"""
API endpoint tests for Scenar Creator v3.
"""

import pytest
from fastapi.testclient import TestClient

from app.main import app


@pytest.fixture
def client():
    return TestClient(app)


def make_valid_doc():
    return {
        "version": "1.0",
        "event": {"title": "Test Event"},
        "program_types": [{"id": "ws", "name": "Workshop", "color": "#FF0000"}],
        "blocks": [{
            "id": "b1",
            "date": "2026-03-01",
            "start": "09:00",
            "end": "10:00",
            "title": "Opening",
            "type_id": "ws"
        }]
    }


def test_health(client):
    r = client.get("/api/health")
    assert r.status_code == 200
    data = r.json()
    assert data["status"] == "ok"
    assert data["version"] == "3.0.0"


def test_root_returns_html(client):
    r = client.get("/")
    assert r.status_code == 200
    assert "text/html" in r.headers["content-type"]
    assert "Scen" in r.text and "Creator" in r.text


def test_validate_valid(client):
    doc = make_valid_doc()
    r = client.post("/api/validate", json=doc)
    assert r.status_code == 200
    data = r.json()
    assert data["valid"] is True
    assert data["errors"] == []


def test_validate_unknown_type(client):
    doc = make_valid_doc()
    doc["blocks"][0]["type_id"] = "UNKNOWN"
    r = client.post("/api/validate", json=doc)
    assert r.status_code == 200
    data = r.json()
    assert data["valid"] is False
    assert any("UNKNOWN" in e for e in data["errors"])


def test_validate_bad_time_order(client):
    doc = make_valid_doc()
    doc["blocks"][0]["start"] = "10:00"
    doc["blocks"][0]["end"] = "09:00"
    r = client.post("/api/validate", json=doc)
    assert r.status_code == 200
    data = r.json()
    assert data["valid"] is False
    assert any("start time" in e for e in data["errors"])


def test_validate_no_blocks(client):
    doc = make_valid_doc()
    doc["blocks"] = []
    r = client.post("/api/validate", json=doc)
    assert r.status_code == 200
    data = r.json()
    assert data["valid"] is False


def test_validate_no_types(client):
    doc = make_valid_doc()
    doc["program_types"] = []
    r = client.post("/api/validate", json=doc)
    assert r.status_code == 200
    data = r.json()
    assert data["valid"] is False


def test_sample_endpoint(client):
    r = client.get("/api/sample")
    assert r.status_code == 200
    data = r.json()
    assert data["version"] == "1.0"
    assert data["event"]["title"] == "Zimní výjezd oddílu"
    assert len(data["program_types"]) == 3
    assert len(data["blocks"]) >= 8


def test_sample_blocks_valid(client):
    r = client.get("/api/sample")
    data = r.json()
    type_ids = {pt["id"] for pt in data["program_types"]}
    for block in data["blocks"]:
        assert block["type_id"] in type_ids
        assert block["start"] < block["end"]


def test_generate_pdf(client):
    doc = make_valid_doc()
    r = client.post("/api/generate-pdf", json=doc)
    assert r.status_code == 200
    assert r.headers["content-type"] == "application/pdf"
    assert r.content[:5] == b'%PDF-'


def test_generate_pdf_no_blocks(client):
    doc = make_valid_doc()
    doc["blocks"] = []
    r = client.post("/api/generate-pdf", json=doc)
    assert r.status_code == 422


def test_generate_pdf_multiday(client):
    doc = make_valid_doc()
    doc["blocks"].append({
        "id": "b2",
        "date": "2026-03-02",
        "start": "14:00",
        "end": "15:00",
        "title": "Day 2 Session",
        "type_id": "ws"
    })
    r = client.post("/api/generate-pdf", json=doc)
    assert r.status_code == 200
    assert r.content[:5] == b'%PDF-'


def test_swagger_docs(client):
    r = client.get("/docs")
    assert r.status_code == 200