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// @ts-nocheck

import fs from 'fs'

import path from 'node:path'

import { globSync } from 'node:fs'

import { execSync, execFileSync } from 'node:child_process'

import { tmpdir } from 'node:os'

const rootDir = path.join(import.meta.dirname, '..')

const ghToken = process.env.GH_TOKEN || process.env.GITHUB_TOKEN

// Resolve GitHub usernames from commit author emails

const usernameCache = {}

async function resolveUsername(email) {

if (!ghToken || !email) return null

if (usernameCache[email] !== undefined) return usernameCache[email]

try {

const res = await fetch(`https://api.github.com/search/users?q=${email}`, {

headers: { Authorization: `token ${ghToken}` },

})

const data = await res.json()

const login = data?.items?.[0]?.login || null

usernameCache[email] = login

return login

} catch {

usernameCache[email] = null

return null

}

}

// Resolve author from a PR number via GitHub API

const prAuthorCache = {}

async function resolveAuthorForPR(prNumber) {

if (prAuthorCache[prNumber] !== undefined) return prAuthorCache[prNumber]

if (!ghToken) {

prAuthorCache[prNumber] = null

return null

}

try {

const res = await fetch(

`https://api.github.com/repos/TanStack/router/pulls/${prNumber}`,

{ headers: { Authorization: `token ${ghToken}` } },

)

const data = await res.json()

const login = data?.user?.login || null

prAuthorCache[prNumber] = login

return login

} catch {

prAuthorCache[prNumber] = null

return null

}

}

// Get the previous release commit to diff against.

// This script runs right after the "ci: Version Packages" PR is merged,

// so HEAD is the release commit.

const releaseLogs = execSync(

'git log --oneline --grep="^ci: Version Packages" --grep="^ci: changeset release" --format=%H',

)

.toString()

.trim()

.split('\n')

.filter(Boolean)

const currentRelease = releaseLogs[0] || 'HEAD'

const previousRelease = releaseLogs[1]

// Find packages that were actually bumped by comparing versions

const packagesDir = path.join(rootDir, 'packages')

const allPkgJsonPaths = globSync('*/package.json', { cwd: packagesDir })

const bumpedPackages = []

for (const relPath of allPkgJsonPaths) {

const fullPath = path.join(packagesDir, relPath)

const currentPkg = JSON.parse(fs.readFileSync(fullPath, 'utf-8'))

if (currentPkg.private) continue

// Get the version from the previous release commit

if (previousRelease) {

try {

const prevContent = execFileSync(

'git',

['show', `${previousRelease}:packages/${relPath}`],

{ encoding: 'utf-8', stdio: ['pipe', 'pipe', 'ignore'] },

)

const prevPkg = JSON.parse(prevContent)

if (prevPkg.version !== currentPkg.version) {

bumpedPackages.push({

name: currentPkg.name,

version: currentPkg.version,

prevVersion: prevPkg.version,

dir: path.dirname(relPath),

})

}

} catch {

// Package didn't exist in previous release — it's new

bumpedPackages.push({

name: currentPkg.name,

version: currentPkg.version,

prevVersion: null,

dir: path.dirname(relPath),

})

}

} else {

// No previous release — include all non-private packages

bumpedPackages.push({

name: currentPkg.name,

version: currentPkg.version,

prevVersion: null,

dir: path.dirname(relPath),

})

}

}

bumpedPackages.sort((a, b) => a.name.localeCompare(b.name))

// Build changelog from git log between releases (conventional commits)

const rangeFrom = previousRelease || `${currentRelease}~1`

const rawLog = execSync(

`git log ${rangeFrom}..${currentRelease} --pretty=format:"%h %ae %s" --no-merges`,

{ encoding: 'utf-8' },

).trim()

const typeOrder = [

'breaking',

'feat',

'fix',

'perf',

'refactor',

'docs',

'chore',

'test',

'ci',

]

const typeLabels = {

breaking: '⚠️ Breaking Changes',

feat: 'Features',

fix: 'Fix',

perf: 'Performance',

refactor: 'Refactor',

docs: 'Documentation',

chore: 'Chore',

test: 'Tests',

ci: 'CI',

}

const typeIndex = (t) => {

const i = typeOrder.indexOf(t)

return i === -1 ? 99 : i

}

const groups = {}

const commits = rawLog ? rawLog.split('\n') : []

for (const line of commits) {

const match = line.match(/^(\w+)\s+(\S+)\s+(.*)$/)

if (!match) continue

const [, hash, email, subject] = match

// Skip release commits

if (

subject.startsWith('ci: Version Packages') ||

subject.startsWith('ci: changeset release')

)

continue

// Parse conventional commit: type(scope)!: message

const conventionalMatch = subject.match(/^(\w+)(?:\(([^)]*)\))?(!)?:\s*(.*)$/)

const type = conventionalMatch ? conventionalMatch[1] : 'other'

const isBreaking = conventionalMatch ? !!conventionalMatch[3] : false

const scope = conventionalMatch ? conventionalMatch[2] || '' : ''

const message = conventionalMatch ? conventionalMatch[4] : subject

// Only include user-facing change types

if (!['chore', 'feat', 'fix', 'perf', 'refactor', 'build'].includes(type))

continue

// Extract PR number if present

const prMatch = message.match(/\(#(\d+)\)/)

const prNumber = prMatch ? prMatch[1] : null

const bucket = isBreaking ? 'breaking' : type

if (!groups[bucket]) groups[bucket] = []

groups[bucket].push({ hash, email, scope, message, prNumber })

}

// Build markdown grouped by conventional commit type

const sortedTypes = Object.keys(groups).sort(

(a, b) => typeIndex(a) - typeIndex(b),

)

let changelogMd = ''

for (const type of sortedTypes) {

const label = typeLabels[type] || type.charAt(0).toUpperCase() + type.slice(1)

changelogMd += `### ${label}\n\n`

for (const commit of groups[type]) {

const scopePrefix = commit.scope ? `${commit.scope}: ` : ''

const cleanMessage = commit.message.replace(/\s*\(#\d+\)/, '')

const prRef = commit.prNumber ? ` (#${commit.prNumber})` : ''

const username = commit.prNumber

? await resolveAuthorForPR(commit.prNumber)

: await resolveUsername(commit.email)

const authorSuffix = username ? ` by @${username}` : ''

changelogMd += `- ${scopePrefix}${cleanMessage}${prRef} (${commit.hash})${authorSuffix}\n`

}

changelogMd += '\n'

}

if (!changelogMd.trim()) {

changelogMd = '- No changelog entries\n\n'

}

const now = new Date()

const date = now.toISOString().slice(0, 10)

const time = now.toISOString().slice(11, 16).replace(':', '')

const tagName = `release-${date}-${time}`

const titleDate = `${date} ${now.toISOString().slice(11, 16)}`

const isPrerelease = process.argv.includes('--prerelease')

const isLatest = process.argv.includes('--latest')

const body = `Release ${titleDate}

## Changes

${changelogMd}

## Packages

${bumpedPackages.map((p) => `- ${p.name}@${p.version}`).join('\n')}

`

// Create the release

// Check if tag already exists — if so, try to create the release for it

// (handles retries where the tag was pushed but release creation failed)

let tagExists = false

try {

execSync(`git rev-parse ${tagName}`, { stdio: 'ignore' })

tagExists = true

} catch {

// Tag doesn't exist yet

}

if (!tagExists) {

execSync(`git tag -a -m "${tagName}" ${tagName}`)

execSync('git push --tags')

}

const prereleaseFlag = isPrerelease ? '--prerelease' : ''

const latestFlag = isLatest ? ' --latest' : ''

const tmpFile = path.join(tmpdir(), `release-notes-${tagName}.md`)

fs.writeFileSync(tmpFile, body)

try {

execSync(

`gh release create ${tagName} ${prereleaseFlag} --title "Release ${titleDate}" --notes-file ${tmpFile}${latestFlag}`,

{ stdio: 'inherit' },

)

console.info(`GitHub release ${tagName} created.`)

} catch (err) {

// Clean up the tag if we created it but release failed

if (!tagExists) {

console.info(`Release creation failed, cleaning up tag ${tagName}...`)

try {

execSync(`git push --delete origin ${tagName}`, { stdio: 'ignore' })

execSync(`git tag -d ${tagName}`, { stdio: 'ignore' })

} catch {

// Best effort cleanup

}

}

throw err

} finally {

fs.unlinkSync(tmpFile)

}