#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Unit-, Integrations- und Mini-E2E-Tests für WP-15."""
import os
import requests
import json
from datetime import datetime, timezone

BASE = os.getenv("BASE_URL", "http://127.0.0.1:8000").rstrip("/")

# ---------- Unit ----------

def _fingerprint_local(plan_payload: dict) -> str:
    import hashlib
    core = {
        "title": plan_payload["title"],
        "total_minutes": int(plan_payload["total_minutes"]),
        "items": [
            {"exercise_external_id": it["exercise_external_id"], "duration": int(it["duration"])}
            for sec in plan_payload["sections"]
            for it in sec.get("items", [])
        ],
    }
    raw = json.dumps(core, sort_keys=True, ensure_ascii=False)
    return hashlib.sha256(raw.encode("utf-8")).hexdigest()


def test_fingerprint_unit():
    p = {
        "title": "Montag - Reaktion",
        "total_minutes": 90,
        "sections": [
            {"name": "Warmup", "minutes": 15, "items": [
                {"exercise_external_id": "ex:001", "duration": 10, "why": "Aufwärmen"}
            ]}
        ],
    }
    fp1 = _fingerprint_local(p)
    p2 = json.loads(json.dumps(p, ensure_ascii=False))
    fp2 = _fingerprint_local(p2)
    assert fp1 == fp2

# ---------- Integration / E2E ----------

def test_template_plan_e2e():
    # 1) Template anlegen
    tpl = {
        "name": "Standard 90min", "discipline": "Karate", "age_group": "Teenager",
        "target_group": "Breitensport", "total_minutes": 90,
        "sections": [
            {"name": "Warmup", "target_minutes": 15, "must_keywords": ["Reaktion"], "forbid_keywords": [], "capability_targets": {"Reaktionsfähigkeit": 2}}
        ],
        "goals": ["Technik", "Kondition"], "equipment_allowed": ["Bälle"],
        "created_by": "tester", "version": "1.0"
    }
    r1 = requests.post(f"{BASE}/plan_templates", json=tpl)
    assert r1.status_code == 200, r1.text
    tpl_id = r1.json()["id"]

    # 2) Plan anlegen (aus Template, minimal)
    plan = {
        "template_id": tpl_id,
        "title": "KW32 – Montag",
        "discipline": "Karate",
        "age_group": "Teenager",
        "target_group": "Breitensport",
        "total_minutes": 90,
        "sections": [
            {"name": "Warmup", "minutes": 15, "items": [
                {"exercise_external_id": "ex:001", "duration": 10, "why": "Aufwärmen"}
            ]}
        ],
        "goals": ["Technik", "Kondition"],
        "capability_summary": {"Reaktionsfähigkeit": 2},
        "created_by": "tester",
        "created_at": datetime.now(timezone.utc).isoformat(),
        "source": "test"
    }
    r2 = requests.post(f"{BASE}/plan", json=plan)
    assert r2.status_code == 200, r2.text
    plan_id = r2.json()["id"]

    # 3) Idempotenz – gleicher Plan → gleiche ID
    r3 = requests.post(f"{BASE}/plan", json=plan)
    assert r3.status_code == 200
    assert r3.json()["id"] == plan_id

    # 4) GET /plan/{id}
    r4 = requests.get(f"{BASE}/plan/{plan_id}")
    assert r4.status_code == 200
    js = r4.json()
    assert js["title"] == "KW32 – Montag"  # EN-Dash (–)