setup

#!/data/data/com.termux/files/usr/bin/bash
source /storage/emulated/0/repos/obsidian-android-sync/bashrc

### Turn off untrusted repo protection

existing_dirs=$(git config --global --get-all safe.directory)

if [[ ! $existing_dirs == *"*"* ]]; then
    git config --global --add safe.directory "*"
fi

### Update scripts repo

cd "$SCRIPTS_REPO_PATH"
git fetch > /dev/null
git_status=$(git status)

if [[ "$git_status" == *"Your branch is behind"* ]]; then
  if [[ "$git_status" == *"Changes not staged for commit"* || "$git_status" == *"Changes to be committed"* ]]; then
    echo -e "${RED}There are local changes in the scripts repo which would block a git pull. Just be aware that you're missing updates. Continuing script...${RESET}"
  else
    if git pull > /dev/null 2>&1; then
      echo -e "${GREEN}Updated the scripts repo!${RESET}"
    else
      echo -e "${RED}Failed to update the scripts repo.${RESET}"
      exit 1
    fi

    # Check if 'setup' file in repo is different from the one in $HOME
    if ! diff "${SCRIPTS_REPO_PATH}/setup" "$HOME/setup" > /dev/null; then
        cmd="cp \"${SCRIPTS_REPO_PATH}/setup\" \"${HOME}/\""
        echo -e "$cmd" | termux-clipboard-set
        echo -e "${RED}The 'setup' file has been updated.\nRun the following command to update it (it's already in your clipboard):\n${YELLOW}${cmd}${RESET}"
        echo -e "${RED}Exiting script.${RESET}"
        exit 1
    fi
  fi
fi

### Make sure Termux has file permissions

if touch "$STORAGE_PATH"/.termux_permission_check; then
  rm "$STORAGE_PATH"/.termux_permission_check
else
  echo -e "${RED}Termux does not have file permissions.${RESET}"
  echo -e "${BLUE}Run 'termux-setup-storage' or give the permission from Termux's permissions menu on Android.${RESET}"
fi

### Enable allow-external-apps

if grep -q '^# allow-external-apps = true' $HOME/.termux/termux.properties; then
  sed -i 's/^# allow-external-apps = true/allow-external-apps = true/' $HOME/.termux/termux.properties
  termux-reload-settings
fi

### Install packages -- attempt

# package_installed() {
#   dpkg -l | grep -q "$1"
# }

# for pkg in git termux-api openssh; do
#   if ! package_installed "$pkg"; then
#     echo "Installing $pkg..."
#     apt-get install -y "$pkg"
#   fi
# done

### Create SSH keys

if [ ! -f ~/.ssh/id_rsa ]; then
  echo -e "${BLUE}Creating an SSH key...${RESET}"
  ssh-keygen -t rsa -N "" -f ~/.ssh/id_rsa > /dev/null # #TODO: use better crypto?

  if cat ~/.ssh/id_rsa.pub | termux-clipboard-set; then
    echo -e "${BLUE}SSH public key has been copied to your clipboard.${RESET}"
    echo -e "${BLUE}Please paste it into your Git host's SSH keys authentication settings.${RESET}"
  else
    echo -e "$YELLOW"
    cat ~/.ssh/id_rsa.pub
    echo -e "\n$RESET"
    echo -e "${BLUE}Copy the key above (in ${YELLOW}yellow${BLUE}) and paste it into your Git host's SSH keys authentication settings.${RESET}"
  fi
else
  echo -e "$YELLOW"
  cat ~/.ssh/id_rsa.pub
  echo -e "\n${BLUE}Here's your SSH key (above in ${YELLOW}yellow${BLUE}) in case you want to copy it.${RESET}"
fi

### Copy and chmod scripts to $HOME

DEST_DIR="$HOME"

for file in "$SCRIPTS_REPO_PATH"/*; do
  filename=$(basename -- "$file")
  cp "$file" "$DEST_DIR/"
  chmod +x "$DEST_DIR/$filename"
done

### Add source to bashrc

BASHRC_FILE="/data/data/com.termux/files/usr/etc/bash.bashrc"

declare -a LINES_TO_ADD=(
  "source $SCRIPTS_REPO_PATH/bashrc # obsidian-sync-source-tag"
)

modify_or_add_line_with_tag() {
  local line=$1
  local file=$2
  local tag=$(echo "$line" | awk -F'#' '{print $2}')

  sed -i "/$tag/d" "$file"
  echo "$line" >> "$file"
}

for line in "${LINES_TO_ADD[@]}"; do
  modify_or_add_line_with_tag "$line" "$BASHRC_FILE"
done

### Make sure user.name and user.email is populated

git_name=$(git config --global user.name)
git_email=$(git config --global user.email)

if [ -z "$git_name" ]; then
  read -p "Enter your git user.name: " git_name
  git config --global user.name "$git_name"
fi

 if [ -z "$git_email" ]; then
  read -p "Enter your git user.email: " git_email
  git config --global user.email "$git_email"
fi

### Git config

git config --global core.editor nano
git config --global merge.conflictstyle diff3

###

touch $NOTIFICATION_PATH

cd $OBSIDIAN_DIR_PATH

echo -e "\n${GREEN}Setup complete${RESET}\n"