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2020-08-20 Prefer reading secrets.json to using pass showWilliam Carroll2-2/+8
I'm attempting to maintain a top-level secrets.json that defines all of the sensitive data that I'd like to version-control without exposing everything in cleartext to the world. To that end, I'm using `git secret`, which will use `gpg` to encrypt secrets.json everytime I call `git secret hide` and decrypt everytime I call `git secret reveal`. I'm going to try this until I don't like it anymore... if that day comes... I should write a blog post about my setup to solicit useful feedback and share my ideas with others.
2020-08-20 Drop support for dir-locals.nix, <nixpkgs>, etc.William Carroll18-27/+30
In the spirit of Marie Kondo, I'm tidying up! TL;DR: - Prefer .envrc `use_nix` and delete all dir-locals.nix files - Remove ~all references to <nixpkgs>, <unstable>, <depot> and prefer referencing each with briefcase.third_party.{pkgs,unstable,depot} - Delete nixBufferFromShell function since I was only using that in dir-locals.nix files
2020-08-20 Disable failing goals/default.nixWilliam Carroll3-6/+0
Disabling failing packages until I can get a working CI build.
2020-08-20 Revise previous opinions about absolute paths GT <bracket-notation>William Carroll3-3/+4
Unforeseen problem: `buildkite-agent` runs its builds in a separate directory, so if I want the `nix-build` command to build the newly checked out code, I need to set <briefcase> to the CWD.
2020-08-20 Attempt nix-build instead of nixos-rebuild switchWilliam Carroll2-0/+0
I've encountered a few problems with attempting to support nixos-rebuild: - the activation step requires `sudo` privileges - the `buildkite-agent` runs on the same machine, socrates, that is rebuilding itself. This means that when the activation step runs, it will attempt to restart `buildkite-agent` when the agent is still working I'm slowly removing places in my nix code that rely on '<bracket>' notation, so that I no longer depend on NIX_PATH being set. I still have more work to do. {covid-uk,sandbox}/default.nix are breaking when I attempt to run my build-socrates.sh script locally, so I'm temporarily disabling them until I can get CI working as I expect.
2020-08-20 Move shift-time into top-level //zooWilliam Carroll5-235/+0
I'm still unsure whether or not this is a good idea, but experimenting is a good way to find out!
2020-08-20 Support parsing and shifting timeWilliam Carroll4-20/+130
TL;DR: - Adds string-conversions library - Adds tests for remaining units and repeating requests - Adds a REPL in main
2020-08-20 Support parsing second shiftsWilliam Carroll5-0/+125
Parse inputs like -10s into 10 second shifts back in time.
2020-08-20 Support POST /create-payment-intentWilliam Carroll7-5/+118
Interact with Stripe's payment_intents API endpoint. I'm not committing the index.html that contains client-side code that interacts with the /create-payment-intent endpoint, but it contains sensitive information, so I'm omitting it for now. TL;DR: - Define POST /create-payment-intent endpoint - Include envStripeAPIKey in Context record - Define a top-level Stripe module for making API calls - Define types and instances that align with Stripes request and response types - Depend on the Req library: a higher-level library than http-client
2020-08-12 Consume buildHaskell functionsWilliam Carroll2-37/+35
Use the newly defined `buildHaskell` function for a few of my existing Haskell projects. So far, it works as intended!
2020-08-10 Drop support for ServantT transformer type for serverWilliam Carroll3-16/+59
After burning a few hours wrestling with the type system, I decided to revert to the simpler `Server API` type instead of the `ServantT` transformer type. The problem is that I couldn't write a MonadError instance for `RIO Context`, which is my `AppM` (i.e. application monad). Using `throwIO` in the server handlers results in 500 errors, which is not what I wanted. I'm still pretty fuzzy about what's happening; I now know that exception handling in Haskell is pretty gnaryly. I may revisit this at a later time when my knowledge is more extensive. For now: time to fry bigger fish. An easier abstract is for me to pass `T.Context` into `server` as an argument, which after all is what a Reader does. TL;DR: - Read server, client ports from .envrc - Define a top-level Failure type (empty for now) - Define a top-level Success type - Define App as RIO Context (Either Failure Success)
2020-08-09 Prefer ServantT for server to consume App contextWilliam Carroll2-24/+33
Long story -> short: I'd like to access my App monad from within my Servant handlers. While this code type-checks, I'm not sure it's working as intended. Needing to change throwError to throwIO fails the "smell test". I expect to refactor this code, but I'm calling it a night for now.
2020-08-09 Replace Prelude with RIOWilliam Carroll7-39/+95
I believe RIO stands for: "ReaderT <something-something> IO", which is a nod to the top-level application data type: ```haskell -- This is a simplification newtype RIO env a = RIO { runRIO :: ReaderT env a () } ``` I read about RIO from an FP-Complete blog post a few months ago, and now I'm excited to try it out for a real project. Bon voyage!
2020-08-09 Move Haskell-related shell.nix code into its own shell.nixWilliam Carroll2-11/+19
I'm getting tired of: ```shell $ cd <project-root> $ nix-shell $ cd src/server $ ghci Main.hs ``` Instead: ```shell $ cd <project-root>/src/server $ ghci Main.hs ```
2020-08-09 Sketch database schemaWilliam Carroll1-0/+41
Defining a few tables in init.sql to sketch a few records that I need to persist.
2020-08-09 Initialize a default.nix for nix-buildWilliam Carroll1-0/+27
As the previous commit mentions, I'm attempting to build and deploy this project with `nix-shell` and `nix-build` instead of `cabal` and `stack`. I'm in the Hamburg airport right now, and my internet connection isn't stable enough to test this, so I'm committing it until I can more robustly test it.
2020-08-09 Add common language extensions to .ghciWilliam Carroll6-9/+5
I'd like to see if I can avoid using `cabal` and `stack` and build and deploy this application using `nix-shell` and `nix-build` only. Let's see how that goes.
2020-08-08 Consume GoogleSignIn.validateJWTWilliam Carroll4-26/+60
TL;DR: - Consume GoogleSignIn.validateJWT in the Handler for /verify - Rename validation fn to validateJWT - Prefer Text to String type
2020-08-08 Add tests for "exp" field of the JWTWilliam Carroll4-13/+61
Assert that the exp field of the JWT is "fresh".
2020-08-08 Test that the JWT's iss field meets our expectationsWilliam Carroll3-9/+42
The JWT should match "accounts.google.com" or "https://accounts.google.com". If it doesn't, we produce a validation error. TL;DR: - Group all failed stringOrURI function calls as StringOrURIParseFailure errors
2020-08-08 Test that an improperly encoded JWT returns a DecodeErrorWilliam Carroll1-0/+3
The subject of this commit message says it all.
2020-08-08 Tests valid and invalid JWTs for the "aud" fieldWilliam Carroll4-21/+87
Test that when the JWT contains the client ID for my Google app, the JWT is valid, and when it doesn't, it's invalid.
2020-08-08 Update jwtIsValid API to return IO BoolWilliam Carroll2-6/+6
I need IO for: - Getting the current time to validate `exp` - Making an HTTP request to Google's token verifier endpoint
2020-08-08 Remove redundant deps from API.hsWilliam Carroll1-2/+0
Thank you, -Wall. You are truly an unsung hero.
2020-08-08 Begin work for supporting GoogleSignIn server-sideWilliam Carroll4-5/+92
I'm attempting to be an obedient boy and implement this and future features using TDD. TL;DR: - Defined a few tests - Defined an empty GoogleSignIn module - Defined a Fixtures module to quickly create JWTs to test
2020-08-08 Define Utils moduleWilliam Carroll1-0/+8
Dumping grounds for personal, stylistic functions intended to improve readabily and writability (in that order).
2020-08-06 Support echo server to test POST /verifyWilliam Carroll5-8/+79
TL;DR: - Add common dependencies like Servant, Aeson, Warp, Cors - Define a POST /verify endpoint for our client to hit - POST to /verify client-side onSignIn
2020-08-06 Support Google Sign-in client-sideWilliam Carroll5-1/+53
TODO: Support Google Sign-in server-side Also: - Add Haskell to project's shell.nix - Add stubbed Main.hs and Spec.hs - Add common .ghci file
2020-07-20 Create //playbooksWilliam Carroll1-1/+1
I'm particularly excited about this idea. As I was reading Graham's "Erase your darlings" blog post, I had an idea: I should have playbooks at the root of my monorepo. I can have playbooks for the following: - How to install NixOS - How to build GCR images from Nix expressions - A collection of miscellaneous shell commands (e.g. "how to kill a process by name") - What series of steps should I follow when I receive a paycheck I already keep README's at the root of each package, which I think is where many of these instructions belong. Other tutorials that I write for myself that do not belong to any package can go in //playbooks. I also will host my personal habits in //playbooks since habits are a bit like playbooks for life. Let's see how this idea ages as the caffeine wears off...
2020-07-02 Prefer builtins.pathWilliam Carroll10-11/+11
Thanks to the Nix anti-patterns documented here... https://nix.dev/anti-patterns/language.html#reproducability-referencing-top-level-directory-with ...I'm cleaning up some of my Nix expressions. Read the article for more context.
2020-04-19 Restore default view to OverviewWilliam Carroll1-1/+1
I often debug by changing the values of State.Model in the State.init function. I usually revert these these chage; this time I didn't.
2020-04-19 Correct all G_sharp pitch classesWilliam Carroll1-7/+7
I incorrectly modelled all of the G-sharps in my application as belonging to the G pitchClass, which resulted in a strange bug where vieChord printed "G minor Root position", but the Piano highlit a G minor. I checked the other accidentals, and it looks like everything is properly classified.
2020-04-19 Remove unused Msg'sWilliam Carroll1-48/+0
I'm sure this app contains more unused code. I would like to find some Elm tools for detecting and deleting dead code, but this isn't my current priority. My current priority is dogfooding this app until I find it genuinely useful for myself.
2020-04-19 Ensure only whitelisted chord inversions present in initial stateWilliam Carroll1-2/+6
Whoops...
2020-04-19 Display "Get ready..." message before practicingWilliam Carroll1-6/+13
This is a temporary solution. Ideally I would like to handle this with the following: - Show the flashcard for a chord shortly after beginning a practice session - Display a small 3...2...1... countdown timer immediately after beginning a practice session I need to dig more deeply into Elm's Time module and subscriptions to better understand how to properly solve this problem. In the meantime, please tolerate this short-term solution.
2020-04-19 Restore support for whitelisted chord inversionsWilliam Carroll2-44/+34
Allow users to include or exclude chord inversions.
2020-04-19 Drop support for PracticeModeWilliam Carroll2-43/+3
For now, I'd like to support selecting keys and whitelisting inversions.
2020-04-19 Support a FlashCard before showing the notes that comprise a chordWilliam Carroll5-5/+66
My much anticipated feature: first prompt the user for a name of a chord, then show the user that chord. Cascading changes: I changed the "Tap to practice" overlayButton's opacity from 30% to 100% because pausing when showFlashCard is True causes the two piece TIL: You can batch Elm Subscriptions using the Sub.batch function. What I haven't learned yet: How to best handle rotating screens for mobile devices (i.e. portrait vs. landscape modes). In time... What's left? - Support sound - Support a fine-tune section of the preferences - Support tablet and web browser variants - Ask users for the "I chord" instead of asking "C major Root position" - More styling (of course)
2020-04-19 Create Tailwind moduleWilliam Carroll5-27/+49
Moving the UI.tw function into Tailwind.use. Creating and consuming some functions like Tailwind.if_ and Tailwind.when to make it easier to conditionally style some of my components.
2020-04-19 Ensure the overlayButton is truly h-screen and w-screenWilliam Carroll2-112/+35
Now the "Tap to practice" button fully covers the screen. - Dropped support for a Piano direction (for now) - Using w-full and w-1/2 for piano key "length"
2020-04-19 Responsively size UIWilliam Carroll5-12/+84
TL;DR: scale down UI for non-mobile devices. I pulled the screen resolution for my phone, the Google Pixel 4, off of the internet. I created a device profile in Chrome to develop this application specifically for my phone. To my surprise, when I opened the app on my phone, many of elements that looked good in Google Chrome, looked askew on my phone. I needed to troubleshoot. Here's how I did that: I used Tailwind to responsively color the bg for each breakpoint to see if my device was sm, md, lg, xl (according to Tailwind's breakpoint terminology). After reading Tailwind's documentation and comparing their breakpoints with my Pixel 4's width (i.e. 1080px), I figured that my device would be lg. It's not; it's md, which I confirmed by using ngrok to load localhost:8000 on my phone and see that the background-color was "md:bg-green-600". I'm still unsure why my device is not lg, but knowing that my device was md was enough to fix many of the styling issues. My current theory is that while my screen's resolution is 1080 wide, the pixel density affects the media query for the breakpoint.
2020-04-19 Set the selectedChord to Nothing when setting a keyWilliam Carroll1-0/+1
This helps us avoid showing a chord from a key that the user did not whitelist.
2020-04-19 Prune {Select,Deselect}AllKeys actionsWilliam Carroll1-19/+0
Removing more unused code attempting to focus this app's scope.
2020-04-19 Highlight root note of each chordWilliam Carroll2-37/+70
Refactor the Piano component to highlight the root note of each chord. If this makes things too easy, I can support this as a preference. Also: - Reduced the number of keys that the piano displays and increased the key thickness to reclaim the space - Preferred using Tailwind selectors instead of inline styling where applicable - Call List.reverse on the keys to ensure that the top-most note is a lower note than the bottom-most note TODO: - Support showing only the name of the chord and not just the notes that comprise that chord - Rewrite the function that generates the chords for a given range of notes - Consider supporting a dark mode
2020-04-18 Remove horizontal paddingWilliam Carroll1-2/+2
Google Chrome's device preview doesn't resemble what I see when I use my phone to visit this page.
2020-04-18 Create Overview for Learn Piano ChordsWilliam Carroll2-2/+94
Since I've published this, I should include an Overview page to orient potential users. This Overview could be better -- as could many things with this app -- but it's a start, and I'm seeking small wins.
2020-04-18 Remove duplicate step from READMEWilliam Carroll1-2/+1
I mention setting tempo twice... whoops.
2020-04-18 Prefer "Tap" to "Press"William Carroll1-1/+1
I'm preferring the verb "tap" to "press".
2020-04-18 Debug unresponsive button press for selectKeyWilliam Carroll1-2/+2
Observed problem: Tapping "C major, A minor" key, which LPC sets by default, does not unset it. Bug: handleClick passed the relativeMinor Key but the default value in State.Model is the C Major key. We would toggled b/w [Cmajor] -> [Cmajor,Aminor], and because toggled checked if either Cmajor or Aminor was present, it was always true. Solution: Check relativeMajor to set toggled.
2020-04-18 Tidy appWilliam Carroll7-538/+498
Now that I have a deployed an MVP of my app, I am tidying things up to support the next phase of development. TL;DR: - Moved application Model-related code into State module - Moved each View into its own module - Deleted unused ChordInspector component - Deleted unused Msg's, {Increase,Decrease}Tempo - Deleted misc unused code