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

# Canonical resources+docs generator (template format).
# Restores instruction-style docs structure (manual/example/params_create/params_modify/outputs/ops/params landing).

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ROOT_DIR="${ROOT_DIR:-$(cd "${SCRIPT_DIR}/.." && pwd)}"
PROVIDER_DIR="${ROOT_DIR}/universal_rebuild"
PROFILE_DIR="${PROFILE_DIR:-}"

resolve_root_path() {
  local path_value="$1"
  if [[ -z "$path_value" ]]; then
    echo ""
    return
  fi
  if [[ "$path_value" = /* ]]; then
    echo "$path_value"
    return
  fi
  echo "${ROOT_DIR}/${path_value}"
}

if [[ "${1:-}" == "--profile" ]]; then
  PROFILE_DIR="${2:-}"
  shift 2
fi

if [[ -n "$PROFILE_DIR" ]]; then
  if [[ ! -d "$PROFILE_DIR" ]]; then
    echo "Error: profile directory not found: $PROFILE_DIR" >&2
    exit 2
  fi
  PROFILE_ENV_FILE="${PROFILE_DIR}/profile.env"
  if [[ -f "$PROFILE_ENV_FILE" ]]; then
    set -a
    # shellcheck disable=SC1090
    source "$PROFILE_ENV_FILE"
    set +a
  fi
fi

if [[ -z "$PROFILE_DIR" ]]; then
  echo "Error: --profile <path> is required. Strict mode stores generated files per stand only." >&2
  exit 2
fi

PROFILE_DIR="$(resolve_root_path "$PROFILE_DIR")"

RESOURCES_YAML_DIR_DEFAULT="${PROFILE_DIR}/generated/resources_yaml"
DOCS_DIR_DEFAULT="${PROFILE_DIR}/generated/docs"
SERVICES_LIST_PATH_DEFAULT="${PROFILE_DIR}/services_list.txt"
GO_OUTPUT_DIR_DEFAULT="${PROFILE_DIR}/generated/go"

RESOURCES_YAML_DIR="${RESOURCES_YAML_DIR:-$RESOURCES_YAML_DIR_DEFAULT}"
DOCS_DIR="${DOCS_DIR:-$DOCS_DIR_DEFAULT}"
SERVICES_LIST_PATH="${SERVICES_LIST_PATH:-$SERVICES_LIST_PATH_DEFAULT}"
GO_OUTPUT_DIR="${GO_OUTPUT_DIR:-$GO_OUTPUT_DIR_DEFAULT}"

RESOURCES_YAML_DIR="$(resolve_root_path "$RESOURCES_YAML_DIR")"
DOCS_DIR="$(resolve_root_path "$DOCS_DIR")"
SERVICES_LIST_PATH="$(resolve_root_path "$SERVICES_LIST_PATH")"
GO_OUTPUT_DIR="$(resolve_root_path "$GO_OUTPUT_DIR")"

if [[ ! -d "$RESOURCES_YAML_DIR" ]]; then
  echo "Error: resources yaml directory not found: $RESOURCES_YAML_DIR" >&2
  exit 2
fi

if [[ ! -f "$SERVICES_LIST_PATH" ]]; then
  echo "Error: services list not found: $SERVICES_LIST_PATH" >&2
  exit 2
fi

cd "$PROVIDER_DIR"

echo "Generating resources from unified YAML specs..."
TMP_GEN_DIR="$(mktemp -d)"
trap 'rm -rf "$TMP_GEN_DIR"' EXIT

NUBES_RESOURCES_DIR="$RESOURCES_YAML_DIR" \
NUBES_RESOURCES_GEN_DIR="$TMP_GEN_DIR" \
go run ./tools/gen_v2

mkdir -p "$GO_OUTPUT_DIR"
rm -rf "${GO_OUTPUT_DIR}"/*
cp -R "$TMP_GEN_DIR/." "$GO_OUTPUT_DIR/"

echo "Generating docs via template generator..."
mkdir -p "$DOCS_DIR"
go run ./tools/docs_template_gen_v2 \
  -resources "$RESOURCES_YAML_DIR" \
  -docs "$DOCS_DIR" \
  -services "$SERVICES_LIST_PATH" \
  -exclude "clickhouse"

echo "Resources and docs generated in template format."