ChWebsiteApp/CHDataManagement/Generator/Page Content/VideoCommandProcessor.swift
2025-01-05 20:16:16 +01:00

80 lines
2.6 KiB
Swift

struct VideoCommandProcessor: CommandProcessor {
let commandType: ShorthandMarkdownKey = .video
let content: Content
let results: PageGenerationResults
init(content: Content, results: PageGenerationResults, language: ContentLanguage) {
self.content = content
self.results = results
}
/**
Format: `![video](<fileId>;<option1...>]`
*/
func process(_ arguments: [String], markdown: Substring) -> String {
guard arguments.count >= 1 else {
results.invalid(command: .video, markdown)
return ""
}
let fileId = arguments[0].trimmed
let options = arguments.dropFirst().compactMap { convertVideoOption($0, markdown: markdown) }
guard let file = content.file(fileId) else {
results.missing(file: fileId, source: "Video command")
return ""
}
#warning("Create/specify video alternatives")
results.require(file: file)
guard let videoType = file.type.htmlType else {
results.invalid(command: .video, markdown)
return ""
}
return ContentPageVideo(
filePath: file.absoluteUrl,
videoType: videoType,
options: options)
.content
}
private func convertVideoOption(_ videoOption: String, markdown: Substring) -> VideoOption? {
guard let optionText = videoOption.trimmed.nonEmpty else {
return nil
}
guard let option = VideoOption(rawValue: optionText) else {
results.invalid(command: .video, markdown)
return nil
}
switch option {
case .poster(let imageId):
if let image = content.image(imageId) {
let width = 2 * content.settings.pages.contentWidth
let version = image.imageVersion(width: width, height: width, type: .jpg)
results.require(image: version)
return .poster(image: version.outputPath)
} else {
results.missing(file: imageId, source: "Video command poster")
return nil // Image file not present, so skip the option
}
case .src(let videoId):
if let video = content.video(videoId) {
results.used(file: video)
let link = video.absoluteUrl
return .src(link)
} else {
results.missing(file: videoId, source: "Video command source")
return nil // Video file not present, so skip the option
}
default:
return option
}
}
}