Create thumbnails on server
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cc7a3ec567
commit
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@ -6,6 +6,8 @@ final class CapServer {
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private let imageSize = 360
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private let thumbnailSize = 100
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// MARK: Paths
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private let imageFolder: URL
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@ -36,6 +38,8 @@ final class CapServer {
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/// Indicates that the data is loaded
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private(set) var isOperational = false
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private(set) var canResizeImages = false
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// MARK: Caps
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@ -117,7 +121,12 @@ final class CapServer {
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updateGridCapCount()
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try ensureExistenceOfChangedImagesFile()
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organizeImages()
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shrinkImages()
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if let version = getMagickVersion() {
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log("Using ImageMagick \(version.rawValue)")
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canResizeImages = true
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}
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// shrinkImages()
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createMissingThumbnails()
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isOperational = true
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}
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@ -363,6 +372,10 @@ final class CapServer {
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let count = try count(of: cap)
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caps[cap]!.count = count
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addChangedImageToLog(cap: cap, image: id)
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if canResizeImages {
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shrink(imageAt: capImageUrl, size: imageSize, destination: capImageUrl)
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createThumbnail(for: cap)
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}
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log("Added image \(id) for cap \(cap) (\(count) total)")
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}
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@ -453,6 +466,9 @@ final class CapServer {
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throw CapError.invalidFile
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}
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caps[cap]?.mainImage = version
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if canResizeImages {
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createThumbnail(for: cap)
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}
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log("Switched cap \(cap) to version \(version)")
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}
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@ -607,6 +623,30 @@ final class CapServer {
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}
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}
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func createMissingThumbnails() {
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let thumbnailsToCreate = getListOfMissingThumbnails()
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guard !thumbnailsToCreate.isEmpty else {
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return
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}
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guard canResizeImages else {
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log("Can't create thumbnails, missing ImageMagick")
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return
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}
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log("Creating \(thumbnailsToCreate.count) thumbnails")
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for cap in thumbnailsToCreate {
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createThumbnail(for: cap)
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}
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}
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func createThumbnail(for cap: Int) {
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guard let version = caps[cap]?.mainImage else {
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return
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}
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let mainImageUrl = imageUrl(of: cap, version: version)
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let thumbnailUrl = thumbnail(of: cap)
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shrink(imageAt: mainImageUrl, size: thumbnailSize, destination: thumbnailUrl)
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}
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// MARK: Monitoring
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private let capCountMetric: Metric<Int>
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@ -645,12 +685,10 @@ final class CapServer {
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}
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func shrinkImages() {
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guard let version = getMagickVersion() else {
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log("Failed to shrink images, missing dependency")
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guard canResizeImages else {
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log("Can't resize images, missing ImageMagick")
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return
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}
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log("Shrinking images using ImageMagick \(version.rawValue)")
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let imageFolders: [URL]
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do {
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imageFolders = try fm.contentsOfDirectory(at: imageFolder, includingPropertiesForKeys: nil)
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@ -663,20 +701,20 @@ final class CapServer {
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continue
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}
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for imageUrl in images {
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shrink(imageAt: imageUrl)
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shrink(imageAt: imageUrl, size: imageSize, destination: imageUrl)
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}
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}
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}
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private func shrink(imageAt url: URL) {
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private func shrink(imageAt url: URL, size: Int, destination: URL) {
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do {
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let command = "convert \(url.path) -resize '\(imageSize)x\(imageSize)>' \(url.path)"
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let command = "convert \(url.path) -resize '\(size)x\(size)>' \(destination.path)"
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let (code, output) = try safeShell(command)
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if code != 0 {
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print("Failed to shrink image: " + output)
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log("Failed to shrink image \(url.path): " + output)
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}
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} catch {
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print("Failed to shrink image: \(error)")
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log("Failed to shrink image \(url.path): \(error)")
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}
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}
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@ -47,7 +47,11 @@ public func configure(_ app: Application) async throws {
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} catch {
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try await status.update(.initializationFailure)
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}
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try await status.update(.nominal)
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if server.canResizeImages {
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try await status.update(.nominal)
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} else {
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try await status.update(.reducedFunctionality)
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}
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}
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func log(_ message: String) {
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