install.pre

#!/usr/bin/env bash

# Colors
RESET=$(tput sgr0)
# shellcheck disable=SC2034
RED=$(tput setaf 1)
# shellcheck disable=SC2034
GREEN=$(tput setaf 2)
# shellcheck disable=SC2034
YELLOW=$(tput setaf 3)
# shellcheck disable=SC2034
BLUE=$(tput setaf 4)
# shellcheck disable=SC2034
MAGENTA=$(tput setaf 5)
# shellcheck disable=SC2034
CYAN=$(tput setaf 6)
# shellcheck disable=SC2034
ITALIC=$(tput sitm)
# shellcheck disable=SC2034
BOLD=$(tput bold)

# system / hardware check; currently only support ubuntu 24.04 and archlinux
if [[ ! -f "/etc/os-release" ]]; then
    echo "${BOLD}${YELLOW}ERROR${RESET}: couldn't determine current os."
    [[ ${DOTFILES_STRICT_CHECKING} != 0 ]] && echo "Use DOTFILES_STRICT_CHECKING=0 to bypass it" && exit 1
else
    . /etc/os-release
    if [[ ${NAME} != "Ubuntu" ]] && [[ ${NAME} != "Arch Linux" ]]; then
        echo "${BOLD}${RED}ERROR${RESET}: distro ${NAME} is not supported"
        [[ ${DOTFILES_STRICT_CHECKING} != 0 ]] && echo "Use DOTFILES_STRICT_CHECKING=0 to bypass it" && exit 1
    fi
    if [[ ${NAME} == "Ubuntu" ]] && [[ ${VERSION_ID} != "24.04" ]]; then
        echo "${BOLD}${YELLOW}WARNING${RESET}: Ubuntu ${VERSION_ID} might not be well supported"
    fi
fi
if [[ $(uname -m) != "x86_64" ]]; then
    echo "${BOLD}${YELLOW}ERROR${RESET}: hardware $(uname -m) is not supported"
    [[ ${DOTFILES_STRICT_CHECKING} != 0 ]] && echo "Use DOTFILES_STRICT_CHECKING=0 to bypass it" && exit 1
fi

# delete all broken symlinks in $CLEAN_DIRS
function delete_broken_symlinks() {
    echo "${BLUE}Deleting broken symlinks ...${RESET}"
    for CLEAN_DIR in "$@"; do
        if [ -d ${CLEAN_DIR} ]; then
            CLEAN_DIR_RELATIVE=$(echo "$CLEAN_DIR" | sed "s|^$HOME|~|")
            find ${CLEAN_DIR} -maxdepth 1 -type l -exec sh -c 'for x; do [ -e "$x" ] || rm "$x"; done' _ {} + &&
                echo "- ${BOLD}${GREEN}OK${RESET} Deleting broken symlinks in ${CYAN}${CLEAN_DIR_RELATIVE}${RESET} succeeded" ||
                echo "- ${BOLD}${RED}ERROR${RESET} Deleting broken symlinks in ${CYAN}${CLEAN_DIR_RELATIVE}${RESET} failed"
        fi
    done
}

################################################################################
function print_separate_line() {
    echo "${BLUE}----------------------------------------------------------------------${RESET}"
}

print_separate_line
# NOTE: do not place this block inside function; otherwise it won't exit
if [[ $(basename $SHELL) != 'zsh' ]]; then
    echo "${BOLD}${RED}ERROR${RESET}: current shell is not zsh"
    echo "- Please install zsh, run '${BOLD}${MAGENTA}chsh -s $(which zsh)${RESET}', relogin shell and run this script again."
    exit 1
else
    echo "${BOLD}${GREEN}OK${RESET}: current shell is zsh"
    # create ~/.zshrc.local if not exists
    if [ ! -f ~/.zshrc.local ]; then
        touch ~/.zshrc.local && echo "- ${BOLD}${CYAN}INFO${RESET} ~/.zshrc.local created"
    fi
fi

print_separate_line
delete_broken_symlinks ~ ~/bin ~/.config/nvim ~/.config/nvim/lua

################################################################################
# vim: ft=bash syntax=bash cc=120 tw=119 ts=4 sw=4 sts=4 et sr