import process from "node:process"
import dotenv from "dotenv"
import { ConvexHttpClient } from "convex/browser"
import { makeFunctionReference } from "convex/server"

const LIST_MANUALS = makeFunctionReference("manuals:list")

function canonicalizeDomain(input) {
  return String(input || "")
    .trim()
    .toLowerCase()
    .replace(/^https?:\/\//, "")
    .replace(/^\/\//, "")
    .replace(/\/.*$/, "")
    .replace(/:\d+$/, "")
    .replace(/\.$/, "")
}

function parseArgs(argv) {
  const domainIndex = argv.indexOf("--domain")
  const domain = domainIndex >= 0 ? argv[domainIndex + 1] : ""
  const minCountIndex = argv.indexOf("--min-count")
  const minCount =
    minCountIndex >= 0
      ? Number.parseInt(argv[minCountIndex + 1] || "", 10)
      : 1

  return {
    domain,
    minCount: Number.isFinite(minCount) && minCount > 0 ? minCount : 1,
  }
}

function readConvexUrl() {
  const value =
    process.env.NEXT_PUBLIC_CONVEX_URL || process.env.CONVEX_URL || ""
  return value.trim()
}

async function main() {
  dotenv.config({ path: ".env.local", override: false })
  dotenv.config({ path: ".env.staging", override: false })

  const args = parseArgs(process.argv.slice(2))
  const domain = canonicalizeDomain(
    args.domain ||
      process.env.MANUALS_TENANT_DOMAIN ||
      process.env.NEXT_PUBLIC_SITE_DOMAIN
  )
  const convexUrl = readConvexUrl()

  if (!convexUrl) {
    throw new Error(
      "NEXT_PUBLIC_CONVEX_URL (or CONVEX_URL) is required for Convex manuals gate."
    )
  }

  if (!domain) {
    throw new Error(
      "A tenant domain is required. Set NEXT_PUBLIC_SITE_DOMAIN / MANUALS_TENANT_DOMAIN or pass --domain."
    )
  }

  const convex = new ConvexHttpClient(convexUrl)
  const manuals = await convex.query(LIST_MANUALS, { domain })
  const count = Array.isArray(manuals) ? manuals.length : 0

  console.log(
    `[convex-manuals-gate] domain=${domain} count=${count} min=${args.minCount}`
  )

  if (count < args.minCount) {
    throw new Error(
      `Convex manuals gate failed for ${domain}: expected at least ${args.minCount} manuals, got ${count}.`
    )
  }
}

main().catch((error) => {
  console.error("[convex-manuals-gate] failed", error)
  process.exit(1)
})