"""Tier 1 Metrics — API routes for Argus dashboard.

Four endpoints:
  GET /api/yield          — extraction yield per agent per day
  GET /api/cost-per-claim — cost per merged claim per day + stage breakdown
  GET /api/fix-rates      — fix success rate by rejection tag
  GET /api/compute-profile — full compute telemetry (cache, latency, cost estimates)

All accept ?days=N (default 30) to control lookback window.

Owner: Argus <69AF7290-758F-464B-B472-04AFCA4AB340>
"""

from aiohttp import web

from tier1_metrics import cost_per_merged_claim, compute_profile, extraction_yield, fix_success_by_tag


def _parse_days(request, default=30):
    """Parse and clamp ?days= parameter. Returns 1..365."""
    try:
        days = int(request.query.get("days", str(default)))
    except (ValueError, TypeError):
        days = default
    return max(1, min(days, 365))


async def handle_yield(request):
    conn = request.app["_get_conn"]()
    days = _parse_days(request)
    return web.json_response(extraction_yield(conn, days))


async def handle_cost_per_claim(request):
    conn = request.app["_get_conn"]()
    days = _parse_days(request)
    return web.json_response(cost_per_merged_claim(conn, days))


async def handle_fix_rates(request):
    conn = request.app["_get_conn"]()
    days = _parse_days(request)
    return web.json_response(fix_success_by_tag(conn, days))


async def handle_compute_profile(request):
    conn = request.app["_get_conn"]()
    days = _parse_days(request)
    return web.json_response(compute_profile(conn, days))


def register_tier1_routes(app: web.Application, get_conn):
    app["_get_conn"] = get_conn
    app.router.add_get("/api/yield", handle_yield)
    app.router.add_get("/api/cost-per-claim", handle_cost_per_claim)
    app.router.add_get("/api/fix-rates", handle_fix_rates)
    app.router.add_get("/api/compute-profile", handle_compute_profile)