"""
Woodpecker CI Proxy API

Liest Pipeline-Daten direkt aus der Woodpecker SQLite-Datenbank.
Wird als Fallback verwendet, wenn kein WOODPECKER_TOKEN konfiguriert ist.
"""

import sqlite3
from pathlib import Path
from datetime import datetime
from fastapi import APIRouter, Query

router = APIRouter(prefix="/v1/woodpecker", tags=["Woodpecker CI"])

WOODPECKER_DB = Path("/woodpecker-data/woodpecker.sqlite")


def get_db():
    if not WOODPECKER_DB.exists():
        return None
    conn = sqlite3.connect(f"file:{WOODPECKER_DB}?mode=ro", uri=True)
    conn.row_factory = sqlite3.Row
    return conn


@router.get("/status")
async def get_status():
    conn = get_db()
    if not conn:
        return {"status": "offline", "error": "Woodpecker DB nicht gefunden"}

    try:
        repos = [dict(r) for r in conn.execute(
            "SELECT id, name, full_name, active FROM repos ORDER BY id"
        ).fetchall()]

        total_pipelines = conn.execute("SELECT COUNT(*) FROM pipelines").fetchone()[0]
        success = conn.execute("SELECT COUNT(*) FROM pipelines WHERE status='success'").fetchone()[0]
        failure = conn.execute("SELECT COUNT(*) FROM pipelines WHERE status='failure'").fetchone()[0]

        latest = conn.execute("SELECT MAX(created) FROM pipelines").fetchone()[0]

        return {
            "status": "online",
            "repos": repos,
            "stats": {
                "total_pipelines": total_pipelines,
                "success": success,
                "failure": failure,
                "success_rate": round(success / total_pipelines * 100, 1) if total_pipelines > 0 else 0,
            },
            "last_activity": datetime.fromtimestamp(latest).isoformat() if latest else None,
        }
    finally:
        conn.close()


@router.get("/pipelines")
async def get_pipelines(
    repo: int = Query(default=0, description="Repo ID (0 = alle)"),
    limit: int = Query(default=10, ge=1, le=100),
):
    conn = get_db()
    if not conn:
        return {"status": "offline", "pipelines": [], "lastUpdate": datetime.now().isoformat()}

    try:
        base_sql = """SELECT p.id, p.repo_id, p.number, p.status, p.event, p.branch,
                             p."commit", p.message, p.author, p.created, p.started, p.finished,
                             r.name as repo_name
                      FROM pipelines p
                      JOIN repos r ON r.id = p.repo_id"""

        if repo > 0:
            rows = conn.execute(
                base_sql + " WHERE p.repo_id = ? ORDER BY p.id DESC LIMIT ?",
                (repo, limit)
            ).fetchall()
        else:
            rows = conn.execute(
                base_sql + " ORDER BY p.id DESC LIMIT ?",
                (limit,)
            ).fetchall()

        pipelines = []
        for r in rows:
            p = dict(r)

            # Get steps directly (steps.pipeline_id links to pipelines.id)
            steps = [dict(s) for s in conn.execute(
                """SELECT s.name, s.state, s.exit_code, s.error
                   FROM steps s
                   WHERE s.pipeline_id = ?
                   ORDER BY s.pid""",
                (p["id"],)
            ).fetchall()]

            p["steps"] = steps
            p["commit"] = (p.get("commit") or "")[:7]
            msg = p.get("message") or ""
            p["message"] = msg.split("\n")[0][:100]
            pipelines.append(p)

        return {
            "status": "online",
            "pipelines": pipelines,
            "lastUpdate": datetime.now().isoformat(),
        }
    finally:
        conn.close()


@router.get("/repos")
async def get_repos():
    conn = get_db()
    if not conn:
        return []

    try:
        repos = []
        for r in conn.execute("SELECT id, name, full_name, active FROM repos ORDER BY id").fetchall():
            repo = dict(r)
            latest = conn.execute(
                'SELECT status, created FROM pipelines WHERE repo_id = ? ORDER BY id DESC LIMIT 1',
                (repo["id"],)
            ).fetchone()
            if latest:
                repo["last_status"] = latest["status"]
                repo["last_activity"] = datetime.fromtimestamp(latest["created"]).isoformat()
            repos.append(repo)
        return repos
    finally:
        conn.close()