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BuildIndexView.swift
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//
// BuildIndexView.swift
// Queryable
//
// Created by Ke Fang on 2022/12/16.
//
import SwiftUI
struct BuildIndexView: View {
@Environment(\.colorScheme) var colorScheme
@ObservedObject var photoSearcher: PhotoSearcher
var body: some View {
switch photoSearcher.buildIndexCode {
case BUILD_INDEX_CODE.DEFAULT.rawValue:
Text("")
case BUILD_INDEX_CODE.LOADING_PHOTOS.rawValue:
ProgressView() {
Text("Loading Photos...")
}
case BUILD_INDEX_CODE.PHOTOS_LOADED.rawValue:
StartBuildView(photoSearcher: photoSearcher)
case BUILD_INDEX_CODE.LOADING_MODEL.rawValue:
ProgressView() {
Text("Loading Model...")
}
.onAppear {
Task {
await photoSearcher.loadImageIncoder()
}
}
case BUILD_INDEX_CODE.IS_BUILDING_INDEX.rawValue:
BuildingIndexView(photoSearcher: photoSearcher)
.onAppear {
Task {
UIApplication.shared.isIdleTimerDisabled = true
await photoSearcher.buildIndex()
UIApplication.shared.isIdleTimerDisabled = false
}
}
case BUILD_INDEX_CODE.BUILD_FINISHED.rawValue:
BuildFinishView(photoSearcher: photoSearcher)
default:
Text("")
}
}
}
struct StartBuildView: View {
@Environment(\.colorScheme) var colorScheme
@ObservedObject var photoSearcher: PhotoSearcher
var isDarkMode: Bool {
return colorScheme == .dark
}
var body: some View {
VStack {
let start = "Total"
let end = "Photos need to be indexed."
Text("\(NSLocalizedString(start, comment: "")) \(photoSearcher.totalUnIndexedPhotosNum) \(NSLocalizedString(end, comment: ""))")
// Prevent Low Power Mode to avoid crash.
if ProcessInfo.processInfo.isLowPowerModeEnabled && photoSearcher.totalUnIndexedPhotosNum > 300 {
// Low Power Mode is enabled. Start reducing activity to conserve energy.
Text("* Please turn off Low Power Mode when build index.")
.foregroundColor(.red)
.scaledToFit()
.minimumScaleFactor(0.5)
.lineLimit(1)
} else {
// Low Power Mode is not enabled.
}
HStack {
Text("Index Photos")
.font(.title)
.padding()
.frame(minWidth: 200)
.foregroundColor(isDarkMode ? .black : .white)
.background(isDarkMode ? .white : .black)
.cornerRadius(40)
}
.accessibilityHint("Press button to build index for all your photos, this may takes a few minutes, depending on the number of your unindexed photos")
.onTapGesture {
if photoSearcher.totalUnIndexedPhotosNum > 0 {
photoSearcher.changeState(from: BUILD_INDEX_CODE.PHOTOS_LOADED.rawValue, to: BUILD_INDEX_CODE.LOADING_MODEL.rawValue)
} else {
photoSearcher.changeState(from: BUILD_INDEX_CODE.PHOTOS_LOADED.rawValue, to: BUILD_INDEX_CODE.BUILD_FINISHED.rawValue)
}
}
}
}
}
struct BuildingIndexView: View {
@ObservedObject var photoSearcher: PhotoSearcher
var body: some View {
VStack {
Image(uiImage: photoSearcher.curShowingPhoto)
.resizable()
.scaledToFit()
let end = "Photos have been indexed."
Text("\(photoSearcher.curIndexingNums+1)/\(photoSearcher.totalUnIndexedPhotosNum) \(NSLocalizedString(end, comment: ""))")
Text("Task runs entirely locally. Do not operate until completed.")
.foregroundColor(.gray)
.scaledToFit()
.minimumScaleFactor(0.5)
.lineLimit(1)
}
}
}
struct BuildFinishView: View {
@Environment(\.presentationMode) var presentationMode
@Environment(\.colorScheme) var colorScheme
@ObservedObject var photoSearcher: PhotoSearcher
var isDarkMode: Bool {
return colorScheme == .dark
}
var body: some View {
VStack {
Text("Build Finished.")
.accessibilityHint(Text("All photos have been indexed"))
HStack {
Text("Start Search")
.font(.title)
.padding()
.frame(minWidth: 200)
.foregroundColor(isDarkMode ? .black : .white)
.background(isDarkMode ? .white : .black)
.cornerRadius(40)
}
.accessibilityHint(Text("All photos have been indexed, click to search"))
.onTapGesture {
self.presentationMode.wrappedValue.dismiss()
self.photoSearcher.searchResultCode = .MODEL_PREPARED
if !self.photoSearcher.searchString.isEmpty {
Task {
self.photoSearcher.searchResultCode = .IS_SEARCHING
await self.photoSearcher.search(with: self.photoSearcher.searchString)
}
}
}
}
}
}
struct BuildIndexView_Previews: PreviewProvider {
static var previews: some View {
BuildIndexView(photoSearcher: PhotoSearcher())
}
}