.bashrc

# =============================================================================
#  .bashrc — Enhanced Bourne-Again Shell Configuration
#  Part of the linux-environment dotfiles project
# =============================================================================

# --- Source aliases if present -------------------------------------------------
if [ -f ~/.aliases ]; then
    . ~/.aliases
fi

# --- Shell options -------------------------------------------------------------
shopt -s autocd              # cd by typing directory name
shopt -s cdspell             # auto-correct typos in cd
shopt -s checkwinsize        # update LINES/COLUMNS after resize
shopt -s histappend          # append to history, don't overwrite
shopt -s no_empty_cmd_completion
shopt -s globstar            # ** globbing

# --- History settings ----------------------------------------------------------
HISTSIZE=10000
HISTFILESIZE=20000
HISTCONTROL=ignoreboth:erasedups
HISTTIMEFORMAT="%F %T "
HISTIGNORE="ls:ll:la:cd:exit:pwd:clear:history"

# --- Prompt --------------------------------------------------------------------
# Colors (emerald green palette)
emerald="\[\e[38;5;83m\]"
cyan="\[\e[38;5;81m\]"
white="\[\e[38;5;255m\]"
yellow="\[\e[38;5;228m\]"
red="\[\e[38;5;196m\]"
reset="\[\e[0m\]"
bold="\[\e[1m\]"

# Git branch/status for prompt
__git_ps1() {
    local branch=$(git symbolic-ref --short HEAD 2>/dev/null)
    if [ -n "$branch" ]; then
        local status=$(git status --porcelain 2>/dev/null)
        if [ -n "$status" ]; then
            echo " ${yellow}(${branch} ✗)${reset}"
        else
            echo " ${emerald}(${branch} ✓)${reset}"
        fi
    fi
}

# Exit status coloring
__exit_status() {
    if [ $? -eq 0 ]; then
        echo -e "${emerald}❯${reset}"
    else
        echo -e "${red}❯${reset}"
    fi
}

# Build PS1
PS1='\n\[${bold}\]${emerald}\u${white}@${emerald}\h ${cyan}\w${reset}$(__git_ps1)\n$(__exit_status) '

# --- Auto-completion -----------------------------------------------------------
if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
fi

# Complete hostnames in known_hosts for ssh/scp
[ -r /etc/ssh/ssh_known_hosts ] && _SSH_HOSTS=($(awk '{print $1}' /etc/ssh/ssh_known_hosts 2>/dev/null))
complete -W "${_SSH_HOSTS[*]}" ssh scp sftp

# --- Misc ----------------------------------------------------------------------
# Set default editor
export EDITOR=vim
export VISUAL=vim

# Better man pages with color
export MANPAGER="less -R"
export LESS_TERMCAP_mb=$'\e[1;31m'
export LESS_TERMCAP_md=$'\e[1;38;5;83m'
export LESS_TERMCAP_me=$'\e[0m'
export LESS_TERMCAP_se=$'\e[0m'
export LESS_TERMCAP_so=$'\e[1;40;5;7m'
export LESS_TERMCAP_ue=$'\e[0m'
export LESS_TERMCAP_us=$'\e[4;38;5;81m'

# --- PATH ----------------------------------------------------------------------
export PATH="$HOME/.local/bin:$HOME/tools:$PATH"

# --- Node.js (if available) ----------------------------------------------------
if [ -d "$HOME/.nvm" ]; then
    export NVM_DIR="$HOME/.nvm"
    [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"
fi

# --- Rust (if available) -------------------------------------------------------
if [ -f "$HOME/.cargo/env" ]; then
    . "$HOME/.cargo/env"
fi

# --- Starship fallback (if installed) ------------------------------------------
if command -v starship &>/dev/null; then
    eval "$(starship init bash)"
fi