06/19 Update inspections/issues sent via email, and duplicated issue photos issues
This commit is contained in:
Nguyen Ngo
@@ -0,0 +1,481 @@
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// Utils/IssuePDFGenerator.swift
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// ------------------------------
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// Generates a PDF issue report mirroring the web app's generate_issue_pdf().
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//
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// Layout (portrait, US Letter 612×792 pt):
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// • Dark header band — title + "Page N"
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// • Severity / status banner
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// • Details grid — contract, facility, area, reporter, assignee,
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// reported/resolved dates, status
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// • Description
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// • Photo Evidence — compact grid, JPEG re-encoded to keep file
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// size minimal (matches web _compress_image)
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// • Resolution Details — notes (no resolution photos on iOS model)
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// • Verification — verifier + date + note
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// • Footer — generation date
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//
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// All photos are re-encoded to JPEG at reduced resolution/quality before
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// embedding, exactly like the web's _compress_image (800px max side, q=55),
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// so attaching several photos doesn't bloat the email attachment.
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import UIKit
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// MARK: - Constants
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private let kW: CGFloat = 612
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private let kH: CGFloat = 792
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private let kM: CGFloat = 46.8
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private let kBodyW: CGFloat = kW - 2 * kM
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private let kHdrH: CGFloat = 79.2
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private let kFtrH: CGFloat = 39.6
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private let kTopY: CGFloat = kHdrH + 14
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private let kBotY: CGFloat = kH - kFtrH
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// Image compression — matches web pdf_export.py _compress_image
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private let kImgMaxPx: CGFloat = 700 // max px on the longer side
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private let kImgJPEGQuality: CGFloat = 0.55
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// MARK: - Colours (same palette as InspectionPDFGenerator)
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private let C_DARK = UIColor(red:0.102, green:0.114, blue:0.137, alpha:1)
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private let C_SLATE = UIColor(red:0.392, green:0.455, blue:0.545, alpha:1)
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private let C_LIGHT = UIColor(red:0.945, green:0.961, blue:0.976, alpha:1)
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private let C_BORDER = UIColor(red:0.886, green:0.906, blue:0.929, alpha:1)
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private let C_GREEN = UIColor(red:0.086, green:0.639, blue:0.290, alpha:1)
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private let C_YELLOW = UIColor(red:0.851, green:0.467, blue:0.024, alpha:1)
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private let C_RED = UIColor(red:0.863, green:0.149, blue:0.149, alpha:1)
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private let C_ORANGE = UIColor(red:0.918, green:0.345, blue:0.047, alpha:1)
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private let C_BLUE = UIColor(red:0.145, green:0.388, blue:0.922, alpha:1)
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private let C_MUTED = UIColor(red:0.580, green:0.647, blue:0.722, alpha:1)
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private let C_GREENBG = UIColor(red:0.941, green:0.992, blue:0.957, alpha:1) // #f0fdf4
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private func severityColor(_ s: String) -> UIColor {
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switch s.lowercased() {
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case "critical", "high": return C_RED
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case "medium": return C_YELLOW
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default: return C_SLATE
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}
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}
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// MARK: - Attributed string helpers (shared style with InspectionPDFGenerator)
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private func A(_ text: String, size: CGFloat, weight: UIFont.Weight = .regular,
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color: UIColor = C_DARK, align: NSTextAlignment = .left) -> NSAttributedString {
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let ps = NSMutableParagraphStyle()
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ps.alignment = align; ps.lineBreakMode = .byTruncatingTail
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return NSAttributedString(string: text, attributes: [
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.font: UIFont.systemFont(ofSize: size, weight: weight),
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.foregroundColor: color, .paragraphStyle: ps,
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])
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}
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private func AM(_ text: String, size: CGFloat, weight: UIFont.Weight = .regular,
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color: UIColor = C_DARK, align: NSTextAlignment = .left) -> NSAttributedString {
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let ps = NSMutableParagraphStyle()
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ps.alignment = align; ps.lineBreakMode = .byWordWrapping
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return NSAttributedString(string: text, attributes: [
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.font: UIFont.systemFont(ofSize: size, weight: weight),
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.foregroundColor: color, .paragraphStyle: ps,
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])
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}
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private func wrappedHeight(_ text: String, size: CGFloat, width: CGFloat) -> CGFloat {
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AM(text, size: size).boundingRect(
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with: CGSize(width: width, height: 2000),
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options: .usesLineFragmentOrigin, context: nil
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).height
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}
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// MARK: - Pagination context
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private final class PDFContext {
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let renderer: UIGraphicsPDFRendererContext
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var y: CGFloat = kTopY
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var page = 1
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private let title: String
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private let generatedAt: String
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init(_ ctx: UIGraphicsPDFRendererContext, title: String, generatedAt: String) {
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self.renderer = ctx; self.title = title; self.generatedAt = generatedAt
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}
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var gc: CGContext { renderer.cgContext }
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var remaining: CGFloat { kBotY - y }
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func need(_ h: CGFloat) {
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guard remaining < h else { return }
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renderer.beginPage(); page += 1; y = kTopY
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drawHeader(gc, title: title, page: page)
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drawFooter(gc, generatedAt: generatedAt)
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}
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func advance(_ h: CGFloat) { y += h }
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}
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// MARK: - Public API
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enum IssuePDFGenerator {
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/// Generate a minimal-size PDF for the given issue, with photo evidence
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/// re-encoded as compressed JPEGs (matches web _compress_image).
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/// Fetches any server-hosted photos over the network — call from a
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/// background Task, not the main-actor hot path.
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static func generate(issue: LocalIssue, facilityName: String) async -> Data {
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let photos = await fetchAndCompressPhotos(issue: issue)
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return render(issue: issue, facilityName: facilityName, photos: photos)
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}
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// ── Photo fetch + compression ───────────────────────────────────────
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// Returns compressed UIImages ready for low-filesize PDF embedding.
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// Local photos are read from disk; server photos are downloaded.
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// Every image is downscaled to kImgMaxPx and re-encoded as JPEG at
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// kImgJPEGQuality before being wrapped back into a UIImage — this is
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// what keeps the final PDF (and thus the email attachment) small even
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// with several photos attached.
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private static func fetchAndCompressPhotos(issue: LocalIssue) async -> [UIImage] {
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// Prefer server paths once synced (matches IssueDetailView's own logic);
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// fall back to local paths while pending/failed.
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let isSynced = issue.syncStatus == "synced"
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let serverPaths = issue.photoServerPaths
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let localPaths = issue.photoLocalPaths
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var raw: [UIImage] = []
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if isSynced && !serverPaths.isEmpty {
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raw = await withTaskGroup(of: UIImage?.self) { group in
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for path in serverPaths {
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group.addTask {
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guard let url = URL(string: "\(ServerConfig.current)/static/\(path)")
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else { return nil }
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do {
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let (data, _) = try await URLSession.shared.data(from: url)
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return UIImage(data: data)
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} catch { return nil }
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}
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}
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var results: [UIImage] = []
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for await img in group { if let img { results.append(img) } }
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return results
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}
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} else if !localPaths.isEmpty {
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raw = localPaths.compactMap { UIImage(contentsOfFile: $0) }
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}
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return raw.compactMap { compress($0) }
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}
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/// Downscale to kImgMaxPx on the longer side and re-encode as JPEG at
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/// kImgJPEGQuality, returning a fresh UIImage built from the compressed
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/// bytes. This mirrors the web's _compress_image and is the main lever
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/// for keeping the PDF attachment small.
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private static func compress(_ image: UIImage) -> UIImage? {
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let size = image.size
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guard size.width > 0, size.height > 0 else { return nil }
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let scale = min(kImgMaxPx / size.width, kImgMaxPx / size.height, 1.0)
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let newSize = CGSize(width: size.width * scale, height: size.height * scale)
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let renderer = UIGraphicsImageRenderer(size: newSize)
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let resized = renderer.image { _ in
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image.draw(in: CGRect(origin: .zero, size: newSize))
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}
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guard let jpegData = resized.jpegData(compressionQuality: kImgJPEGQuality) else {
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return resized
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}
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return UIImage(data: jpegData) ?? resized
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}
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// ── Synchronous rendering ───────────────────────────────────────────
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private static func render(issue: LocalIssue, facilityName: String,
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photos: [UIImage]) -> Data {
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let title = "Issue Report — Issue #\(issue.serverId ?? 0)"
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let generatedAt: String = {
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let f = DateFormatter(); f.dateStyle = .long; f.timeStyle = .short
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return f.string(from: Date())
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}()
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let fmt = UIGraphicsPDFRendererFormat()
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fmt.documentInfo = [
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kCGPDFContextTitle as String: title,
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kCGPDFContextAuthor as String: "JanitorialQC Inspector",
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] as [String: Any]
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let bounds = CGRect(x: 0, y: 0, width: kW, height: kH)
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let renderer = UIGraphicsPDFRenderer(bounds: bounds, format: fmt)
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return renderer.pdfData { ctx in
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ctx.beginPage()
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let pctx = PDFContext(ctx, title: title, generatedAt: generatedAt)
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drawHeader(pctx.gc, title: title, page: 1)
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drawFooter(pctx.gc, generatedAt: generatedAt)
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drawSeverityBanner(pctx, issue: issue)
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drawDetailsGrid(pctx, issue: issue, facilityName: facilityName)
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drawDescription(pctx, text: issue.issueDescription)
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if !photos.isEmpty {
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drawPhotoGrid(pctx, title: "Photo Evidence", photos: photos)
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}
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if let notes = issue.resultNotes, !notes.isEmpty {
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drawResolution(pctx, notes: notes)
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}
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if let vAt = issue.verifiedAt {
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drawVerification(pctx, verifiedAt: vAt, note: issue.verificationNote)
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}
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}
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}
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}
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// MARK: - Header & Footer
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private func drawHeader(_ gc: CGContext, title: String, page: Int) {
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gc.setFillColor(C_DARK.cgColor)
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gc.fill(CGRect(x: 0, y: 0, width: kW, height: kHdrH))
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A(title, size: 13, weight: .bold, color: .white)
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.draw(in: CGRect(x: kM, y: 26, width: kBodyW - 60, height: 20))
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A("Janitorial Quality Control System", size: 8, color: C_MUTED)
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.draw(in: CGRect(x: kM, y: 48, width: kBodyW - 60, height: 14))
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A("Page \(page)", size: 8, color: C_MUTED, align: .right)
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.draw(in: CGRect(x: kM, y: 38, width: kBodyW, height: 14))
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}
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private func drawFooter(_ gc: CGContext, generatedAt: String) {
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let y = kH - kFtrH
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gc.setStrokeColor(C_BORDER.cgColor); gc.setLineWidth(0.5)
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gc.move(to: CGPoint(x: kM, y: y + 6)); gc.addLine(to: CGPoint(x: kW - kM, y: y + 6))
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gc.strokePath()
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A("Generated: \(generatedAt) | Janitorial QC System", size: 7, color: C_SLATE)
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.draw(in: CGRect(x: kM, y: y + 12, width: kBodyW * 0.75, height: 12))
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A("CONFIDENTIAL", size: 7, color: C_SLATE, align: .right)
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.draw(in: CGRect(x: kM, y: y + 12, width: kBodyW, height: 12))
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}
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// MARK: - Severity / Status Banner
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private func drawSeverityBanner(_ pctx: PDFContext, issue: LocalIssue) {
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let h: CGFloat = 36
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pctx.need(h + 10)
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let gc = pctx.gc; let y = pctx.y
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let sevW = kBodyW * 0.20; let midW = kBodyW * 0.55; let statW = kBodyW * 0.25
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gc.setFillColor(severityColor(issue.severity).cgColor)
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gc.fill(CGRect(x: kM, y: y, width: sevW, height: h))
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gc.setFillColor(C_DARK.cgColor)
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gc.fill(CGRect(x: kM + sevW, y: y, width: midW, height: h))
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gc.setFillColor(C_SLATE.cgColor)
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gc.fill(CGRect(x: kM + sevW + midW, y: y, width: statW, height: h))
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A(issue.severity.uppercased(), size: 10, weight: .bold, color: .white, align: .center)
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.draw(in: CGRect(x: kM, y: y + 12, width: sevW, height: 14))
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A("Issue #\(issue.serverId ?? 0)", size: 16, weight: .bold, color: .white, align: .center)
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.draw(in: CGRect(x: kM + sevW, y: y + 9, width: midW, height: 20))
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let statTxt = issue.issueStatus.replacingOccurrences(of: "_", with: " ").capitalized
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A(statTxt, size: 10, weight: .bold, color: .white, align: .center)
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.draw(in: CGRect(x: kM + sevW + midW, y: y + 12, width: statW, height: 14))
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pctx.advance(h + 10)
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}
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// MARK: - Details Grid (4 columns, word-wrapped values)
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private func drawDetailsGrid(_ pctx: PDFContext, issue: LocalIssue, facilityName: String) {
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let cols = 4
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let colW = kBodyW / CGFloat(cols)
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let valueW = colW - 12
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let labelH: CGFloat = 10
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let valFontSize: CGFloat = 8.5
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let vPad: CGFloat = 6
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let reportedStr: String = {
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let d = issue.serverReportedAt ?? issue.createdAt
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let f = DateFormatter(); f.dateStyle = .medium; f.timeStyle = .short
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return f.string(from: d)
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}()
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let assignedStr = issue.assignedToName?.isEmpty == false ? issue.assignedToName! : "— Unassigned —"
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let reporterStr = issue.reportedByName?.isEmpty == false ? issue.reportedByName! : "—"
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let areaStr = issue.areaNameCache?.isEmpty == false ? issue.areaNameCache! : "—"
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let statusStr = issue.issueStatus.replacingOccurrences(of: "_", with: " ").capitalized
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let rows: [[(String, String)]] = [
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[("FACILITY", facilityName), ("AREA", areaStr)],
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[("REPORTED BY", reporterStr), ("ASSIGNED TO", assignedStr)],
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[("REPORTED", reportedStr), ("STATUS", statusStr)],
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]
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func rowHeight(_ row: [(String, String)]) -> CGFloat {
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let maxValH = row.map { wrappedHeight($0.1, size: valFontSize, width: valueW) }.max() ?? 14
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return vPad + labelH + 3 + max(maxValH, 12) + 6
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}
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let rowHeights = rows.map(rowHeight)
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let tableH = rowHeights.reduce(0, +)
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pctx.need(tableH + 10)
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let gc = pctx.gc; let y0 = pctx.y
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gc.setFillColor(C_LIGHT.cgColor)
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gc.fill(CGRect(x: kM, y: y0, width: kBodyW, height: tableH))
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gc.setStrokeColor(C_BORDER.cgColor); gc.setLineWidth(0.5)
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gc.stroke(CGRect(x: kM, y: y0, width: kBodyW, height: tableH))
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let x1 = kM + colW
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gc.move(to: CGPoint(x: x1, y: y0)); gc.addLine(to: CGPoint(x: x1, y: y0 + tableH))
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let x2 = kM + colW * 2
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gc.move(to: CGPoint(x: x2, y: y0)); gc.addLine(to: CGPoint(x: x2, y: y0 + tableH))
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let x3 = kM + colW * 3
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gc.move(to: CGPoint(x: x3, y: y0)); gc.addLine(to: CGPoint(x: x3, y: y0 + tableH))
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var ry = y0
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for h in rowHeights.dropLast() {
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ry += h
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gc.move(to: CGPoint(x: kM, y: ry)); gc.addLine(to: CGPoint(x: kM + kBodyW, y: ry))
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}
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gc.strokePath()
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var cursorY = y0
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for (rowIdx, row) in rows.enumerated() {
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let rh = rowHeights[rowIdx]
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for (i, pair) in row.enumerated() {
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// Each (label, value) pair occupies 2 of the 4 columns
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let col = i * 2
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let cx = kM + CGFloat(col) * colW + 6
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A(pair.0, size: 7, color: C_SLATE)
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.draw(in: CGRect(x: cx, y: cursorY + vPad - 2, width: valueW * 2, height: labelH))
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AM(pair.1, size: valFontSize, weight: .semibold)
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.draw(in: CGRect(x: cx, y: cursorY + vPad + labelH + 1,
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width: valueW, height: rh - labelH - vPad))
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}
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cursorY += rh
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}
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pctx.advance(tableH + 12)
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}
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// MARK: - Description
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private func drawDescription(_ pctx: PDFContext, text: String) {
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pctx.need(24)
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A("Description", size: 10, weight: .bold)
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.draw(in: CGRect(x: kM, y: pctx.y, width: kBodyW, height: 16))
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pctx.advance(18)
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drawHR(pctx.gc, y: pctx.y)
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pctx.advance(6)
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let display = text.isEmpty ? "—" : text
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let boxH = max(wrappedHeight(display, size: 9, width: kBodyW - 16) + 12, 24)
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pctx.need(boxH + 8)
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let gc = pctx.gc; let y = pctx.y
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gc.setFillColor(UIColor(red: 0.973, green: 0.984, blue: 0.996, alpha: 1).cgColor)
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gc.fill(CGRect(x: kM, y: y, width: kBodyW, height: boxH))
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AM(display, size: 9)
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.draw(in: CGRect(x: kM + 8, y: y + 6, width: kBodyW - 16, height: boxH))
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pctx.advance(boxH + 10)
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}
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||||
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||||
// MARK: - Photo Grid (compact, 3 columns, compressed images already provided)
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||||
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||||
private func drawPhotoGrid(_ pctx: PDFContext, title: String, photos: [UIImage]) {
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pctx.need(24)
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A(title, size: 10, weight: .bold)
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.draw(in: CGRect(x: kM, y: pctx.y, width: kBodyW, height: 16))
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||||
pctx.advance(18)
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||||
drawHR(pctx.gc, y: pctx.y)
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||||
pctx.advance(8)
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||||
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||||
let cols = 3
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||||
let gap: CGFloat = 8
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||||
let cellW = (kBodyW - CGFloat(cols - 1) * gap) / CGFloat(cols)
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||||
let cellH: CGFloat = 130 // fixed thumbnail height keeps layout predictable
|
||||
|
||||
var col = 0
|
||||
for photo in photos {
|
||||
if col == 0 { pctx.need(cellH + gap) }
|
||||
|
||||
let gc = pctx.gc
|
||||
let cellX = kM + CGFloat(col) * (cellW + gap)
|
||||
let cellY = pctx.y
|
||||
|
||||
// Fit photo into cell, preserving aspect ratio, centred.
|
||||
let imgSize = photo.size
|
||||
let scale = min(cellW / imgSize.width, cellH / imgSize.height, 1.0)
|
||||
let drawW = imgSize.width * scale
|
||||
let drawH = imgSize.height * scale
|
||||
let drawX = cellX + (cellW - drawW) / 2
|
||||
let drawY = cellY + (cellH - drawH) / 2
|
||||
|
||||
let frameRect = CGRect(x: cellX, y: cellY, width: cellW, height: cellH)
|
||||
gc.setStrokeColor(C_BORDER.cgColor); gc.setLineWidth(0.5)
|
||||
gc.stroke(frameRect)
|
||||
photo.draw(in: CGRect(x: drawX, y: drawY, width: drawW, height: drawH))
|
||||
|
||||
col += 1
|
||||
if col == cols {
|
||||
col = 0
|
||||
pctx.advance(cellH + gap)
|
||||
}
|
||||
}
|
||||
if col != 0 { pctx.advance(cellH + gap) } // flush partial row
|
||||
pctx.advance(4)
|
||||
}
|
||||
|
||||
// MARK: - Resolution Details
|
||||
|
||||
private func drawResolution(_ pctx: PDFContext, notes: String) {
|
||||
pctx.need(24)
|
||||
A("Resolution Details", size: 10, weight: .bold, color: C_GREEN)
|
||||
.draw(in: CGRect(x: kM, y: pctx.y, width: kBodyW, height: 16))
|
||||
pctx.advance(18)
|
||||
drawHR(pctx.gc, y: pctx.y, color: C_GREEN)
|
||||
pctx.advance(6)
|
||||
|
||||
let boxH = max(wrappedHeight(notes, size: 9, width: kBodyW - 16) + 12, 24)
|
||||
pctx.need(boxH + 8)
|
||||
|
||||
let gc = pctx.gc; let y = pctx.y
|
||||
gc.setFillColor(C_GREENBG.cgColor)
|
||||
gc.fill(CGRect(x: kM, y: y, width: kBodyW, height: boxH))
|
||||
AM(notes, size: 9)
|
||||
.draw(in: CGRect(x: kM + 8, y: y + 6, width: kBodyW - 16, height: boxH))
|
||||
pctx.advance(boxH + 10)
|
||||
}
|
||||
|
||||
// MARK: - Verification
|
||||
|
||||
private func drawVerification(_ pctx: PDFContext, verifiedAt: Date, note: String?) {
|
||||
pctx.need(24)
|
||||
A("Verification", size: 10, weight: .bold, color: C_GREEN)
|
||||
.draw(in: CGRect(x: kM, y: pctx.y, width: kBodyW, height: 16))
|
||||
pctx.advance(18)
|
||||
drawHR(pctx.gc, y: pctx.y, color: C_GREEN)
|
||||
pctx.advance(6)
|
||||
|
||||
let dateStr: String = {
|
||||
let f = DateFormatter(); f.dateStyle = .medium; f.timeStyle = .short
|
||||
return f.string(from: verifiedAt)
|
||||
}()
|
||||
let noteText = (note?.isEmpty == false) ? note! : nil
|
||||
let noteH = noteText.map { wrappedHeight($0, size: 8.5, width: kBodyW - 16) } ?? 0
|
||||
let boxH = max(14 + (noteText != nil ? noteH + 8 : 0) + 12, 24)
|
||||
|
||||
pctx.need(boxH + 8)
|
||||
let gc = pctx.gc; let y = pctx.y
|
||||
gc.setFillColor(C_GREENBG.cgColor)
|
||||
gc.fill(CGRect(x: kM, y: y, width: kBodyW, height: boxH))
|
||||
gc.setStrokeColor(C_BORDER.cgColor); gc.setLineWidth(0.5)
|
||||
gc.stroke(CGRect(x: kM, y: y, width: kBodyW, height: boxH))
|
||||
|
||||
A("Verified on \(dateStr)", size: 9, weight: .semibold)
|
||||
.draw(in: CGRect(x: kM + 8, y: y + 6, width: kBodyW - 16, height: 14))
|
||||
if let noteText {
|
||||
AM(noteText, size: 8.5, color: C_SLATE)
|
||||
.draw(in: CGRect(x: kM + 8, y: y + 22, width: kBodyW - 16, height: noteH + 4))
|
||||
}
|
||||
pctx.advance(boxH + 8)
|
||||
}
|
||||
|
||||
// MARK: - Micro helpers
|
||||
|
||||
private func drawHR(_ gc: CGContext, y: CGFloat, w: CGFloat = 1.0, color: UIColor = C_BORDER) {
|
||||
gc.setStrokeColor(color.cgColor); gc.setLineWidth(w)
|
||||
gc.move(to: CGPoint(x: kM, y: y)); gc.addLine(to: CGPoint(x: kM + kBodyW, y: y))
|
||||
gc.strokePath()
|
||||
}
|
||||
Reference in New Issue
Block a user