Implemented database seeding as per #61

.env.sample

@@ -9,3 +9,6 @@ DATABASE_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${POSTGRES_HOST}
 RUST_ENV=development
 ROOT_SECRET=insecuresecret123 # Used to verify origin of attendance mutations
 ROOT_PORT=3000
+
+# Seed toggle
+SEEDING_ENABLED=false

src/database_seeder/mod.rs

@@ -0,0 +1,20 @@
+use sqlx::PgPool;
+use std::fs;
+use std::path::Path;
+
+pub async fn seed_database(pool: &PgPool) {
+    let sql_path = Path::new("src/database_seeder/seed.sql");
+    let seed_sql = fs::read_to_string(sql_path).expect("Failed to read seed.sql file");
+
+    let statements: Vec<&str> = seed_sql
+        .split(';')
+        .filter(|stmt| !stmt.trim().is_empty())
+        .collect();
+
+    for statement in statements {
+        sqlx::query(statement)
+            .execute(pool)
+            .await
+            .expect("Failed to execute seed statement");
+    }
+}

src/database_seeder/seed.sql

@@ -0,0 +1,125 @@
+-- Member
+INSERT INTO member (
+    roll_no, name, email, sex, year, hostel, mac_address, discord_id, group_id
+)
+SELECT 
+    'R' || LPAD(i::TEXT, 4, '0'),
+    CASE 
+        WHEN i % 5 = 0 THEN 'John Doe ' || i
+        WHEN i % 5 = 1 THEN 'Jane Smith ' || i
+        WHEN i % 5 = 2 THEN 'Alex Johnson ' || i
+        WHEN i % 5 = 3 THEN 'Emily Davis ' || i
+        ELSE 'Chris Brown ' || i
+    END,
+    CASE 
+        WHEN i % 5 = 0 THEN 'john.doe' || i || '@example.com'
+        WHEN i % 5 = 1 THEN 'jane.smith' || i || '@example.com'
+        WHEN i % 5 = 2 THEN 'alex.johnson' || i || '@example.com'
+        WHEN i % 5 = 3 THEN 'emily.davis' || i || '@example.com'
+        ELSE 'chris.brown' || i || '@example.com'
+    END,
+    CASE 
+        WHEN i % 2 = 0 THEN 'M'::sex_type 
+        ELSE 'F'::sex_type 
+    END,
+    (i % 4) + 1,
+    'Hostel ' || ((i % 5) + 1),
+    '00:14:22:01:' || LPAD(TO_HEX(i), 2, '0') || ':' || LPAD(TO_HEX(i + 60), 2, '0'),
+    'discord_user_' || i,
+    (i % 8) + 1
+FROM generate_series(1, 60) AS i
+ON CONFLICT (roll_no) DO NOTHING;
+
+
+-- Attendance
+INSERT INTO Attendance (
+    member_id, date, is_present, time_in, time_out
+)
+SELECT 
+    m.member_id,
+    CURRENT_DATE - ((i * 3) % 30),
+    rnd.is_present,
+    CASE WHEN rnd.is_present THEN rnd.time_in ELSE NULL END,
+    CASE WHEN rnd.is_present THEN rnd.time_out ELSE NULL END
+FROM generate_series(1, 600) AS i
+JOIN (
+    SELECT generate_series(1, 60) AS idx, member_id
+    FROM member
+) AS m ON (i % 60) + 1 = m.idx
+JOIN (
+    SELECT 
+        TRUE AS is_present,
+        '08:30'::TIME + (INTERVAL '1 minute' * (random() * 60)) AS time_in,
+        '17:00'::TIME + (INTERVAL '1 minute' * (random() * 60)) AS time_out
+    UNION ALL
+    SELECT FALSE, NULL, NULL
+) AS rnd ON TRUE
+WHERE (random() < 0.75)
+ON CONFLICT (member_id, date) DO NOTHING;
+
+
+-- AttendanceSummary
+INSERT INTO AttendanceSummary (
+    member_id, year, month, days_attended
+)
+SELECT 
+    m.member_id,
+    2025,
+    (i % 12) + 1,
+    FLOOR(random() * 26 + 3)::INT
+FROM generate_series(1, 400) AS i
+JOIN (
+    SELECT generate_series(1, 60) AS idx, member_id
+    FROM member
+) AS m ON (i % 60) + 1 = m.idx
+ON CONFLICT (member_id, year, month) DO NOTHING;
+
+
+-- StatusUpdateStreak
+INSERT INTO StatusUpdateStreak (
+    member_id, current_streak, max_streak
+)
+SELECT 
+    member_id,
+    FLOOR(random() * 10 + 1)::INT,
+    FLOOR(random() * 30 + 10)::INT
+FROM member
+ON CONFLICT (member_id) DO NOTHING;
+
+
+-- Project
+INSERT INTO Project (
+    member_id, title
+)
+SELECT 
+    (i % 60) + 1,
+    CASE
+        WHEN i % 3 = 0 THEN 'Machine Learning Project ' || i
+        WHEN i % 3 = 1 THEN 'Web Development Project ' || i
+        ELSE 'Data Analysis Project ' || i
+    END
+FROM generate_series(1, 200) AS i
+WHERE NOT EXISTS (
+    SELECT 1 FROM Project 
+    WHERE member_id = (i % 60) + 1 AND title = CASE
+        WHEN i % 3 = 0 THEN 'Machine Learning Project ' || i
+        WHEN i % 3 = 1 THEN 'Web Development Project ' || i
+        ELSE 'Data Analysis Project ' || i
+    END
+);
+
+
+-- StatusUpdateHistory
+INSERT INTO StatusUpdateHistory (
+    member_id, date, is_updated
+)
+SELECT 
+    m.member_id,
+    CURRENT_DATE - ((i * 2) % 30),
+    i % 2 = 0
+FROM generate_series(1, 500) AS i
+JOIN (
+    SELECT generate_series(1, 60) AS idx, member_id
+    FROM member
+) AS m ON (i % 60) + 1 = m.idx
+ON CONFLICT (member_id, date) DO NOTHING;

src/main.rs

@@ -8,10 +8,12 @@ use tracing::info;
 use tracing_subscriber::{fmt, layer::SubscriberExt, util::SubscriberInitExt, EnvFilter};
 
 use daily_task::run_daily_task_at_midnight;
+use database_seeder::seed_database;
 use graphql::{Mutation, Query};
 use routes::setup_router;
 
 pub mod daily_task;
+pub mod database_seeder;
 pub mod graphql;
 pub mod models;
 pub mod routes;
@@ -23,6 +25,7 @@ struct Config {
     secret_key: String,
     database_url: String,
     port: String,
+    seeding_enabled: bool,
 }
 
 impl Config {
@@ -33,6 +36,9 @@ impl Config {
             secret_key: std::env::var("ROOT_SECRET").expect("ROOT_SECRET must be set."),
             database_url: std::env::var("DATABASE_URL").expect("DATABASE_URL must be set."),
             port: std::env::var("ROOT_PORT").expect("ROOT_PORT must be set."),
+            seeding_enabled: std::env::var("SEEDING_ENABLED")
+                .map(|v| v.to_lowercase() == "true")
+                .unwrap_or(false),
         }
     }
 }
@@ -45,6 +51,11 @@ async fn main() {
     let pool = setup_database(&config.database_url).await;
     let schema = build_graphql_schema(pool.clone(), config.secret_key);
 
+    if config.seeding_enabled {
+        info!("Seeding database...");
+        seed_database(&pool).await;
+    }
+
     tokio::task::spawn(async {
         run_daily_task_at_midnight(pool).await;
     });