import json
import os
import requests
import sys

# Configuration from Environment
TOKEN = os.getenv("GITEA_TOKEN")
URL = os.getenv("GITEA_URL")
REPO = os.getenv("REPO_NAME")
HEADERS = {"Authorization": f"token {TOKEN}", "Content-Type": "application/json"}


def sync():
    beads_path = ".beads/issues.jsonl"

    if not os.path.exists(beads_path):
        print(f"❌ ERROR: {beads_path} not found.")
        sys.exit(1)

    print(f"🔍 Reading Beads from: {beads_path}")

    # 1. Fetch existing issues from Gitea
    try:
        # state=all includes closed issues so we don't create duplicates of finished tasks
        api_url = f"{URL}/api/v1/repos/{REPO}/issues?state=all"
        resp = requests.get(api_url, headers=HEADERS)
        resp.raise_for_status()
        # Map by [ID] to identify existing ones
        existing = {
            i["title"].split("]")[0][1:]: i for i in resp.json() if "]" in i["title"]
        }
        print(f"📡 Found {len(existing)} existing issues in Gitea.")
    except Exception as e:
        print(f"❌ Gitea API Connection Failed: {e}")
        sys.exit(1)

    # 2. Parse the Beads JSONL file
    processed_count = 0
    with open(beads_path, "r") as f:
        for line in f:
            processed_count += 1
            line = line.strip()
            if not line:
                continue

            print(f"DEBUG: Processing line -> {line}")
            try:
                data = json.loads(line)
                bid = data.get("id")
                title = data.get("title")
                # Matches your 'cat' output: "issue_type":"task"
                itype = data.get("issue_type", "unknown")

                if not bid:
                    print("⚠️ Skipping line: No ID found.")
                    continue

                unique_title = f"[{bid}] {title}"
                payload = {
                    "title": unique_title,
                    "body": f"{data.get('description', 'No description provided.')}\n\n---\n**Beads ID:** `{bid}`\n**Type:** `{itype}`",
                    "state": "closed"
                    if data.get("status") in ["closed", "done"]
                    else "open",
                }

                if bid in existing:
                    print(
                        f"✅ Updating Gitea Issue #{existing[bid]['number']} for {bid}"
                    )
                    requests.patch(
                        f"{URL}/api/v1/repos/{REPO}/issues/{existing[bid]['number']}",
                        headers=HEADERS,
                        json=payload,
                    )
                else:
                    print(f"➕ Creating New Gitea Issue for {bid}")
                    r = requests.post(
                        f"{URL}/api/v1/repos/{REPO}/issues",
                        headers=HEADERS,
                        json=payload,
                    )
                    r.raise_for_status()

            except Exception as e:
                print(f"⚠️ Error processing bead: {e}")
    print(f"🏁 Finished. Processed {processed_count} beads.")
    if processed_count == 0:
        print("❌ ERROR: File was found but it was EMPTY. Check your git push.")
        sys.exit(1)


if __name__ == "__main__":
    sync()