# BASH OPTIONS

set -o noclobber -o pipefail
shopt -s dotglob extglob globstar histappend nullglob


# BASH VARIABLES

HISTCONTROL=ignoreboth:erasedups
HISTFILE=~/.local/state/bash_history
PS1='\[\e[34m\]' # Start color (blue).
PS1+='\w '       # Show current working directory followed by a space.
PS1+='\[\e[0m\]' # End color.


# ENVIRONMENT VARIABLES

# Set XDG base directory variables. I don't use these variables in my scripts,
# but I set them for software that uses them.
export XDG_CACHE_HOME=~/.cache
export XDG_CONFIG_HOME=~/.config
export XDG_DATA_HOME=~/.local/share
export XDG_STATE_HOME=~/.local/state

# Set nonstandard XDG base directory variables that some people use. I don't use
# these variables in my scripts, but I set them in case any software uses them.
export XDG_LOCAL_HOME=~/.local
export XDG_BIN_HOME=~/.local/bin
export XDG_LIB_HOME=~/.local/lib

# Set XDG user directory variables.
mapfile -t user_dirs < ~/.config/user-dirs.dirs
for line in "${user_dirs[@]}"; do
  [[ $line =~ ^XDG_ ]] && eval export "$line"
done
unset line user_dirs

# Set these variables to disable accessibility features of GTK, etc.
export ACCESSIBILITY_ENABLED=0
export GNOME_ACCESSIBILITY=0
export GTK_A11Y=none
export NO_AT_BRIDGE=1
export QT_ACCESSIBILITY=0
export QT_LINUX_ACCESSIBILITY_ALWAYS_ON=0

# Set fzf variables.
export FZF_DEFAULT_COMMAND='fd -H --strip-cwd-prefix'
export FZF_CTRL_T_COMMAND=$FZF_DEFAULT_COMMAND
export FZF_ALT_C_COMMAND="$FZF_DEFAULT_COMMAND -t d"
export FZF_DEFAULT_OPTS="--pointer= --prompt=' ' \
  --color='bw,hl:-1:regular,fg+:-1:regular,bg+:7,hl+:-1:regular' \
  --no-bold --no-height --no-info --no-reverse --no-separator"

# Set other environment variables.
export EDITOR=emacsclient # Used by `pass`, etc.
export GPG_TTY; GPG_TTY=$(tty) # Required by GnuPG.
export LC_COLLATE=C.UTF-8 # Improves alphabetical sorting for ls, etc.
export LC_TIME=en_US.UTF-8
export LESSHISTFILE=~/.local/state/lesshst
export LS_COLORS=di=34:ln=35:ex=32
export NODE_REPL_HISTORY=~/.local/state/node_repl_history
export NPM_CONFIG_USERCONFIG=~/.config/npmrc
export PASSWORD_STORE_DIR=~/.local/share/password-store
export PASSWORD_STORE_GENERATED_LENGTH=30
export PYTHONPYCACHEPREFIX=~/.cache/pycache
export TSSERVER_LOG_FILE=~/.local/state/tsserver.log # Is this still needed?
export XAUTHORITY=~/.local/state/Xauthority
[[ ! $PATH =~ home ]] && PATH=~/main/s/scripts:~/.local/bin:$PATH


# FUNCTIONS

# Run the given command as a background process. This function is used by my
# aliases for GUI apps (see ALIASES below).
_background() {
  ("$@" &> /dev/null &)
}

# Change the current directory and then list the current directory's contents.
# This function is used by my cd alias (see ALIASES below).
_cdls() {
  cd "$@" && ls -Ahl --color --group-directories-first --time-style=long-iso .
}

# Select a command from selectcmd.dat and insert it into the line buffer. I
# execute this function via a Readline key binding (see KEY BINDINGS below).
_selectcmd() {
  local line; line=$(grep '^[^#]' ~/.local/share/selectcmd.dat | fzf)
  local cmd=${line/* $ } # Remove description.
  READLINE_LINE=$READLINE_LINE$cmd # Set contents of line buffer.
  READLINE_POINT=${#READLINE_LINE} # Set insertion point to end of line buffer.
}


# ALIASES

alias c='relocate cp'
alias cd=_cdls
alias cp='cp -aiv'
alias df='df -hTx tmpfs'
alias emacs='_background emacs'
alias epiphany='_background epiphany'
alias evince='_background evince'
alias fd='fd --no-ignore-vcs'
alias feh='_background feh -T default'
alias firefox='_background firefox'
alias gimp='_background gimp'
alias google-chrome='_background google-chrome'
alias gpick='_background gpick'
alias grep='grep -Id skip --color=auto'
alias less='less -R'
alias ls='ls -Ahl --color --group-directories-first --time-style=long-iso'
alias ls-size='\ls -AhlrS --color --time-style=long-iso'
alias ls-time='\ls -Ahlrt --color --time-style=long-iso'
alias lsblk='lsblk -o NAME,PATH,TYPE,FSTYPE,FSSIZE,FSAVAIL,LABEL,MOUNTPOINT,UUID'
alias m='relocate mv'
alias mkdir='mkdir -pv'
alias mv='mv -iv'
alias o='xdg-open'
alias pc='pass-show -c'
alias pe=pass-edit
alias pg=pass-generate
alias pu=pass-use
alias qemu-system-x86_64='_background qemu-system-x86_64'
alias r='remove -fr'
alias rg='rg --no-ignore-vcs'
alias rm='rm -i'
alias sudo='sudo env PATH="$PATH" ' # Trailing space ensures that aliases expand.
alias tar='tar -v'
alias top-u='top -u "$USER"'
alias tree='tree -ah --dirsfirst'
alias umount='umount -v'
alias zathura='_background zathura'


# KEY BINDINGS

# When binding a key sequence that includes the Alt key, use \e instead of \M-
# (such as `bind -x '"\e.":insert-last-argument'`).

if [[ -f /usr/share/fzf/shell/key-bindings.bash ]]; then
  source /usr/share/fzf/shell/key-bindings.bash
fi

bind -x '"\C-j": _selectcmd'