#!/bin/sh


BIN_DIR="/root/git"
GIT_DIR="/var/www/git"
GIT_SSH_COMMAND='ssh -i ~/.ssh/key-mjkloeckner'

MAX_PARALLEL_JOBS=1

mkdir -p "$GIT_DIR"

count_repos_in_list()
{
    set -- $1
    echo "$#"
}

parallel_jobs_cleanup()
{
    trap - INT TERM

    for pid in $pids; do
        kill "$pid" 2>/dev/null
    done

    wait

    exit 130
}

update_repo()
{
    repo="$1"
    repo_dir="$2"
    bare_repo_path="$3"

    if [ -d "$repo_dir" ] && [ -d "$bare_repo_path" ]; then
        git -C "$bare_repo_path" remote update --prune
    else
        mkdir -p "$repo_dir"
        git clone --mirror "https://github.com/$repo.git" "$bare_repo_path"
        ln -sf "$bare_repo_path" /home/git
    fi

    # always update description
    gh repo view "$repo" --json description --jq '.description' > \
        "$bare_repo_path/description"

    (
        cd "$GIT_DIR" || exit
        "$BIN_DIR/update-git-repo" "$repo_dir"
    )
}

repos_list=$(gh repo list --limit 1000 --json nameWithOwner,isPrivate,isFork \
    --jq '.[] | select(.isPrivate == false and .isFork == false) |
    .nameWithOwner' | sort)
repos_count=$(count_repos_in_list "$repos_list")

jobs=0
pids=""

trap parallel_jobs_cleanup INT TERM

for repo in $repos_list; do
    name=$(basename "$repo")
    repo_dir="$GIT_DIR/$name"
    bare_repo_path="$repo_dir/$name.git"

    update_repo "$repo" "$repo_dir" "$bare_repo_path" &
    pid=$!
    pids="$pids $pid"
    jobs=$((jobs + 1))

    if [ "$jobs" -ge "$MAX_PARALLEL_JOBS" ]; then
        wait
        pids=""
        jobs=0
    fi

    # always update description
    # gh repo view $repo --json description --jq '.description' > \
    #     $bare_repo_path/description

    # if [ -d "$repo_dir" ] && [ -d "$bare_repo_path" ]; then
    #     git -C "$bare_repo_path" remote update --prune
    # else
    #     mkdir -p "$repo_dir"
    #     git clone --mirror "https://github.com/$repo.git" "$bare_repo_path"
    #     ln -sf "$bare_repo_path" /home/git
    # fi

    # (cd "$GIT_DIR"; "$BIN_DIR"/update-git-repo "$repo_dir")
done

# (cd "$GIT_DIR"; "$BIN_DIR"/generate-git-main-index .)