#!/usr/bin/env bash
# Codex CLI — Uninstaller
# Removes Codex CLI binary, config, env vars.
#
# Usage: sudo bash ucodex_uninstall.sh
set -euo pipefail

OS="$(uname -s)"
IS_MACOS=false
[ "$OS" = "Darwin" ] && IS_MACOS=true

# Cross-platform sed -i
sedi() {
    if $IS_MACOS; then
        sed -i '' "$@"
    else
        sed -i "$@"
    fi
}

GREEN="\033[92m"
CYAN="\033[96m"
YELLOW="\033[93m"
BOLD="\033[1m"
RESET="\033[0m"

log()  { echo -e "${GREEN}[+]${RESET} $*"; }
warn() { echo -e "${YELLOW}[~]${RESET} $*"; }
info() { echo -e "${CYAN}[i]${RESET} $*"; }

echo -e "${BOLD}"
echo "  +--------------------------------------+"
echo "  |    Codex CLI — Uninstaller           |"
echo "  +--------------------------------------+"
echo -e "${RESET}"

# ---- Remove binary ----

CODEX_PATH=$(command -v codex 2>/dev/null || echo "")
if [ -n "$CODEX_PATH" ]; then
    info "Removing wrapper: $CODEX_PATH"
    rm -f "$CODEX_PATH"
    log "Wrapper removed"
else
    warn "Codex wrapper not found in PATH"
fi

# Also remove the hidden binary
if [ -f "/usr/local/bin/.codex-bin" ]; then
    info "Removing binary: /usr/local/bin/.codex-bin"
    rm -f "/usr/local/bin/.codex-bin"
    log "Binary removed"
fi

# ---- Determine user home directories ----

if $IS_MACOS; then
    _home_dirs=(/Users/*)
else
    _home_dirs=(/root /home/*)
fi

# ---- Remove config ----

for user_home in "${_home_dirs[@]}"; do
    CODEX_DIR="$user_home/.codex"
    if [ -d "$CODEX_DIR" ]; then
        info "Removing $CODEX_DIR..."
        rm -rf "$CODEX_DIR"
        log "Removed $CODEX_DIR"
    fi
done

# ---- Remove env vars from shell rc files ----

for user_home in "${_home_dirs[@]}"; do
    for rc_file in "$user_home/.bashrc" "$user_home/.zshrc"; do
        if [ -f "$rc_file" ] && grep -q 'OPENAI_API_KEY\|OPENAI_BASE_URL\|Codex' "$rc_file" 2>/dev/null; then
            info "Cleaning env vars from $rc_file..."
            sedi '/# Codex/d' "$rc_file"
            sedi '/# UnlimitedCoding.*[Cc]odex/d' "$rc_file"
            sedi '/OPENAI_API_KEY/d' "$rc_file"
            sedi '/OPENAI_BASE_URL/d' "$rc_file"
            log "Cleaned $rc_file"
        fi
    done
done

# ---- Remove env vars from /etc/environment ----

if [ -f "/etc/environment" ] && grep -q 'OPENAI_API_KEY\|OPENAI_BASE_URL' /etc/environment 2>/dev/null; then
    info "Cleaning /etc/environment..."
    sedi '/OPENAI_API_KEY/d' /etc/environment
    sedi '/OPENAI_BASE_URL/d' /etc/environment
    log "Cleaned /etc/environment"
fi

# ---- Remove env file and profile.d scripts ----

for envf in "/etc/profile.d/codex-cli.sh" "/etc/profile.d/codex-env.sh" "/etc/codex-env.sh"; do
    if [ -f "$envf" ]; then
        rm -f "$envf"
        log "Removed $envf"
    fi
done

# ---- macOS: unset launchctl env vars ----

if $IS_MACOS; then
    launchctl unsetenv OPENAI_API_KEY 2>/dev/null || true
    launchctl unsetenv OPENAI_BASE_URL 2>/dev/null || true
    log "Unset launchctl env vars"
fi

# ---- Clean codex-env.sh source lines from rc files ----

for user_home in "${_home_dirs[@]}"; do
    for rc_file in "$user_home/.bashrc" "$user_home/.zshrc"; do
        if [ -f "$rc_file" ] && grep -q 'codex-env\.sh' "$rc_file" 2>/dev/null; then
            sedi '/codex-env\.sh/d' "$rc_file"
            log "Cleaned codex-env source from $rc_file"
        fi
    done
done

echo ""
echo -e "${GREEN}${BOLD}  Codex CLI fully uninstalled!${RESET}"
echo ""