#!/usr/bin/env bun

const repo = "anomalyco/opencode"
const days = 60
const msg = `To stay organized issues are automatically closed after ${days} days of no activity. If the issue is still relevant please open a new one.`

const token = process.env.GITHUB_TOKEN
if (!token) {
 console.error("GITHUB_TOKEN environment variable is required")
 process.exit(1)
}

const cutoff = new Date(Date.now() - days * 24 * 60 * 60 * 1000)

type Issue = {
 number: number
 updated_at: string
}

const headers = {
 Authorization: `Bearer ${token}`,
 "Content-Type": "application/json",
 Accept: "application/vnd.github+json",
 "X-GitHub-Api-Version": "2022年11月28日",
}

async function close(num: number) {
 const base = `https://api.github.com/repos/${repo}/issues/${num}`

 const comment = await fetch(`${base}/comments`, {
 method: "POST",
 headers,
 body: JSON.stringify({ body: msg }),
 })
 if (!comment.ok) throw new Error(`Failed to comment #${num}: ${comment.status}${comment.statusText}`)

 const patch = await fetch(base, {
 method: "PATCH",
 headers,
 body: JSON.stringify({ state: "closed", state_reason: "not_planned" }),
 })
 if (!patch.ok) throw new Error(`Failed to close #${num}: ${patch.status}${patch.statusText}`)

 console.log(`Closed https://github.com/${repo}/issues/${num}`)
}

async function main() {
 let page = 1
 let closed = 0

 while (true) {
 const res = await fetch(
 `https://api.github.com/repos/${repo}/issues?state=open&sort=updated&direction=asc&per_page=100&page=${page}`,
 { headers },
 )
 if (!res.ok) throw new Error(res.statusText)

 const all = (await res.json()) as Issue[]
 if (all.length === 0) break
 console.log(`Fetched page ${page}${all.length} issues`)

 const stale: number[] = []
 for (const i of all) {
 const updated = new Date(i.updated_at)
 if (updated < cutoff) {
 stale.push(i.number)
 } else {
 console.log(`\nFound fresh issue #${i.number}, stopping`)
 if (stale.length > 0) {
 for (const num of stale) {
 await close(num)
 closed++
 }
 }
 console.log(`Closed ${closed} issues total`)
 return
 }
 }

 if (stale.length > 0) {
 for (const num of stale) {
 await close(num)
 closed++
 }
 }

 page++
 }

 console.log(`Closed ${closed} issues total`)
}

main().catch((err) => {
 console.error("Error:", err)
 process.exit(1)
})