#!/usr/bin/env bash
# Create private repo on Gitea (git.4nkweb.com) and push this project to default branch.
# Requires: GITEA_TOKEN (Settings -> Applications -> Generate New Token on Gitea).
# Usage: GITEA_TOKEN=xxx ./scripts/create_and_push_gitea.sh

set -e

REPO_NAME="algo"
GITEA_URL="${GITEA_URL:-https://git.4nkweb.com}"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

if [ -z "${GITEA_TOKEN}" ]; then
  echo "GITEA_TOKEN is not set. Create a token on ${GITEA_URL}: Settings -> Applications -> Generate New Token."
  exit 1
fi

echo "Fetching current user from Gitea..."
USER_JSON=$(curl -s -H "Authorization: token ${GITEA_TOKEN}" "${GITEA_URL}/api/v1/user")
LOGIN=$(echo "$USER_JSON" | grep -o '"login":"[^"]*"' | head -1 | cut -d'"' -f4)
if [ -z "$LOGIN" ]; then
  echo "Failed to get user (invalid token or API error). Response: $USER_JSON"
  exit 1
fi
echo "User: $LOGIN"

echo "Creating repository ${REPO_NAME} (private)..."
CREATE_RESP=$(curl -s -w "\n%{http_code}" -X POST \
  -H "Authorization: token ${GITEA_TOKEN}" \
  -H "Content-Type: application/json" \
  -d "{\"name\":\"${REPO_NAME}\",\"private\":true}" \
  "${GITEA_URL}/api/v1/user/repos")
HTTP_BODY=$(echo "$CREATE_RESP" | head -n -1)
HTTP_CODE=$(echo "$CREATE_RESP" | tail -n 1)
if [ "$HTTP_CODE" = "201" ]; then
  echo "Repository created."
elif [ "$HTTP_CODE" = "409" ] || echo "$HTTP_BODY" | grep -q "already exists"; then
  echo "Repository already exists, continuing."
else
  echo "Create repo failed (HTTP $HTTP_CODE). Response: $HTTP_BODY"
  exit 1
fi

cd "$PROJECT_ROOT"
if [ ! -d .git ]; then
  git init
  git branch -M main
fi
# Initial commit when no commit exists yet (HEAD missing)
if ! git rev-parse --verify HEAD 1>/dev/null 2>&1; then
  git add -A
  git commit -m "Initial commit

**Motivations:**
- Initial push of project to Gitea

**Evolutions:**
- Add v0 content (plan, chapters, analysis, references)

**Pages affectées:**
- v0/*.md, scripts, .gitignore"
fi
if ! git remote get-url origin 2>/dev/null; then
  git remote add origin "https://${LOGIN}:${GITEA_TOKEN}@${GITEA_URL#https://}/${LOGIN}/${REPO_NAME}.git"
else
  git remote set-url origin "https://${LOGIN}:${GITEA_TOKEN}@${GITEA_URL#https://}/${LOGIN}/${REPO_NAME}.git"
fi
git branch -M main
echo "Pushing to origin main..."
git push -u origin main

echo "Done. Repository: ${GITEA_URL}/${LOGIN}/${REPO_NAME} (private)."