Waitinator

Try it here: https://walles.github.io/waitinator/

Icon source in the icon directory. If you want to change the icon then first edit the source there, then render it and update all the icon files.

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Are we there yet?

Use case:

• You are standing in line
• It takes forever
• You add some observations in this app
• The app tells you when you're likely to be served

Ref: https://docs.flutter.dev/

Color Theme

The color theme of the app has to be set in a number of different places:

• The icon
• In main.dart, in baseColor
• The theme_color in web/manifest.json

TODO

• Replace the ETA algorithm. We should use the least-squares method to get a line through all points, then pick the ETA span so that 90% or more of all observations end up between the lines. Each observation should count as two points, one at the actual number and one at the next number.
• Make a macOS app
• Reloading the app when it was on the Graph tab should keep it on the Graph tab
• Add a version / build number on the info screen, verify on both web and Android
• Hint user to provide more observations if the two ETAs are "too far" apart
• Bold the lower bound time left number
• Enable removing / correcting observations
• Use some kind of variable for the flutter-version in our CI GitHub action

Done

• Finish initial screen
• Add a button for getting to the ETA screen once the initial screen has been properly filled in by the user
• Enable adding queue position observations on the ETA screen
• Run all tests in CI
• Estimate time to arrival
• Publish to Github pages
• Set up CI that publishes to Github pages
• Add source code link somewhere in the UI
• Test on a very low display (think phone web browser in landscape mode)
• Make an icon
• Enable entering multiple identical observations. I wanted to do that when I was on the phone and got to hear "your place is number 19" over and over.
• Render to an Android app
• Make a compliant Android icon
• Make the icon's "i" match the theme blue color, and the various icon backgrounds on web and Android white
• Add dark mode support, tested on web and Android
• Make the ETA screen input box not look like crap in Firefox on Android. Can be reproduced using Chrome on a computer with mobile emulation mode and a narrow enough screen.
• Preserve state even on page reloads
• Test graph with both ETAs being close
• Test graph with start time and initial ETA being close
• Test graph both while counting up and counting down
• Test graph with both light and dark theme
• Don't crash when going to the second screen and then back to the first screen again. On web, we used to crash on the periodic 0.5s timer.