#!/bin/bash

# INTRO:
# This file is used to build ferdium on both x64 and arm-based for macos and linux (not tested on arm for linux).
# It also handles any corrupted node modules with the 'CLEAN' env var (set it to 'true' for cleaning)
# It will install the system dependencies except for node (which is still verified)
# I sometimes symlink my 'recipes' folder so that any changes that I need to do in it can also be committed and pushed independently
# This file can live anywhere in your PATH

set -e

export ELECTRON_CACHE=$HOME/.cache/electron
export ELECTRON_BUILDER_CACHE=$HOME/.cache/electron-builder
export CSC_IDENTITY_AUTO_DISCOVERY=false
export CI=true

# -----------------------------------------------------------------------------
#                  Utility functions
fail_with_docs() {
  printf "\n*************** FAILING ***************\n"
  echo "$1"
  echo ""
  echo "Please read the developer documentation in CONTRIBUTING.md"
  exit 1
}

command_exists() {
  type "$1" &>/dev/null 2>&1
}

# -----------------------------------------------------------------------------
#                  Checking the developer environment
# Check for installed programmes
command_exists node || fail_with_docs "Node is not installed"

# Check node version
EXPECTED_NODE_VERSION=$(cat .nvmrc)
ACTUAL_NODE_VERSION=$(node -v)
if [ "v$EXPECTED_NODE_VERSION" != "$ACTUAL_NODE_VERSION" ]; then
  fail_with_docs "You are not running the expected version of node!
    expected: [v$EXPECTED_NODE_VERSION]
    actual  : [$ACTUAL_NODE_VERSION]"
fi

# Check if the 'recipes' folder is present either as a git submodule or a symbolic link
if ! [ -f "recipes/package.json" ]; then
  fail_with_docs "'recipes' folder is missing or submodule has not been checked out"
fi

# This log statement is only to remind me which 'recipes' folder I am using (symlink or git submodule)
if [[ -L recipes ]]; then
  printf "\n*************** CONTINUING for 'recipes' symlinked ***************\n"
else
  printf "\n*************** CONTINUING for 'recipes' submodule ***************\n"
fi

# -----------------------------------------------------------------------------
# If you are moving to a new version of node or any other system dependency, then cleaning is recommended
# so that there's no irregular results due to cached modules
if [ "$CLEAN" != "true" ]; then
  printf "\n*************** SKIPPING Cleaning ***************\n"
else
  printf "\n*************** Cleaning!!!!!! ***************\n"

  if [[ -s 'pnpm-lock.yaml' ]]; then
    pnpm store prune || true # in case the pnpm executable itself is not present
    rm -rf ~/.pnpm-store ~/.pnpm-state
  fi

  npm cache clean --force
  rm -rf ~/.npm ~/.electron-gyp ~/.asdf/installs/nodejs/*/.npm/

  git -C recipes clean -fxd # Clean recipes folder/submodule
  git clean -fxd            # Note: This will blast away the 'recipes' folder if you have symlinked it
fi

# -----------------------------------------------------------------------------
# Ensure that the system dependencies are at the correct version - fail if not

# -----------------------------------------------------------------------------
# Ensure that the system dependencies are at the correct version - recover if not
# If 'asdf' is installed, reshim for new nodejs if necessary
command_exists asdf && asdf reshim nodejs

# Ensure that the system dependencies are at the correct version
# Check npm version
EXPECTED_NPM_VERSION=$(node -p 'require("./package.json").engines.npm')
ACTUAL_NPM_VERSION=$(npm --version)
if [[ "$ACTUAL_NPM_VERSION" != "$EXPECTED_NPM_VERSION" ]]; then
  npm i -gf npm@$EXPECTED_NPM_VERSION
fi

# Check pnpm version
EXPECTED_PNPM_VERSION=$(node -p 'require("./recipes/package.json").engines.pnpm')
ACTUAL_PNPM_VERSION=$(pnpm --version || true) # in case the pnpm executable itself is not present
if [[ "$ACTUAL_PNPM_VERSION" != "$EXPECTED_PNPM_VERSION" ]]; then
  npm i -gf pnpm@$EXPECTED_PNPM_VERSION
fi

# If 'asdf' is installed, reshim for new nodejs if necessary
command_exists asdf && asdf reshim nodejs

# -----------------------------------------------------------------------------
# This is useful if we move from 'npm' to 'pnpm' for the main repo as well
if [[ -s 'pnpm-lock.yaml' ]]; then
  BASE_CMD=pnpm
else
  BASE_CMD=npm
fi

# Now the meat.....
$BASE_CMD i
$BASE_CMD run prepare-code

# -----------------------------------------------------------------------------
printf "\n*************** Building recipes ***************\n"
# Note: 'recipes' is already using only pnpm - can switch to $BASE_CMD AFTER both repos are using pnpm
pushd recipes
pnpm i
pnpm package
popd

# -----------------------------------------------------------------------------
printf "\n*************** Building app ***************\n"
if [[ "$(uname -m)" =~ "arm" ]]; then
  TARGET_ARCH=arm64
else
  TARGET_ARCH=x64
fi

if [[ "$(uname)" =~ "Darwin" ]]; then
  TARGET_OS="mac"
else
  TARGET_OS="linux"
fi

$BASE_CMD run build -- --$TARGET_ARCH --$TARGET_OS --dir

printf "\n*************** App successfully built! ***************\n"

# Final check to ensure that the version built is the same as the latest commit
VERSION_BUILT_HASH=$(node -p 'require("./build/buildInfo.json").gitHashShort')
GIT_BUILT_HASH=$(git rev-parse --short HEAD)
if [[ $GIT_BUILT_HASH != $VERSION_BUILT_HASH ]]; then
  echo "The built version is not on the latest commit
    latest commit : [$GIT_BUILT_HASH]
    actual build  : [$VERSION_BUILT_HASH]"
  exit 1
fi