done

.envrc

@@ -0,0 +1 @@
+use flake .

.gitignore

@@ -0,0 +1,2 @@
+/target
+result*

Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "quick-start"
+version = "0.1.0"
+edition = "2021"
+license = "MIT"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+reqwest = { version = "0.11", features = ["blocking", "json"] }

deny.toml

@@ -0,0 +1,4 @@
+[licenses]
+allow = [
+  "MIT"
+]

flake.lock

@@ -0,0 +1,121 @@
+{
+  "nodes": {
+    "advisory-db": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1709733674,
+        "narHash": "sha256-wmbzUBiecUofJaPLEZnKrfvxxjrxrpBPz9plt2K+Fr4=",
+        "owner": "rustsec",
+        "repo": "advisory-db",
+        "rev": "120db258e97454f900dff7cb8eb1b61a134f3eb0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rustsec",
+        "repo": "advisory-db",
+        "type": "github"
+      }
+    },
+    "crane": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709610799,
+        "narHash": "sha256-5jfLQx0U9hXbi2skYMGodDJkIgffrjIOgMRjZqms2QE=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "81c393c776d5379c030607866afef6406ca1be57",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": []
+      },
+      "locked": {
+        "lastModified": 1709792596,
+        "narHash": "sha256-DQL1KJ9AaoQjwMkZkSBrW9/az2dwbbBnhNIbIzgeDIE=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "221fedb628b1e86e88d8fbfbd20b699448e58fa9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1709126324,
+        "narHash": "sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "d465f4819400de7c8d874d50b982301f28a84605",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1709780214,
+        "narHash": "sha256-p4iDKdveHMhfGAlpxmkCtfQO3WRzmlD11aIcThwPqhk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "f945939fd679284d736112d3d5410eb867f3b31c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "advisory-db": "advisory-db",
+        "crane": "crane",
+        "fenix": "fenix",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,159 @@
+{
+  description = "Build a cargo project";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+
+    crane = {
+      url = "github:ipetkov/crane";
+      inputs = {
+        #flake-utils.follows = "flake-utils";
+        nixpkgs.follows = "nixpkgs";
+      };
+    };
+
+    fenix = {
+      url = "github:nix-community/fenix";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.rust-analyzer-src.follows = "";
+    };
+
+    advisory-db = {
+      url = "github:rustsec/advisory-db";
+      flake = false;
+    };
+  };
+
+  outputs = { self, nixpkgs, crane, fenix, flake-utils, advisory-db, ... }:
+  let
+  toolchain = system: (fenix
+      .packages
+      .${system}
+      .fromToolchainName
+      {
+        name = "nightly-2024-02-28";
+        sha256 = "sha256-Q/cX94ZIr486z4i5jhmJa44NVALWBoJcMAVic4KfuxA=";
+      });
+  in
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+
+        inherit (pkgs) lib;
+
+        craneLib = crane.lib.${system}.overrideToolchain (toolchain system).toolchain;
+        src = craneLib.cleanCargoSource (craneLib.path ./.);
+
+        # Common arguments can be set here to avoid repeating them later
+        commonArgs = {
+          inherit src;
+          strictDeps = true;
+
+          nativeBuildInputs = with pkgs; [
+            pkg-config
+          ];
+
+          buildInputs = [
+            pkgs.openssl
+            # Add additional build inputs here
+          ] ++ lib.optionals pkgs.stdenv.isDarwin [
+            # Additional darwin specific inputs can be set here
+            pkgs.libiconv
+          ];
+
+          # Additional environment variables can be set directly
+          # MY_CUSTOM_VAR = "some value";
+        };
+
+         craneLibLLvmTools =
+        craneLib.overrideToolchain
+        ((toolchain system).withComponents [
+          "cargo"
+          "clippy"
+          "llvm-tools"
+          "rustc"
+          "rust-analyzer"
+          "rustfmt"
+        ]);
+        # Build *just* the cargo dependencies, so we can reuse
+        # all of that work (e.g. via cachix) when running in CI
+        cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+
+        # Build the actual crate itself, reusing the dependency
+        # artifacts from above.
+        my-crate = craneLib.buildPackage (commonArgs // {
+          inherit cargoArtifacts;
+        });
+      in
+      {
+        checks = {
+          # Build the crate as part of `nix flake check` for convenience
+          inherit my-crate;
+
+          # Run clippy (and deny all warnings) on the crate source,
+          # again, resuing the dependency artifacts from above.
+          #
+          # Note that this is done as a separate derivation so that
+          # we can block the CI if there are issues here, but not
+          # prevent downstream consumers from building our crate by itself.
+          my-crate-clippy = craneLib.cargoClippy (commonArgs // {
+            inherit cargoArtifacts;
+            cargoClippyExtraArgs = "--all-targets -- --deny warnings";
+          });
+
+          my-crate-doc = craneLib.cargoDoc (commonArgs // {
+            inherit cargoArtifacts;
+          });
+
+          # Check formatting
+          my-crate-fmt = craneLib.cargoFmt {
+            inherit src;
+          };
+
+          # Audit dependencies
+          my-crate-audit = craneLib.cargoAudit {
+            inherit src advisory-db;
+          };
+
+          # Audit licenses
+          my-crate-deny = craneLib.cargoDeny {
+            inherit src;
+          };
+
+          # Run tests with cargo-nextest
+          # Consider setting `doCheck = false` on `my-crate` if you do not want
+          # the tests to run twice
+          my-crate-nextest = craneLib.cargoNextest (commonArgs // {
+            inherit cargoArtifacts;
+            partitions = 1;
+            partitionType = "count";
+          });
+        };
+
+        packages = {
+          default = my-crate;
+        } // lib.optionalAttrs (!pkgs.stdenv.isDarwin) {
+          my-crate-llvm-coverage = craneLibLLvmTools.cargoLlvmCov (commonArgs // {
+            inherit cargoArtifacts;
+          });
+        };
+
+        apps.default = flake-utils.lib.mkApp {
+          drv = my-crate;
+        };
+
+        devShells.default = craneLib.devShell {
+          # Inherit inputs from checks.
+          checks = self.checks.${system};
+
+          # Additional dev-shell environment variables can be set directly
+          # MY_CUSTOM_DEVELOPMENT_VAR = "something else";
+
+          # Extra inputs can be added here; cargo and rustc are provided by default.
+          packages = [
+            # pkgs.ripgrep
+          ];
+        };
+      });
+}

src/main.rs

@@ -0,0 +1,89 @@
+use std::error::Error;
+use std::fs::{self, File, OpenOptions};
+use std::io::Write;
+use std::time::Duration;
+use std::{env, thread};
+
+const URL: &str = "https://theboardr.com/events/";
+
+fn main() {
+    let last_event_id_filename =
+        env::var("LAST_EVENT_ID_PATH").expect("Environment variable LAST_EVENT_ID_PATH is not set");
+
+    let potential_cph_open_filename = env::var("POTENTIAL_CPH_OPEN_PATH")
+        .expect("Environment variable POTENTIAL_CPH_OPEN_PATH is not set");
+
+    create_file_if_not_exists(&potential_cph_open_filename);
+    let last_checked_event_id = get_last_checked_event_id(&last_event_id_filename)
+        .expect("Failed to get last checked event id");
+    let most_recent_event_id: u64 =
+        find_most_recent_event_id(&potential_cph_open_filename, last_checked_event_id)
+            .expect("Failed to find most recent event id");
+    update_last_checked_event_id(&last_event_id_filename, most_recent_event_id);
+}
+
+fn get_last_checked_event_id(filename: &String) -> Result<u64, Box<dyn Error>> {
+    let last_checked_event_id = fs::read_to_string(filename)?.trim().parse()?;
+    Ok(last_checked_event_id)
+}
+
+fn find_most_recent_event_id(cph_filepath: &str, last_checked: u64) -> Result<u64, Box<dyn Error>> {
+    let mut last_checked_event_id = last_checked;
+    let mut last_event_exists = true;
+    while last_event_exists == true {
+        last_checked_event_id += 1;
+        println!("Checking event: {}", last_checked_event_id);
+        let (exists, is_cph_open) = check_event(last_checked_event_id);
+        println!("- Exists:   {}", exists);
+        println!("- CPH-OPEN: {}", is_cph_open);
+        last_event_exists = exists;
+        thread::sleep(Duration::from_secs(2));
+        if is_cph_open {
+            save_event_id(cph_filepath, last_checked_event_id);
+        }
+    }
+    Ok(last_checked_event_id - 1)
+}
+
+fn check_event(id: u64) -> (bool, bool) {
+    let mut no_requests = 0;
+    let mut event_confirmed = false;
+    let mut matches = false;
+    while no_requests < 3 && !event_confirmed {
+        no_requests += 1;
+        let content = reqwest::blocking::get(format!("{URL}{id}"))
+            .expect("")
+            .text()
+            .expect("");
+        event_confirmed = content.contains(&format!("\"EventID\":{id}"));
+        matches = content.to_lowercase().contains(&format!("cph"))
+            || content.to_lowercase().contains(&format!("copenhagen"));
+        if !event_confirmed {
+            thread::sleep(Duration::from_secs(10));
+        }
+    }
+    (event_confirmed, matches)
+}
+
+fn save_event_id(filename: &str, id: u64) {
+    let mut cph_file = OpenOptions::new()
+        .append(true)
+        .open(filename)
+        .expect(&format!("Failed to open file: {}", filename));
+    let id_to_write = format!("{}\n", id.to_string());
+    cph_file
+        .write(id_to_write.as_bytes())
+        .expect("Failed to write last checked event");
+}
+
+fn update_last_checked_event_id(filename: &str, id: u64) {
+    let content = format!("{}\n", id.to_string());
+    fs::write(filename, content).expect("Failed to write last checked event");
+}
+
+fn create_file_if_not_exists(filename: &str) {
+    if !std::path::Path::new(filename).exists() {
+        // If the file doesn't exist, create it
+        File::create(filename).expect("");
+    }
+}