#!/usr/bin/env bash
set -euo pipefail

if [[ -z "${HOME:-}" ]]; then
  export HOME="$(getent passwd "$(id -u)" | cut -d: -f6 2>/dev/null || true)"
fi

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

: "${OPENCODE_BOOTSTRAP:=1}"
: "${OMO_AUTO_INSTALL:=0}"
: "${ACP_AUTO_START:=0}"
: "${OPENCODE_RUNTIME_MODE:=acp}"
: "${CONTAINER_WORKSPACE:=/workspace}"
: "${CONTAINER_CACHE:=/cache}"
: "${KEEPALIVE_COMMAND:=sleep infinity}"
: "${OPENCODE_INSTALL_DIR:=$HOME/.local/share/opencode}"
: "${OPENCODE_NPM_BIN_DIR:=$HOME/.local/bin}"
: "${OPENCODE_CONFIG_DIR:=$HOME/.config/opencode}"
: "${OMO_INSTALL_DIR:=$HOME/.local/share/oh-my-opencode}"

export OPENCODE_CONFIG_DIR OPENCODE_INSTALL_DIR OPENCODE_NPM_BIN_DIR OMO_INSTALL_DIR
export PATH="/opt/bun/bin:${OPENCODE_NPM_BIN_DIR}:${HOME}/.local/bin:${PATH:-/usr/local/bin:/usr/bin:/bin}"

mkdir -p \
  "${CONTAINER_WORKSPACE}" \
  "${CONTAINER_CACHE}" \
  "$HOME/.config/opencode" \
  "$HOME/.agents" \
  "$HOME/.claude" \
  "$HOME/.opencode" \
  "$HOME/.local/share/opencode" \
  "$HOME/.local/share/oh-my-opencode" \
  "$HOME/.local/bin" \
  "$HOME/.cache"

sample_user_config="$HOME/.config/opencode/opencode.user.sample.json"
if [[ ! -f "${sample_user_config}" ]]; then
  cat > "${sample_user_config}" <<'EOF'
{
  "plugin": [
    "your-plugin-name"
  ],
  "provider": {
    "mimo": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "Mimo",
      "options": {
        "baseURL": "{env:OPENAI_BASE_URL}",
        "apiKey": "{env:OPENAI_API_KEY}"
      },
      "models": {
        "mimo-v2.5": {
          "name": "mimo-v2.5"
        }
      }
    }
  }
}
EOF
fi

log() {
  printf '[entrypoint] %s\n' "$*"
}

for dir in \
  "${CONTAINER_WORKSPACE}" \
  "${CONTAINER_CACHE}" \
  "$HOME/.config" \
  "$HOME/.agents" \
  "$HOME/.claude" \
  "$HOME/.opencode" \
  "$HOME/.local/share"; do
  if [[ -d "$dir" && ! -w "$dir" ]]; then
    log "mount not writable for current user: $dir"
  fi
done

if [[ "${OPENCODE_BOOTSTRAP}" == "1" ]]; then
  log "bootstrapping OpenCode userland"
  "${SCRIPT_DIR}/bootstrap-opencode-userland.sh"
  log "installing OpenCode plugins and config hooks"
  "${SCRIPT_DIR}/install-opencode-plugins.sh"
fi

if [[ "${OMO_AUTO_INSTALL}" == "1" ]]; then
  log "installing or refreshing oh-my-opencode"
  "${SCRIPT_DIR}/install-oh-my-opencode.sh"
fi

log "runtime versions"
command -v node >/dev/null && node --version || true
command -v npm >/dev/null && npm --version || true
command -v bun >/dev/null && bun --version || true
command -v opencode >/dev/null && opencode --version || true

if [[ "${ACP_AUTO_START}" == "1" ]]; then
  log "starting OpenCode runtime in background (mode=${OPENCODE_RUNTIME_MODE})"
  "${SCRIPT_DIR}/start-opencode-runtime.sh" &
fi

case "${1:-shell}" in
  shell)
    log "keeping container alive via: ${KEEPALIVE_COMMAND}"
    exec bash -lc "${KEEPALIVE_COMMAND}"
    ;;
  doctor)
    exec "${SCRIPT_DIR}/doctor.sh"
    ;;
  smoke)
    exec "${SCRIPT_DIR}/smoke-test.sh"
    ;;
  runtime)
    exec "${SCRIPT_DIR}/start-opencode-runtime.sh"
    ;;
  *)
    exec "$@"
    ;;
esac