feat: init

.github/workflows/ci.yml

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+name: Code quality
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  quality:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Biome
+        uses: biomejs/setup-biome@v2
+        with:
+          version: latest
+      - name: Run Biome
+        run: biome ci .

.gitignore

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+# Logs
+
+logs
+_.log
+npm-debug.log_
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# Runtime data
+
+pids
+_.pid
+_.seed
+\*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+
+lib-cov
+
+# Coverage directory used by tools like istanbul
+
+coverage
+\*.lcov
+
+# nyc test coverage
+
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+
+bower_components
+
+# node-waf configuration
+
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+
+build/Release
+
+# Dependency directories
+
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+
+web_modules/
+
+# TypeScript cache
+
+\*.tsbuildinfo
+
+# Optional npm cache directory
+
+.npm
+
+# Optional eslint cache
+
+.eslintcache
+
+# Optional stylelint cache
+
+.stylelintcache
+
+# Microbundle cache
+
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+
+.node_repl_history
+
+# Output of 'npm pack'
+
+\*.tgz
+
+# Yarn Integrity file
+
+.yarn-integrity
+
+# dotenv environment variable files
+
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+
+.cache
+.parcel-cache
+
+# Next.js build output
+
+.next
+out
+
+# Nuxt.js build / generate output
+
+.nuxt
+dist
+
+# Gatsby files
+
+.cache/
+
+# Comment in the public line in if your project uses Gatsby and not Next.js
+
+# https://nextjs.org/blog/next-9-1#public-directory-support
+
+# public
+
+# vuepress build output
+
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+
+.temp
+.cache
+
+# Docusaurus cache and generated files
+
+.docusaurus
+
+# Serverless directories
+
+.serverless/
+
+# FuseBox cache
+
+.fusebox/
+
+# DynamoDB Local files
+
+.dynamodb/
+
+# TernJS port file
+
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+
+.vscode-test
+
+# yarn v2
+
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.\*
+
+# wrangler project
+
+.dev.vars
+.wrangler/
+worker-configuration.d.ts
+assets/built.css

assets/theme.js

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+;(() => {
+	const v = localStorage.getItem('color-scheme')
+	const a = window.matchMedia('(prefers-color-scheme: dark)').matches
+	const cl = document.documentElement.classList
+	const setColorScheme = (v) =>
+		(!v || v === 'auto' ? a : v === 'dark') ? cl.add('dark') : cl.remove('dark')
+	setColorScheme(v)
+	window.setColorScheme = (v) => {
+		setColorScheme(v)
+		localStorage.setItem('color-scheme', v)
+	}
+	window.toggleColorScheme = () => {
+		const cl = document.documentElement.classList
+		const currentScheme = cl.contains('dark') ? 'light' : 'dark'
+		cl.toggle('dark')
+		localStorage.setItem('color-scheme', currentScheme)
+	}
+})()

biome.json

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+{
+	"$schema": "https://biomejs.dev/schemas/1.5.3/schema.json",
+	"organizeImports": {
+		"enabled": true
+	},
+	"vcs": {
+		"enabled": true,
+		"clientKind": "git"
+	},
+	"javascript": {
+		"formatter": {
+			"enabled": true,
+			"quoteStyle": "single",
+			"semicolons": "asNeeded",
+			"trailingComma": "none"
+		}
+	},
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true
+		}
+	},
+	"formatter": {
+		"enabled": true,
+		"lineWidth": 80
+	},
+	"css": {
+		"formatter": {
+			"enabled": true
+		}
+	}
+}

lefthook.yml

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+pre-commit:
+  parallel: true
+  commands:
+    check:
+      glob: '*.{js,ts,cjs,mjs,d.cts,d.mts,jsx,tsx,json,jsonc}'
+      run:
+        bunx biome check --apply --no-errors-on-unmatched
+        --files-ignore-unknown=true {staged_files} && git update-index --again

migrations/0000_create_events_and_probe_statuses_tables.sql

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+-- Migration number: 0000
+
+CREATE TABLE events (
+    id INTEGER PRIMARY KEY,
+    created_at TEXT NOT NULL,
+    probe_id TEXT,
+    webhook_id TEXT,
+    duration INTEGER,
+    result TEXT NOT NULL,
+    category TEXT NOT NULL,
+    description TEXT
+) STRICT;
+
+CREATE TABLE probe_statuses (
+    id TEXT PRIMARY KEY,
+    last_result TEXT NOT NULL,
+    last_started_at TEXT NOT NULL,
+    last_success_at TEXT,
+    last_failure_at TEXT,
+    same_result_since TEXT
+) STRICT;
+

migrations/0001_create_log_lines_table.sql

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+CREATE TABLE log_lines (
+    id INTEGER PRIMARY KEY,
+    created_at TEXT NOT NULL,
+    level TEXT NOT NULL,
+    message TEXT NOT NULL
+) STRICT;
+

package.json

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+{
+  "name": "simulation",
+  "version": "1.0.0",
+  "private": true,
+  "scripts": {
+    "db:insights": "wrangler d1 insights simulation",
+    "db:migrate:local": "wrangler d1 migrations apply --local simulation",
+    "db:migrate:prod": "wrangler d1 migrations apply simulation",
+    "deploy": "wrangler deploy",
+    "dev": "wrangler dev",
+    "postinstall": "wrangler types && lefthook install",
+    "tail": "wrangler tail",
+    "typecheck": "wrangler types && tsc"
+  },
+  "dependencies": {
+    "clsx": "^2.1.0",
+    "d1-sql-tag": "^0.3.0",
+    "hono": "^3.11.2"
+  },
+  "devDependencies": {
+    "@biomejs/biome": "1.5.3",
+    "@cloudflare/workers-types": "^4.20240208.0",
+    "lefthook": "^1.6.1",
+    "tailwindcss": "^3.4.1",
+    "typescript": "^5.3.3",
+    "wrangler": "^3.28.1"
+  }
+}

src/db/conversion.ts

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+export function convertDate(date: string): Date
+export function convertDate(date: string | null): Date | null
+export function convertDate(date: string | null) {
+	return date ? new Date(date) : null
+}

src/db/schema.ts

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+type Brand<K, T> = K & { __brand: T }
+
+export type EventId = Brand<number, 'EventId'>
+export type LogLineId = Brand<number, 'LogLineId'>
+export type ProbeId = Brand<string, 'ProbeId'>
+export type WebhookId = Brand<string, 'WebhookId'>
+
+export interface DatabaseSchema {
+	events: {
+		id: EventId
+		created_at: string
+		probe_id: ProbeId | null
+		webhook_id: WebhookId | null
+		duration: number | null
+		result: 'success' | 'failure'
+		category: string
+		description: string | null
+	}
+
+	log_lines: {
+		id: LogLineId
+		created_at: string
+		level: 'info' | 'warn' | 'error'
+		message: string
+	}
+
+	probe_statuses: {
+		id: ProbeId
+		last_started_at: string
+		last_result: 'success' | 'failure' | ''
+		last_success_at: string | null
+		last_failure_at: string | null
+		same_result_since: string | null
+	}
+}

src/db/sql-tag.ts

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+import { createD1SqlTag, logQueryResults } from 'd1-sql-tag'
+import { type Context } from 'hono'
+import { endTime, setMetric, startTime } from 'hono/timing'
+import type { Bindings } from '..'
+
+export function createSqlTag(c: Context<{ Bindings: Bindings }>) {
+	return createD1SqlTag(c.env.DB, {
+		beforeQuery(batchId, queries) {
+			startTime(c, `db-${batchId}`)
+		},
+		afterQuery(batchId, queries, results, duration) {
+			endTime(c, `db-${batchId}`)
+			results.forEach((result, i) => {
+				setMetric(c, `db-${batchId}-query-${i + 1}`, result.meta.duration)
+			})
+			logQueryResults(queries, results, duration)
+		}
+	})
+}
+
+export function createCronSqlTag(env: Bindings) {
+	return createD1SqlTag(env.DB, {
+		afterQuery(batchId, queries, results, duration) {
+			logQueryResults(queries, results, duration)
+		}
+	})
+}