#!/bin/bash
# 链接 tmux 配置并安装 TPM 插件

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck disable=SC1091
source "$SCRIPT_DIR/common/help.sh"

usage() {
    cat <<'EOF'
用法: tmux-init

1. 将 ~/.tmux.conf 链接到 ~/.dotfile/tmux/.tmux.conf
2. 克隆 tpm 到 ~/.tmux/plugins/tpm（若不存在）
3. 安装插件并 reload tmux 配置

选项:
  -h, --help  显示此帮助
EOF
}

dotfile_help_requested "${1:-}" && dotfile_show_help

set -euo pipefail

echo 'Init tmux config'
src="$HOME/.tmux.conf"
target="$HOME/.dotfile/tmux/.tmux.conf"
if [ -L "$src" ] && [ "$(readlink "$src")" = "$target" ]; then
    echo "  $src already links to dotfile config, skip"
else
    if [ -e "$src" ] || [ -L "$src" ]; then
        backup="${src}.backup.$(date +%Y%m%d%H%M%S)"
        mv "$src" "$backup"
        echo "  Backed up existing config: $backup"
    fi
    ln -s "$target" "$src"
    echo "  Linked: $src -> $target"
fi

echo 'Install tpm'
if [ ! -e ~/.tmux/plugins/tpm ]; then
    git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
fi

echo 'Install tmux plugin by tpm'
"$HOME/.tmux/plugins/tpm/bin/install_plugins"

echo 'Reload tmux'
if tmux list-sessions >/dev/null 2>&1; then
    tmux source-file "$src"
else
    echo '  No running tmux server, config will be loaded when tmux starts'
fi