"""hello, the schema and the sync (docs/PROTOCOL.md)."""
import json
import os

from proto_client import Schema, http_json, run_sync

FIXTURES = os.path.join(os.path.dirname(__file__), "..", "fixtures", "proto2")


def items(frames, schema, section):
    key = schema.keys[section]
    out = []
    for f in frames:
        v = f["d"].get(key)
        if isinstance(v, list):
            out.extend(v)
        elif v is not None:
            out.append(v)
    return out


def test_hello_names_the_firmware_and_schema(connect):
    c = connect()
    assert c.status == 101
    hello = c.recv()
    assert hello["v"] == 2
    assert hello["t"] == 1
    assert hello["d"]["fw"]
    assert len(hello["d"]["sh"]) == 8


def test_first_sync_carries_the_schema(connect):
    c = connect()
    schema = Schema()
    hello, frames, _ = run_sync(c, schema)
    assert schema.complete()
    assert schema.type_numbers["hello"] == 1
    assert schema.keys["shadeId"] == "s"
    for f in frames:
        assert len(json.dumps(f, separators=(",", ":"))) < 4096


def test_a_client_with_the_schema_gets_none(connect, schema):
    c = connect(schema=schema.hash)
    _, frames, _ = run_sync(c)
    for f in frames:
        for k in ("T", "F", "E", "Q"):
            assert k not in f["d"]


def test_an_old_schema_hash_gets_the_schema_again(connect):
    c = connect(schema="00000000")
    schema = Schema()
    run_sync(c, schema)
    assert schema.complete()


def test_sync_holds_the_same_model_as_controller(connect, schema, host, token):
    c = connect(schema=schema.hash)
    _, frames, _ = run_sync(c)
    headers = {"apikey": token} if token else {}
    controller = http_json(host, "/controller", headers=headers)
    shades = [schema.expand(s) for s in items(frames, schema, "shades")]
    groups = [schema.expand(g) for g in items(frames, schema, "groups")]
    rooms = items(frames, schema, "rooms")
    assert sorted(s["shadeId"] for s in shades) == sorted(s["shadeId"] for s in controller["shades"])
    assert sorted(g["groupId"] for g in groups) == sorted(g["groupId"] for g in controller["groups"])
    assert len(rooms) == len(controller["rooms"])
    by_id = {s["shadeId"]: s for s in controller["shades"]}
    for s in shades:
        assert s.get("name", "") == by_id[s["shadeId"]]["name"]
        assert s.get("remoteAddress", 0) == by_id[s["shadeId"]]["remoteAddress"]
    for g in groups:
        linked = sorted(x["shadeId"] for x in next(cg for cg in controller["groups"] if cg["groupId"] == g["groupId"])["linkedShades"])
        assert sorted(g.get("linkedShades", [])) == linked
    assert len(items(frames, schema, "header")) == 1
    assert len(items(frames, schema, "status")) == 1


def test_sync_waits_for_next(connect):
    c = connect()
    c.recv()  # hello
    first = c.recv()
    assert first["t"] == 4
    # Without next nothing more comes, unless the whole sync fit one frame.
    try:
        more = c.recv(timeout=2)
    except TimeoutError:
        return
    assert more["t"] == 5, "a second sync frame came without next"


def test_resync_sends_it_all_again(connect, schema):
    c = connect(schema=schema.hash)
    _, first, _ = run_sync(c)
    c.send(schema.type_numbers["sync"])
    _, again, _ = run_sync(c, hello=False)
    assert len(items(again, schema, "shades")) == len(items(first, schema, "shades"))
    for f in again:
        assert "T" not in f["d"]


def test_record_fixtures(connect, recording):
    """With --record, saves hello and a whole first sync for the other suites."""
    if not recording:
        return
    c = connect()
    schema = Schema()
    run_sync(c, schema)
    os.makedirs(FIXTURES, exist_ok=True)
    hello = json.loads(c.raw[0])
    with open(os.path.join(FIXTURES, "hello.json"), "w", encoding="utf-8") as f:
        json.dump(hello, f, indent=1)
    with open(os.path.join(FIXTURES, "sync.json"), "w", encoding="utf-8") as f:
        json.dump([json.loads(r) for r in c.raw[1:]], f, indent=1)
    expanded = {
        "hash": hello["d"]["sh"],
        "types": {str(k): v for k, v in sorted(schema.types.items())},
        "fields": {k: {"name": n, "kind": kind, "default": d} for k, (n, kind, d) in sorted(schema.fields.items())},
        "errors": {str(k): v for k, v in sorted(schema.errors.items())},
        "feeds": {str(k): v for k, v in sorted(schema.feeds.items())},
    }
    with open(os.path.join(FIXTURES, "schema.json"), "w", encoding="utf-8") as f:
        json.dump(expanded, f, indent=1)