#!/usr/bin/env bash
set -euo pipefail
CSV_FILE="repos.csv"
IFS=,
while read -r name url type target directory; do
  if [ "$name" = "name" ]; then continue; fi
  echo "\n[Repo] $name -> $directory"
  if [ ! -d "$directory" ]; then
    echo "[Clone] $url"
    git clone --progress "$url" "$directory" || true
  fi
  echo "[Fetch] $directory"
  git -C "$directory" fetch --all --prune --tags --progress || true
  case "$type" in
    branch)
      echo "[Checkout] $target"
      if git -C "$directory" show-ref --verify --quiet "refs/remotes/origin/$target"; then
        git -C "$directory" checkout "$target" 2>/dev/null || git -C "$directory" checkout -B "$target" "origin/$target"
        git -C "$directory" reset --hard "origin/$target"
      else
        echo "[Warn] Branche $target introuvable pour $name"
      fi
      ;;
    create_from)
      base="${target%%->*}"
      newb="${target##*->}"
      echo "[Create] $newb depuis $base"
      if git -C "$directory" show-ref --verify --quiet "refs/remotes/origin/$base"; then
        git -C "$directory" checkout -B "$newb" "origin/$base"
      else
        echo "[Error] Base $base introuvable pour $name"
      fi
      ;;
    *)
      echo "[Warn] Type inconnu: $type"
      ;;
  esac
done < "$CSV_FILE"