"""
End-to-end API tests using FastAPI TestClient.

Tests the full flow: context push → tick → reply.
"""
import sys
import os
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from fastapi.testclient import TestClient
from app.main import app

client = TestClient(app)


def test_healthz():
    r = client.get("/v1/healthz")
    assert r.status_code == 200
    data = r.json()
    assert data["status"] == "ok"
    assert "contexts_loaded" in data
    print("PASS: healthz")


def test_metadata():
    r = client.get("/v1/metadata")
    assert r.status_code == 200
    data = r.json()
    assert "team_name" in data
    assert "version" in data
    print("PASS: metadata")


def test_context_push():
    r = client.post("/v1/context", json={
        "scope": "category", "context_id": "dentists", "version": 1,
        "payload": {"slug": "dentists", "voice": {"tone": "peer_clinical", "vocab_taboo": ["cure"]},
                    "peer_stats": {"avg_ctr": 0.03}, "digest": [], "offer_catalog": []},
    })
    assert r.status_code == 200
    assert r.json()["accepted"] is True
    print("PASS: context push (category)")


def test_context_stale_version():
    # Push v2, then try v1
    client.post("/v1/context", json={
        "scope": "merchant", "context_id": "m_test", "version": 2,
        "payload": {"merchant_id": "m_test", "category_slug": "dentists",
                    "identity": {"name": "Test", "owner_first_name": "T", "languages": ["en"]},
                    "offers": [], "signals": [], "performance": {}, "customer_aggregate": {}},
    })
    r = client.post("/v1/context", json={
        "scope": "merchant", "context_id": "m_test", "version": 1,
        "payload": {},
    })
    assert r.json()["accepted"] is False
    assert r.json()["reason"] == "stale_version"
    print("PASS: stale version rejected")


def test_context_invalid_scope():
    r = client.post("/v1/context", json={
        "scope": "invalid", "context_id": "x", "version": 1, "payload": {},
    })
    assert r.json()["accepted"] is False
    assert r.json()["reason"] == "invalid_scope"
    print("PASS: invalid scope rejected")


def test_tick_empty():
    r = client.post("/v1/tick", json={"now": "2026-04-26T10:00:00Z"})
    assert r.status_code == 200
    assert "actions" in r.json()
    print("PASS: empty tick")


def test_full_flow():
    """Push category + merchant + trigger, then tick, verify action."""
    # Teardown first
    client.post("/v1/teardown")

    # Push category
    client.post("/v1/context", json={
        "scope": "category", "context_id": "dentists", "version": 1,
        "payload": {"slug": "dentists", "voice": {"tone": "peer_clinical", "vocab_taboo": []},
                    "peer_stats": {"avg_ctr": 0.03},
                    "digest": [{"id": "d1", "title": "Test research", "source": "Test J", "trial_n": 50}],
                    "offer_catalog": []},
    })
    # Push merchant
    client.post("/v1/context", json={
        "scope": "merchant", "context_id": "m_001", "version": 1,
        "payload": {"merchant_id": "m_001", "category_slug": "dentists",
                    "identity": {"name": "Test Clinic", "owner_first_name": "Doc",
                                 "languages": ["en"], "locality": "Test"},
                    "offers": [{"title": "Cleaning @ ₹299", "status": "active"}],
                    "signals": [], "performance": {"calls": 10, "directions": 20},
                    "customer_aggregate": {"total_unique_ytd": 200}},
    })
    # Push trigger
    client.post("/v1/context", json={
        "scope": "trigger", "context_id": "trg_001", "version": 1,
        "payload": {"id": "trg_001", "scope": "merchant", "kind": "research_digest",
                    "source": "external", "merchant_id": "m_001",
                    "payload": {"top_item_id": "d1"},
                    "urgency": 2, "suppression_key": "test:flow:1",
                    "expires_at": "2030-01-01T00:00:00Z"},
    })

    # Tick
    r = client.post("/v1/tick", json={
        "now": "2026-04-26T10:00:00Z",
        "available_triggers": ["trg_001"],
    })
    data = r.json()
    assert len(data["actions"]) >= 1, f"Expected actions, got: {data}"
    action = data["actions"][0]
    assert action["body"]
    assert action["merchant_id"] == "m_001"
    print(f"PASS: full flow — body: {action['body'][:60]}...")

    # Reply
    r = client.post("/v1/reply", json={
        "conversation_id": action["conversation_id"],
        "merchant_id": "m_001",
        "from_role": "merchant",
        "message": "Yes, send me the details",
    })
    reply_data = r.json()
    assert reply_data["action"] == "send"
    print(f"PASS: reply -- action={reply_data.get('action', '')}")


def test_teardown():
    r = client.post("/v1/teardown")
    assert r.status_code == 200
    assert r.json()["wiped"] is True
    # Verify contexts cleared
    h = client.get("/v1/healthz").json()
    total = sum(h["contexts_loaded"].values())
    assert total == 0
    print("PASS: teardown")


def test_root():
    r = client.get("/")
    assert r.status_code == 200
    assert "Vera Bot" in r.json()["service"]
    print("PASS: root endpoint")


if __name__ == "__main__":
    test_root()
    test_healthz()
    test_metadata()
    test_context_push()
    test_context_stale_version()
    test_context_invalid_scope()
    test_tick_empty()
    test_full_flow()
    test_teardown()
    print("\nAll endpoint tests passed!")