error {
return .REQUEST_DROPPED
}
let path = "recipe\(id).data"
dataStore.delete(path: path)
if recipes[categoryName] != nil {
recipes[categoryName]!.removeAll(where: { recipe in
recipe.recipe_id == id ? true : false
})
recipeDetails.removeValue(forKey: id)
}
return .REQUEST_SUCCESS
}
func checkServerConnection() async -> Bool {
/*func checkServerConnection() async -> Bool {
guard let apiController = apiController else { return false }
let req = RequestWrapper.customRequest(
method: .GET,
@@ -251,9 +378,21 @@ import UIKit
return false
}
return true
}*/
func checkServerConnection() async -> Bool {
let (categories, _) = await api.getCategories(
from: serverAdress,
auth: authString
)
if let categories = categories {
self.categories = categories
await saveLocal(categories, path: "categories.data")
return true
}
return false
}
func uploadRecipe(recipeDetail: RecipeDetail, createNew: Bool) async -> RequestAlert {
/*func uploadRecipe(recipeDetail: RecipeDetail, createNew: Bool) async -> RequestAlert {
var path: RequestPath? = nil
if createNew {
path = .NEW_RECIPE
@@ -280,9 +419,21 @@ import UIKit
requestQueue.append(request)
return .REQUEST_DELAYED
}
}*/
func uploadRecipe(recipeDetail: RecipeDetail, createNew: Bool) async -> RequestAlert {
let error = await api.createRecipe(
from: serverAdress,
auth: authString,
recipe: recipeDetail
)
if let error = error {
return .REQUEST_DROPPED
}
return .REQUEST_SUCCESS
}
func sendRequest(_ request: RequestWrapper) async -> Bool {
/*func sendRequest(_ request: RequestWrapper) async -> Bool {
guard let apiController = apiController else { return false }
let (data, _): (Data?, Error?) = await apiController.sendDataRequest(request)
guard let data = data else { return false }
@@ -299,14 +450,27 @@ import UIKit
print("Could not decode server response")
}
return false
}
}*/
}
extension MainViewModel {
private func loadObject<T: Codable>(localPath: String, networkPath: RequestPath, needsUpdate: Bool = false) async -> T? {
func loadLocal<T: Codable>(path: String) async -> T? {
do {
return try await dataStore.load(fromPath: path)
} catch (let error) {
print(error)
return nil
}
}
func saveLocal<T: Codable>(_ object: T, path: String) async {
guard let data = JSONEncoder.safeEncode(object) else { return }
await dataStore.save(data: data, toPath: path)
}
/*private func loadObject<T: Codable>(localPath: String, networkPath: RequestPath, needsUpdate: Bool = false) async -> T? {
do {
if !needsUpdate, let data: T = try await dataStore.load(fromPath: localPath) {
print("Data found locally.")
@@ -350,10 +514,10 @@ extension MainViewModel {
}
return nil
}
private func imageFromStore(recipeId: Int, thumb: Bool) async -> UIImage? {
*/
private func imageFromStore(id: Int, size: RecipeImage.RecipeImageSize) async -> UIImage? {
do {
let localPath = localImagePath(recipeId, thumb)
let localPath = "image\(id)_\(size == .FULL ? "full" : "thumb")"
if let data: String = try await dataStore.load(fromPath: localPath) {
guard let dataDecoded = Data(base64Encoded: data) else { return nil }
let image = UIImage(data: dataDecoded)