#!/usr/bin/env bash
#MISE description="Create a new upstream mirror in the mirrors/ Forgejo org"
#USAGE arg "<url>" help="Upstream git URL to mirror (e.g. https://github.com/org/repo.git)"
#USAGE flag "--name <name>" help="Repository name on forge (default: derived from URL)"
#USAGE flag "--description <description>" help="Repository description"
#USAGE flag "--dry-run" help="Show what would be done without creating"
set -euo pipefail

FORGE_API="https://forge.ops.eblu.me/api/v1"
ORG="mirrors"
OP_TOKEN_REF="op://blumeops/w3663ffnvkewbftncqxtcpeavy/api-token"

url="${usage_url:?}"

# Derive repo name from URL if not provided
if [[ -n "${usage_name:-}" ]]; then
    repo_name="${usage_name}"
else
    # Strip trailing .git and extract last path component
    repo_name="$(basename "$url" .git)"
fi

description="${usage_description:-}"

# Detect service type from URL
service="git"
case "$url" in
    *github.com*)    service="github" ;;
    *codeberg.org*)  service="gitea" ;;
    *forgejo.org*)   service="gitea" ;;
esac

echo "Mirror:      $url"
echo "Forge repo:  $ORG/$repo_name"
echo "Service:     $service"
[[ -n "$description" ]] && echo "Description: $description"
echo

if [[ "${usage_dry_run:-}" == "true" ]]; then
    echo "[dry-run] Would create mirror at ${FORGE_API}/repos/migrate"
    exit 0
fi

echo "Reading Forgejo API token from 1Password..."
token="$(op read "$OP_TOKEN_REF")"

payload=$(cat <<ENDJSON
{
    "clone_addr": "$url",
    "repo_name": "$repo_name",
    "repo_owner": "$ORG",
    "mirror": true,
    "service": "$service",
    "description": "$description"
}
ENDJSON
)

http_code=$(curl -s -o /tmp/mirror-create-response.json -w "%{http_code}" \
    -X POST "${FORGE_API}/repos/migrate" \
    -H "Authorization: token ${token}" \
    -H "Content-Type: application/json" \
    -d "$payload")

if [[ "$http_code" == "201" ]]; then
    echo "Created mirror: https://forge.ops.eblu.me/${ORG}/${repo_name}"
else
    echo "Error (HTTP $http_code):"
    cat /tmp/mirror-create-response.json
    exit 1
fi