#!/usr/bin/env bash
# 同一条流水线里，前端只构建一次：web-build workflow 构建完把 dist 放到流水线的共享目录，开发镜像的 Backend 步骤直接拿来用。
# 用法：
#   shared-web.sh publish   把 web/display/dist 和 web/admin/dist 放进共享目录（先写临时目录，最后用一次 rename 加上 ready 标记）
#   shared-web.sh fetch     等 ready 标记出现（最多 MOSHIRO_SHARED_WEB_WAIT 秒，默认 600），再复制回工作区；
#                           退出码 0 = 已复制，1 = 没等到或流水线已经失败（调用方自己构建兜底）
# 共享目录和 ci/guard-step.py 用的是同一个：${MOSHIRO_CI_STATE}/${CI_REPO_ID}-${CI_PIPELINE_NUMBER}。
set -euo pipefail

root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
state="${MOSHIRO_CI_STATE:-/home/justme/woodpecker/cache/pipeline-state}/${CI_REPO_ID:-0}-${CI_PIPELINE_NUMBER:-0}"
shared="$state/web-dist"
apps=(display admin)

case "${1:-}" in
  publish)
    mkdir -p "$state"
    tmp="$state/web-dist.tmp.$$"
    rm -rf "$tmp" "$shared"
    for app in "${apps[@]}"; do
      [[ -f "$root/web/$app/dist/index.html" ]] || { echo "web/$app/dist is missing" >&2; exit 1; }
      mkdir -p "$tmp/$app"
      cp -a "$root/web/$app/dist/." "$tmp/$app/"
    done
    mv "$tmp" "$shared"
    ;;
  fetch)
    deadline=$((SECONDS + ${MOSHIRO_SHARED_WEB_WAIT:-600}))
    until [[ -f "$shared/display/index.html" && -f "$shared/admin/index.html" ]]; do
      if [[ -e "$state/failed" ]]; then echo "the pipeline already failed; no shared web build" >&2; exit 1; fi
      if ((SECONDS >= deadline)); then echo "the shared web build did not appear in time" >&2; exit 1; fi
      sleep 2
    done
    for app in "${apps[@]}"; do
      rm -rf "$root/web/$app/dist"
      mkdir -p "$root/web/$app/dist"
      cp -a "$shared/$app/." "$root/web/$app/dist/"
    done
    ;;
  *)
    echo "usage: shared-web.sh publish|fetch" >&2
    exit 2
    ;;
esac