#!/usr/bin/env bash
# Copyright (c) Microsoft Corporation.
# SPDX-License-Identifier: MIT
#
# on-create.sh
# Install system dependencies for HVE Core development container

set -euo pipefail

main() {
  # Enterprise artifact hub overrides (public defaults when unset)
  GITHUB_RELEASES_URL="${HVE_GITHUB_RELEASES_URL:-https://github.com}"
  PSGALLERY_REPO="${HVE_PSGALLERY_REPOSITORY:-PSGallery}"
  PSGALLERY_SOURCE="${HVE_PSGALLERY_SOURCE_URL:-}"

  echo "Installing system dependencies..."
  
  sudo apt update
  sudo apt install -y shellcheck
  
  # Dependencies are pinned for stability. Dependabot and security workflows manage updates.
  echo "Installing actionlint..."
  ACTIONLINT_VERSION="1.7.10"
  ARCH=$(uname -m)
  if [[ "${ARCH}" == "x86_64" ]]; then
    ACTIONLINT_ARCH="amd64"
    ACTIONLINT_SHA256="f4c76b71db5755a713e6055cbb0857ed07e103e028bda117817660ebadb4386f"
  elif [[ "${ARCH}" == "aarch64" ]]; then
    ACTIONLINT_ARCH="arm64"
    ACTIONLINT_SHA256="cd3dfe5f66887ec6b987752d8d9614e59fd22f39415c5ad9f28374623f41773a"
  else
    echo "ERROR: Unsupported architecture: ${ARCH}" >&2
    exit 1
  fi
  curl -sSfL "${GITHUB_RELEASES_URL}/rhysd/actionlint/releases/download/v${ACTIONLINT_VERSION}/actionlint_${ACTIONLINT_VERSION}_linux_${ACTIONLINT_ARCH}.tar.gz" -o /tmp/actionlint.tar.gz

  echo "Checking actionlint tarball integrity..."
  if ! echo "${ACTIONLINT_SHA256}  /tmp/actionlint.tar.gz" | sha256sum -c --quiet -; then
    echo "ERROR: SHA256 checksum verification failed for actionlint tarball" >&2
    rm /tmp/actionlint.tar.gz
    exit 1
  fi
  sudo tar -xzf /tmp/actionlint.tar.gz -C /usr/local/bin actionlint
  rm /tmp/actionlint.tar.gz

  echo "Installing PowerShell modules..."
  if [[ -n "${PSGALLERY_SOURCE}" ]]; then
    PSGALLERY_REPO="${PSGALLERY_REPO}" PSGALLERY_SOURCE="${PSGALLERY_SOURCE}" \
      pwsh -NoProfile -Command 'Register-PSRepository -Name $env:PSGALLERY_REPO -SourceLocation $env:PSGALLERY_SOURCE -InstallationPolicy Trusted -ErrorAction SilentlyContinue'
  fi
  PSGALLERY_REPO="${PSGALLERY_REPO}" pwsh -NoProfile -Command 'Install-Module -Name PowerShell-Yaml -RequiredVersion 0.4.7 -Force -Scope CurrentUser -Repository $env:PSGALLERY_REPO'
  PSGALLERY_REPO="${PSGALLERY_REPO}" pwsh -NoProfile -Command 'Install-Module -Name PSScriptAnalyzer -RequiredVersion 1.25.0 -Force -Scope CurrentUser -Repository $env:PSGALLERY_REPO'
  PSGALLERY_REPO="${PSGALLERY_REPO}" pwsh -NoProfile -Command 'Install-Module -Name Pester -RequiredVersion 5.7.1 -Force -Scope CurrentUser -Repository $env:PSGALLERY_REPO'

  echo "Installing gitleaks..."
  # Download gitleaks tarball and verify checksum before extracting
  GITLEAKS_VERSION="8.18.2"
  if [[ "${ARCH}" == "x86_64" ]]; then
    GITLEAKS_ARCH="x64"
    GITLEAKS_SHA256="6298c9235dfc9278c14b28afd9b7fa4e6f4a289cb1974bd27949fc1e9122bdee"
  elif [[ "${ARCH}" == "aarch64" ]]; then
    GITLEAKS_ARCH="arm64"
    GITLEAKS_SHA256="4df25683f95b9e1dbb8cc71dac74d10067b8aba221e7f991e01cafa05bcbd030"
  else
    echo "ERROR: Unsupported architecture for gitleaks: ${ARCH}" >&2
    exit 1
  fi
  curl -sSfL "${GITHUB_RELEASES_URL}/gitleaks/gitleaks/releases/download/v${GITLEAKS_VERSION}/gitleaks_${GITLEAKS_VERSION}_linux_${GITLEAKS_ARCH}.tar.gz" -o /tmp/gitleaks.tar.gz
  
  echo "Checking gitleaks tarball integrity..."
  if ! echo "${GITLEAKS_SHA256}  /tmp/gitleaks.tar.gz" | sha256sum -c --quiet -; then
    echo "ERROR: SHA256 checksum verification failed for gitleaks tarball" >&2
    rm /tmp/gitleaks.tar.gz
    exit 1
  fi
  sudo tar -xzf /tmp/gitleaks.tar.gz -C /usr/local/bin gitleaks
  rm /tmp/gitleaks.tar.gz

  echo "Installing cosign..."
  COSIGN_VERSION="3.0.5"
  if [[ "${ARCH}" == "x86_64" ]]; then
    COSIGN_ARCH="amd64"
    COSIGN_SHA256="db15cc99e6e4837daabab023742aaddc3841ce57f193d11b7c3e06c8003642b2"
  elif [[ "${ARCH}" == "aarch64" ]]; then
    COSIGN_ARCH="arm64"
    COSIGN_SHA256="d098f3168ae4b3aa70b4ca78947329b953272b487727d1722cb3cb098a1a20ab"
  else
    echo "ERROR: Unsupported architecture for cosign: ${ARCH}" >&2
    exit 1
  fi
  curl -sSfL "${GITHUB_RELEASES_URL}/sigstore/cosign/releases/download/v${COSIGN_VERSION}/cosign-linux-${COSIGN_ARCH}" -o /tmp/cosign

  echo "Checking cosign binary integrity..."
  if ! echo "${COSIGN_SHA256}  /tmp/cosign" | sha256sum -c --quiet -; then
    echo "ERROR: SHA256 checksum verification failed for cosign binary" >&2
    rm /tmp/cosign
    exit 1
  fi
  sudo install /tmp/cosign /usr/local/bin/cosign
  rm /tmp/cosign

  echo "Installing uv package manager..."
  # Dependencies are pinned for stability. Dependabot and security workflows manage updates.
  UV_VERSION="0.10.8"
  if [[ "${ARCH}" == "x86_64" ]]; then
    UV_ARCH="x86_64-unknown-linux-gnu"
    UV_SHA256="f0c566b55683395a62fefb9261a060fa09824914b5682c3b9629fa154762ae2f"
  elif [[ "${ARCH}" == "aarch64" ]]; then
    UV_ARCH="aarch64-unknown-linux-gnu"
    UV_SHA256="661860e954f87dcd823251191866af3486484d1a9df60eed56f4586ed7559e3d"
  else
    echo "ERROR: Unsupported architecture for uv: ${ARCH}" >&2
    exit 1
  fi
  curl -sSfL "${GITHUB_RELEASES_URL}/astral-sh/uv/releases/download/${UV_VERSION}/uv-${UV_ARCH}.tar.gz" -o /tmp/uv.tar.gz

  echo "Checking uv tarball integrity..."
  if ! echo "${UV_SHA256}  /tmp/uv.tar.gz" | sha256sum -c --quiet -; then
    echo "ERROR: SHA256 checksum verification failed for uv tarball" >&2
    rm -f /tmp/uv.tar.gz
    exit 1
  fi
  sudo tar -xzf /tmp/uv.tar.gz -C /usr/local/bin --strip-components=1 "uv-${UV_ARCH}/uv" "uv-${UV_ARCH}/uvx"
  rm /tmp/uv.tar.gz

  echo "Syncing Python environments for skills..."
  find .github/skills -name pyproject.toml -type f -execdir uv sync \;

  echo "System dependencies installed successfully"
}

main "$@"
