#!/usr/bin/env bash
set -euo pipefail
root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$root"
origin="$(git remote get-url origin)"
origin="${origin%/}"
remote_root="$(printf '%s\n' "$origin" | sed -E 's#/[^/]+(\.git)?$##')"
fetch_repo() {
  local repo="$1"
  local branch="$2"
  local dir="$3"
  if [ -e "$dir" ]; then
    printf '路径【%s】已存在，跳过初始化\n' "$dir"
    return 0
  fi
  git clone --branch "$branch" --single-branch "$repo" "$dir"
}
fetch_repo_ex() {
  local name="$1"
  local repo="${remote_root}/${name}"
  local branch="master"
  fetch_repo "$repo" "$branch" "third_party/${name}"
}
clone_git_shallow() {
  if [ "$#" -ne 2 ]; then
    printf '用法: clone_git_shallow <git地址> <分支或标签>\n' >&2
    return 2
  fi
  local git_url="${1%/}"
  local branch="$2"
  local repo_name="${git_url##*/}"
  local dir
  repo_name="${repo_name%.git}"
  dir="third_party/${repo_name}"
  if [ -e "$dir" ]; then
    printf '路径【%s】已存在，跳过初始化\n' "$dir"
    return 0
  fi
  git clone --branch "$branch" --depth 1 --single-branch "$git_url" "$dir"
}

mkdir -p third_party
clone_git_shallow "https://github.com/nlohmann/json.git" "v3.12.0"
clone_git_shallow "https://github.com/Neargye/magic_enum.git" "v0.9.8"