Remove extraneous TODO

Cargo.lock

@@ -29,6 +29,21 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "250f629c0161ad8107cf89319e990051fae62832fd343083bea452d93e2205fd"
 
+[[package]]
+name = "android-tzdata"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e999941b234f3131b00bc13c22d06e8c5ff726d1b6318ac7eb276997bbb4fef0"
+
+[[package]]
+name = "android_system_properties"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "anstream"
 version = "0.5.0"
@@ -155,6 +170,20 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "chrono"
+version = "0.4.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f2c685bad3eb3d45a01354cedb7d5faa66194d1d58ba6e267a8de788f79db38"
+dependencies = [
+ "android-tzdata",
+ "iana-time-zone",
+ "js-sys",
+ "num-traits",
+ "wasm-bindgen",
+ "windows-targets 0.48.5",
+]
+
 [[package]]
 name = "clap"
 version = "4.4.5"
@@ -594,6 +623,29 @@ dependencies = [
  "tokio-native-tls",
 ]
 
+[[package]]
+name = "iana-time-zone"
+version = "0.1.59"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6a67363e2aa4443928ce15e57ebae94fd8949958fd1223c4cfc0cd473ad7539"
+dependencies = [
+ "android_system_properties",
+ "core-foundation-sys",
+ "iana-time-zone-haiku",
+ "js-sys",
+ "wasm-bindgen",
+ "windows-core",
+]
+
+[[package]]
+name = "iana-time-zone-haiku"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f31827a206f56af32e590ba56d5d2d085f558508192593743f16b2306495269f"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "ident_case"
 version = "1.0.1"
@@ -1154,6 +1206,7 @@ dependencies = [
 name = "startrnr"
 version = "0.2.0"
 dependencies = [
+ "chrono",
  "clap",
  "cynic",
  "cynic-codegen",
@@ -1163,7 +1216,6 @@ dependencies = [
  "schema",
  "serde",
  "sqlite",
- "time-format",
 ]
 
 [[package]]
@@ -1233,12 +1285,6 @@ dependencies = [
  "syn 2.0.29",
 ]
 
-[[package]]
-name = "time-format"
-version = "1.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42baec394ad2773a90e037d7b6dfc7518d1f121b9dbaeebad42e19568c39f196"
-
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
@@ -1504,13 +1550,22 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-core"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33ab640c8d7e35bf8ba19b884ba838ceb4fba93a4e8c65a9059d08afcfc683d9"
+dependencies = [
+ "windows-targets 0.52.0",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.48.5",
 ]
 
 [[package]]
@@ -1519,13 +1574,28 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
 dependencies = [
- "windows_aarch64_gnullvm",
+ "windows_aarch64_gnullvm 0.48.5",
- "windows_aarch64_msvc",
+ "windows_aarch64_msvc 0.48.5",
- "windows_i686_gnu",
+ "windows_i686_gnu 0.48.5",
- "windows_i686_msvc",
+ "windows_i686_msvc 0.48.5",
- "windows_x86_64_gnu",
+ "windows_x86_64_gnu 0.48.5",
- "windows_x86_64_gnullvm",
+ "windows_x86_64_gnullvm 0.48.5",
- "windows_x86_64_msvc",
+ "windows_x86_64_msvc 0.48.5",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a18201040b24831fbb9e4eb208f8892e1f50a37feb53cc7ff887feb8f50e7cd"
+dependencies = [
+ "windows_aarch64_gnullvm 0.52.0",
+ "windows_aarch64_msvc 0.52.0",
+ "windows_i686_gnu 0.52.0",
+ "windows_i686_msvc 0.52.0",
+ "windows_x86_64_gnu 0.52.0",
+ "windows_x86_64_gnullvm 0.52.0",
+ "windows_x86_64_msvc 0.52.0",
 ]
 
 [[package]]
@@ -1534,42 +1604,84 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
+
 [[package]]
 name = "winreg"
 version = "0.50.0"

Cargo.toml

@@ -12,7 +12,7 @@ path = "src/main.rs"
 [dependencies]
 # CLI
 clap = { version = "4.4", features = ["derive"] }
-time-format = "1.1"
+chrono = "0.4"
 
 # GraphQL schema
 schema.path = "schema"

README.md

@@ -12,11 +12,11 @@ rankings automatically.
 
 **All of these features work for any game, in any region, without restriction.**
 
-> **Warning**<br>
+> [!WARNING]
 > StartRNR is unstable and under active development. The design and user
 > interface of this program is experimental and may be subject to change.
 > 
-> Currently, only generating datasets has been implemented.
+> Currently, the power ranking and seeding features have not been implemented.
 
 ## Installation
 
@@ -34,6 +34,30 @@ Alternatively, if you use Nix:
 nix profile install github:kiana-S/StartRNR
 ```
 
+## Usage
+
+Once StartRNR is installed, run:
+
+``` sh
+startrnr sync
+```
+
+The program will walk you through creating a dataset, then run its rating
+algorithm. **This may take up to a few hours to finish running!**
+
+Once the rating data has been generated, these commands can be used to access it:
+
+``` sh
+# Access a player's data
+startrnr player info <player>
+
+# Analyze matchup of two players
+startrnr player matchup <player1> <player2>
+```
+
+A player can be specified by their tag or by their
+[discriminator](https://help.start.gg/en/articles/4855957-discriminators-on-start-gg).
+
 ## Configuration
 
 StartRNR stores its rating databases in its config directory, which is located at:

src/database.rs

@@ -4,6 +4,8 @@ use std::fs::{self, OpenOptions};
 use std::path::{Path, PathBuf};
 
 pub struct DatasetMetadata {
+    pub start: Timestamp,
+    pub end: Option<Timestamp>,
     pub last_sync: Timestamp,
 
     pub game_id: VideogameId,
@@ -38,10 +40,11 @@ fn datasets_path(config_dir: &Path) -> std::io::Result<PathBuf> {
 pub fn open_datasets(config_dir: &Path) -> sqlite::Result<Connection> {
     let path = datasets_path(config_dir).unwrap();
 
-    let query = "PRAGMA foreign_keys = ON;
+    let query = "
-
 CREATE TABLE IF NOT EXISTS datasets (
     name TEXT UNIQUE NOT NULL,
+    start INTEGER NOT NULL,
+    end INTEGER,
     last_sync INTEGER NOT NULL,
     game_id INTEGER NOT NULL,
     game_name TEXT NOT NULL,
@@ -68,10 +71,9 @@ CREATE TABLE IF NOT EXISTS events (
 ) STRICT;
 
 CREATE TABLE IF NOT EXISTS sets (
-    id TEXT UNIQUE NOT NULL,
+    id TEXT PRIMARY KEY,
-    event INTEGER NOT NULL,
+    event INTEGER NOT NULL REFERENCES events
-    FOREIGN KEY(event) REFERENCES events
+) STRICT, WITHOUT ROWID;
-) STRICT;
 ";
 
     let connection = sqlite::open(path)?;
@@ -102,6 +104,10 @@ pub fn list_datasets(connection: &Connection) -> sqlite::Result<Vec<(String, Dat
             Ok((
                 r_.read::<&str, _>("name").to_owned(),
                 DatasetMetadata {
+                    start: Timestamp(r_.read::<i64, _>("start") as u64),
+                    end: r_
+                        .read::<Option<i64>, _>("end")
+                        .map(|x| Timestamp(x as u64)),
                     last_sync: Timestamp(r_.read::<i64, _>("last_sync") as u64),
                     game_id: VideogameId(r_.read::<i64, _>("game_id") as u64),
                     game_name: r_.read::<&str, _>("game_name").to_owned(),
@@ -139,8 +145,6 @@ pub fn rename_dataset(connection: &Connection, old: &str, new: &str) -> sqlite::
         r#"UPDATE datasets SET name = '{1}' WHERE name = '{0}';
 ALTER TABLE "{0}_players" RENAME TO "{1}_players";
 ALTER TABLE "{0}_network" RENAME TO "{1}_network";
-DROP INDEX "{0}_network_A";
-CREATE INDEX "{1}_network_A" ON "{1}_network" (player_A);
 DROP INDEX "{0}_network_B";
 CREATE INDEX "{1}_network_B" ON "{1}_network" (player_B);"#,
         old, new
@@ -154,10 +158,10 @@ pub fn new_dataset(
     dataset: &str,
     metadata: DatasetMetadata,
 ) -> sqlite::Result<()> {
-    let query1 = r#"INSERT INTO datasets VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"#;
+    let query1 = r#"INSERT INTO datasets VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"#;
     let query2 = format!(
         r#"CREATE TABLE "{0}_players" (
-    id INTEGER PRIMARY KEY,
+    id INTEGER PRIMARY KEY REFERENCES players,
     last_played INTEGER NOT NULL,
     deviation REAL NOT NULL,
     volatility REAL NOT NULL,
@@ -182,14 +186,13 @@ CREATE TABLE "{0}_network" (
     sets TEXT AS (sets_A || sets_B),
     sets_count INTEGER AS (sets_count_A + sets_count_B),
 
-    UNIQUE (player_A, player_B),
+    PRIMARY KEY (player_A, player_B),
     CHECK (player_A < player_B),
     FOREIGN KEY(player_A) REFERENCES "{0}_players"
         ON DELETE CASCADE,
     FOREIGN KEY(player_B) REFERENCES "{0}_players"
         ON DELETE CASCADE
 ) STRICT;
-CREATE INDEX "{0}_network_A" ON "{0}_network" (player_A);
 CREATE INDEX "{0}_network_B" ON "{0}_network" (player_B);"#,
         dataset
     );
@@ -198,17 +201,19 @@ CREATE INDEX "{0}_network_B" ON "{0}_network" (player_B);"#,
         .prepare(query1)?
         .into_iter()
         .bind((1, dataset))?
-        .bind((2, metadata.last_sync.0 as i64))?
+        .bind((2, metadata.start.0 as i64))?
-        .bind((3, metadata.game_id.0 as i64))?
+        .bind((3, metadata.end.map(|x| x.0 as i64)))?
-        .bind((4, &metadata.game_name[..]))?
+        .bind((4, metadata.last_sync.0 as i64))?
-        .bind((5, &metadata.game_slug[..]))?
+        .bind((5, metadata.game_id.0 as i64))?
-        .bind((6, metadata.country.as_deref()))?
+        .bind((6, &metadata.game_name[..]))?
-        .bind((7, metadata.state.as_deref()))?
+        .bind((7, &metadata.game_slug[..]))?
-        .bind((8, metadata.set_limit as i64))?
+        .bind((8, metadata.country.as_deref()))?
-        .bind((9, metadata.decay_rate))?
+        .bind((9, metadata.state.as_deref()))?
-        .bind((10, metadata.adj_decay_rate))?
+        .bind((10, metadata.set_limit as i64))?
-        .bind((11, metadata.period))?
+        .bind((11, metadata.decay_rate))?
-        .bind((12, metadata.tau))?
+        .bind((12, metadata.adj_decay_rate))?
+        .bind((13, metadata.period))?
+        .bind((14, metadata.tau))?
         .try_for_each(|x| x.map(|_| ()))?;
 
     connection.execute(query2)
@@ -228,6 +233,10 @@ pub fn get_metadata(
         .map(|r| {
             let r_ = r?;
             Ok(DatasetMetadata {
+                start: Timestamp(r_.read::<i64, _>("start") as u64),
+                end: r_
+                    .read::<Option<i64>, _>("end")
+                    .map(|x| Timestamp(x as u64)),
                 last_sync: Timestamp(r_.read::<i64, _>("last_sync") as u64),
                 game_id: VideogameId(r_.read::<i64, _>("game_id") as u64),
                 game_name: r_.read::<&str, _>("game_name").to_owned(),
@@ -612,7 +621,7 @@ pub fn hypothetical_advantage(
     decay_rate: f64,
     adj_decay_rate: f64,
 ) -> sqlite::Result<f64> {
-    use std::collections::{HashMap, HashSet};
+    use std::collections::{HashSet, VecDeque};
 
     // Check trivial cases
     if player1 == player2 || either_isolated(connection, dataset, player1, player2)? {
@@ -620,48 +629,62 @@ pub fn hypothetical_advantage(
     }
 
     let mut visited: HashSet<PlayerId> = HashSet::new();
-    let mut queue: HashMap<PlayerId, (f64, f64)> = HashMap::from([(player1, (0.0, 1.0))]);
+    let mut queue: VecDeque<(PlayerId, Vec<(f64, f64)>)> =
+        VecDeque::from([(player1, Vec::from([(0.0, 1.0)]))]);
+
+    let mut final_paths = Vec::new();
+
+    while !queue.is_empty() && final_paths.len() < 100 {
+        let (visiting, paths) = queue.pop_front().unwrap();
 
-    while !queue.is_empty() {
-        let visiting = *queue
-            .iter()
-            .max_by(|a, b| a.1 .1.partial_cmp(&b.1 .1).unwrap())
-            .unwrap()
-            .0;
-        let (adv_v, decay_v) = queue.remove(&visiting).unwrap();
         let connections = get_edges(connection, dataset, visiting)?;
 
         for (id, adv, sets) in connections
             .into_iter()
             .filter(|(id, _, _)| !visited.contains(id))
         {
-            let advantage = adv_v + adv;
+            let rf = if id == player2 {
+                &mut final_paths
+            } else if let Some(r) = queue.iter_mut().find(|(id_, _)| id == *id_) {
+                &mut r.1
+            } else {
+                queue.push_back((id, Vec::new()));
+                &mut queue.back_mut().unwrap().1
+            };
 
-            if id == player2 {
+            if rf.len() < 100 {
-                return Ok(advantage * decay_v);
+                let decay = if sets >= set_limit {
-            }
-
-            let decay = decay_v
-                * if sets >= set_limit {
                     decay_rate
                 } else {
                     adj_decay_rate
                 };
+                let iter = paths.iter().map(|(a, d)| (a + adv, d * decay));
 
-            if queue
+                rf.extend(iter);
-                .get(&id)
+                rf.truncate(100);
-                .map(|(_, decay_old)| *decay_old < decay)
-                .unwrap_or(true)
-            {
-                queue.insert(id, (advantage, decay));
             }
         }
 
         visited.insert(visiting);
     }
 
-    // No path found
+    let max_decay = final_paths
+        .iter()
+        .map(|x| x.1)
+        .max_by(|d1, d2| d1.partial_cmp(d2).unwrap());
+
+    if let Some(mdec) = max_decay {
+        let sum_decay = final_paths.iter().map(|x| x.1).sum::<f64>();
+        Ok(final_paths
+            .into_iter()
+            .map(|(adv, dec)| adv * dec)
+            .sum::<f64>()
+            / sum_decay
+            * mdec)
+    } else {
+        // No paths found
         Ok(0.0)
+    }
 }
 
 pub fn initialize_edge(
@@ -739,6 +762,8 @@ CREATE TABLE IF NOT EXISTS sets (
 
     pub fn metadata() -> DatasetMetadata {
         DatasetMetadata {
+            start: Timestamp(1),
+            end: None,
             last_sync: Timestamp(1),
             game_id: VideogameId(0),
             game_name: String::from("Test Game"),

src/main.rs

@@ -1,10 +1,10 @@
 #![feature(iterator_try_collect)]
 #![feature(extend_one)]
 
+use chrono::{Local, TimeZone, Utc};
 use clap::{Parser, Subcommand};
 use sqlite::*;
-use std::path::PathBuf;
+use std::{cmp::min, path::PathBuf};
-use time_format::strftime_utc;
 
 mod queries;
 use queries::*;
@@ -117,7 +117,6 @@ fn main() {
     let connection =
         open_datasets(&config_dir).unwrap_or_else(|_| error("Could not open datasets file", 2));
 
-    #[allow(unreachable_patterns)]
     match cli.subcommand {
         Subcommands::Dataset {
             subcommand: DatasetSC::List,
@@ -145,7 +144,12 @@ fn main() {
             sync(&connection, get_auth_token(&config_dir), datasets, all)
         }
 
-        _ => println!("This feature is currently unimplemented."),
+        Subcommands::Ranking {
+            subcommand: RankingSC::Create,
+            dataset,
+        } => ranking_create(&connection, dataset),
+
+        _ => eprintln!("This feature is currently unimplemented."),
     }
 }
 
@@ -156,7 +160,7 @@ fn dataset_list(connection: &Connection) {
 
     for (name, metadata) in datasets {
         print!(
-            "\n· \x1b[1m\x1b[34m{}\x1b[0m
+            "· \x1b[1m\x1b[34m{}\x1b[0m
 \x1b[4m\x1b]8;;https://www.start.gg/{}\x1b\\{}\x1b]8;;\x1b\\\x1b[0m ",
             name, metadata.game_slug, metadata.game_name
         );
@@ -171,15 +175,42 @@ fn dataset_list(connection: &Connection) {
             println!("(Global)");
         }
 
-        if metadata.last_sync.0 == 1 {
+        let start = if metadata.start.0 != 1 {
+            Some(
+                Utc.timestamp_opt(metadata.start.0 as i64, 0)
+                    .unwrap()
+                    .format("%m/%d/%Y"),
+            )
+        } else {
+            None
+        };
+        let end = metadata
+            .end
+            .map(|x| Utc.timestamp_opt(x.0 as i64, 0).unwrap().format("%m/%d/%Y"));
+
+        match (start, end) {
+            (None, None) => (),
+            (Some(s), None) => println!("after {}", s),
+            (None, Some(e)) => println!("until {}", e),
+            (Some(s), Some(e)) => println!("{} - {}", s, e),
+        }
+
+        if metadata.last_sync == metadata.start {
             print!("\x1b[1m\x1b[91mUnsynced\x1b[0m");
+        } else if Some(metadata.last_sync) == metadata.end {
+            print!("\x1b[1m\x1b[92mComplete\x1b[0m");
         } else {
             print!(
                 "\x1b[1mLast synced:\x1b[0m {}",
-                strftime_utc("%b %e, %Y %I:%M %p", metadata.last_sync.0 as i64).unwrap()
+                Local
+                    .timestamp_opt(metadata.last_sync.0 as i64, 0)
+                    .unwrap()
+                    .format("%b %e, %Y %r")
             );
         }
-        if current_time().0 - metadata.last_sync.0 > SECS_IN_WEEK {
+        if current_time().0 - metadata.last_sync.0 > SECS_IN_WEEK
+            && Some(metadata.last_sync) != metadata.end
+        {
             if name == "default" {
                 print!(" - \x1b[33mRun 'startrnr sync' to update!\x1b[0m");
             } else {
@@ -204,7 +235,7 @@ fn dataset_list(connection: &Connection) {
             "\x1b[1mRating Period:\x1b[0m {} days",
             metadata.period / SECS_IN_DAY as f64
         );
-        println!("\x1b[1mTau Constant:\x1b[0m {}", metadata.tau);
+        println!("\x1b[1mTau Constant:\x1b[0m {}\n", metadata.tau);
     }
 }
 
@@ -300,6 +331,70 @@ State/province to track ratings for (leave empty for none): "
         None
     };
 
+    // Interval
+
+    print!(
+        "
+\x1b[1mStart Date\x1b[0m
+The rating system will process tournaments starting at this date. If only a year
+is entered, the date will be the start of that year.
+
+Start date (year, m/y, or m/d/y): "
+    );
+    let start = {
+        let string = read_string();
+        if string.is_empty() {
+            Timestamp(1)
+        } else if string.chars().all(|c| c.is_ascii_digit() || c == '/') {
+            if let Some((y, m, d)) = match string.split('/').collect::<Vec<_>>()[..] {
+                [] => None,
+                [y] => Some((y.parse().unwrap(), 1, 1)),
+                [m, y] => Some((y.parse().unwrap(), m.parse().unwrap(), 1)),
+                [m, d, y] => Some((y.parse().unwrap(), m.parse().unwrap(), d.parse().unwrap())),
+                _ => error("Input is not a date", 1),
+            } {
+                Timestamp(Utc.with_ymd_and_hms(y, m, d, 0, 1, 1).unwrap().timestamp() as u64)
+            } else {
+                Timestamp(1)
+            }
+        } else {
+            error("Input is not a date", 1);
+        }
+    };
+
+    print!(
+        "
+\x1b[1mEnd Date\x1b[0m
+The rating system will stop processing tournaments when it reaches this date. If
+only a year is entered, the date will be the end of that year.
+
+End date (year, m/y, or m/d/y): "
+    );
+    let end = {
+        let string = read_string();
+        if string.is_empty() {
+            None
+        } else if string.chars().all(|c| c.is_ascii_digit() || c == '/') {
+            if let Some((y, m, d)) = match string.split('/').collect::<Vec<_>>()[..] {
+                [] => None,
+                [y] => Some((y.parse().unwrap(), 12, 31)),
+                [m, y] => Some((y.parse().unwrap(), m.parse().unwrap(), 30)),
+                [m, d, y] => Some((y.parse().unwrap(), m.parse().unwrap(), d.parse().unwrap())),
+                _ => error("Input is not a date", 1),
+            } {
+                Some(Timestamp(
+                    Utc.with_ymd_and_hms(y, m, d, 11, 59, 59)
+                        .unwrap()
+                        .timestamp() as u64,
+                ))
+            } else {
+                None
+            }
+        } else {
+            error("Input is not a date", 1);
+        }
+    };
+
     // Set Limit
 
     let mut set_limit = 0;
@@ -426,7 +521,9 @@ Tau constant (default 0.4): "
         connection,
         &name,
         DatasetMetadata {
-            last_sync: Timestamp(1),
+            start,
+            end,
+            last_sync: start,
             game_id,
             game_name,
             game_slug,
@@ -496,7 +593,6 @@ fn player_info(connection: &Connection, dataset: Option<String>, player: String)
     let (won, lost) = get_player_set_counts(connection, &dataset, id)
         .unwrap_or_else(|_| error("Could not find player", 1));
 
-    println!();
     if let Some(pre) = prefix {
         print!("\x1b[2m{}\x1b[22m ", pre);
     }
@@ -518,7 +614,6 @@ fn player_info(connection: &Connection, dataset: Option<String>, player: String)
     println!("\x1b[1mVolatility:\x1b[0m {}", volatility);
 }
 
-// TODO: Finish
 fn player_matchup(
     connection: &Connection,
     dataset: Option<String>,
@@ -583,7 +678,6 @@ fn player_matchup(
     let len1 = prefix1.as_deref().map(|s| s.len() + 1).unwrap_or(0) + name1.len();
     let len2 = prefix2.as_deref().map(|s| s.len() + 1).unwrap_or(0) + name2.len();
 
-    println!();
     if let Some(pre) = prefix1 {
         print!("\x1b[2m{}\x1b[22m ", pre);
     }
@@ -663,14 +757,22 @@ fn sync(connection: &Connection, auth: String, datasets: Vec<String>, all: bool)
     let current_time = current_time();
 
     for dataset in datasets {
-        let dataset_config = get_metadata(connection, &dataset)
+        let dataset_metadata = get_metadata(connection, &dataset)
             .expect("Error communicating with SQLite")
             .unwrap_or_else(|| error(&format!("Dataset {} does not exist!", dataset), 1));
 
-        sync_dataset(connection, &dataset, dataset_config, current_time, &auth)
+        let before = dataset_metadata
+            .end
+            .map(|end| min(end, current_time))
+            .unwrap_or(current_time);
+
+        sync_dataset(connection, &dataset, dataset_metadata, before, &auth)
             .expect("Error communicating with SQLite");
 
-        update_last_sync(connection, &dataset, current_time)
+        update_last_sync(connection, &dataset, before).expect("Error communicating with SQLite");
-            .expect("Error communicating with SQLite");
     }
 }
+
+fn ranking_create(connection: &Connection, dataset: Option<String>) {
+    let dataset = dataset.unwrap_or_else(|| String::from("default"));
+}

src/sync.rs

@@ -125,7 +125,7 @@ fn get_event_sets(event: EventId, auth: &str) -> Option<Vec<SetData>> {
 
 fn get_tournament_events(
     metadata: &DatasetMetadata,
-    current_time: Timestamp,
+    before: Timestamp,
     auth: &str,
 ) -> Option<Vec<EventData>> {
     println!("Accessing tournaments...");
@@ -135,7 +135,7 @@ fn get_tournament_events(
     let tour_response = run_query::<TournamentEvents, _>(
         TournamentEventsVars {
             after_date: after,
-            before_date: current_time,
+            before_date: before,
             game_id: metadata.game_id,
             country: metadata.country.as_deref(),
             state: metadata.state.as_deref(),
@@ -160,7 +160,7 @@ fn get_tournament_events(
         let next_response = run_query::<TournamentEvents, _>(
             TournamentEventsVars {
                 after_date: after,
-                before_date: current_time,
+                before_date: before,
                 game_id: metadata.game_id,
                 country: metadata.country.as_deref(),
                 state: metadata.state.as_deref(),
@@ -304,10 +304,10 @@ pub fn sync_dataset(
     connection: &Connection,
     dataset: &str,
     metadata: DatasetMetadata,
-    current_time: Timestamp,
+    before: Timestamp,
     auth: &str,
 ) -> sqlite::Result<()> {
-    let events = get_tournament_events(&metadata, current_time, auth)
+    let events = get_tournament_events(&metadata, before, auth)
         .unwrap_or_else(|| error("Could not access start.gg", 1));
 
     connection.execute("BEGIN;")?;

src/util.rs

@@ -10,12 +10,12 @@ pub const SECS_IN_DAY: u64 = SECS_IN_HR * 24;
 pub const SECS_IN_WEEK: u64 = SECS_IN_DAY * 7;
 
 pub fn error(msg: &str, code: i32) -> ! {
-    println!("\nERROR: {}", msg);
+    eprintln!("\nERROR: {}", msg);
     exit(code)
 }
 
 pub fn issue(msg: &str, code: i32) -> ! {
-    println!("\n{}", msg);
+    eprintln!("\n{}", msg);
     exit(code)
 }