#!/bin/bash
# 将 herdr 配置链接到 dotfile

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

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

将 ~/.dotfile/herdr/config.toml 软链接到 herdr 配置路径:
  $XDG_CONFIG_HOME/herdr/config.toml（默认 ~/.config/herdr/config.toml）

已有配置会备份为 *.backup.<时间戳>。

选项:
  -h, --help  显示此帮助
EOF
}

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

set -e

SRC="$HOME/.dotfile/herdr/config.toml"
CONFIG_HOME="${XDG_CONFIG_HOME:-$HOME/.config}"
DEST_DIR="$CONFIG_HOME/herdr"
DEST="$DEST_DIR/config.toml"

if [ ! -f "$SRC" ]; then
    echo "错误: 未找到 $SRC" >&2
    exit 1
fi

echo "初始化 herdr 配置..."
echo "目标路径: $DEST"

mkdir -p "$DEST_DIR"

if [ -L "$DEST" ] && [ "$(readlink -f "$DEST")" = "$(readlink -f "$SRC")" ]; then
    echo "软链接已存在且指向正确位置,无需操作。"
    exit 0
fi

if [ -e "$DEST" ] || [ -L "$DEST" ]; then
    BACKUP="$DEST.backup.$(date +%Y%m%d%H%M%S)"
    mv "$DEST" "$BACKUP"
    echo "已将现有配置备份到 $BACKUP"
fi

ln -s "$SRC" "$DEST"

if [ -L "$DEST" ] && [ "$(readlink -f "$DEST")" = "$(readlink -f "$SRC")" ]; then
    echo "软链接创建成功: $DEST -> $SRC"
else
    echo "软链接创建失败,请检查路径和权限。" >&2
    exit 1
fi

if command -v herdr >/dev/null 2>&1; then
    echo "校验配置:"
    herdr config check || true
    if pgrep -x herdr >/dev/null 2>&1; then
        echo "herdr 正在运行,可在 herdr 内用 prefix+shift+r 热重载"
    fi
else
    echo "未找到 herdr,跳过配置校验"
fi