"""Tests for I2CP session configuration."""

import pytest


class TestSessionConfig:
    def test_defaults(self):
        from i2p_client.session_config import SessionConfig
        cfg = SessionConfig()
        assert cfg.get("inbound.quantity") == "3"
        assert cfg.get("outbound.quantity") == "3"
        assert cfg.get("inbound.length") == "3"
        assert cfg.get("outbound.length") == "3"

    def test_override(self):
        from i2p_client.session_config import SessionConfig
        cfg = SessionConfig({"inbound.quantity": "5", "custom.key": "val"})
        assert cfg.get("inbound.quantity") == "5"
        assert cfg.get("custom.key") == "val"
        # Defaults still present for non-overridden keys
        assert cfg.get("outbound.quantity") == "3"

    def test_set_get(self):
        from i2p_client.session_config import SessionConfig
        cfg = SessionConfig()
        cfg.set("my.option", "42")
        assert cfg.get("my.option") == "42"

    def test_get_missing_returns_none(self):
        from i2p_client.session_config import SessionConfig
        cfg = SessionConfig()
        assert cfg.get("nonexistent") is None

    def test_get_missing_with_default(self):
        from i2p_client.session_config import SessionConfig
        cfg = SessionConfig()
        assert cfg.get("nonexistent", "fallback") == "fallback"

    def test_merge(self):
        from i2p_client.session_config import SessionConfig
        cfg = SessionConfig({"a": "1"})
        cfg.merge({"b": "2", "a": "override"})
        assert cfg.get("a") == "override"
        assert cfg.get("b") == "2"

    def test_to_properties(self):
        from i2p_client.session_config import SessionConfig
        cfg = SessionConfig({"key": "val"})
        props = cfg.to_properties()
        assert isinstance(props, dict)
        assert "key" in props

    def test_from_properties(self):
        from i2p_client.session_config import SessionConfig
        props = {"inbound.quantity": "5", "outbound.length": "2"}
        cfg = SessionConfig.from_properties(props)
        assert cfg.get("inbound.quantity") == "5"
        assert cfg.get("outbound.length") == "2"

    def test_tunnel_options(self):
        from i2p_client.session_config import SessionConfig
        cfg = SessionConfig({
            "inbound.quantity": "2",
            "inbound.length": "1",
            "inbound.backupQuantity": "0",
            "outbound.quantity": "2",
            "outbound.length": "1",
            "outbound.backupQuantity": "0",
        })
        assert cfg.get("inbound.quantity") == "2"
        assert cfg.get("inbound.backupQuantity") == "0"

    def test_crypto_options(self):
        from i2p_client.session_config import SessionConfig
        cfg = SessionConfig({
            "crypto.tagsToSend": "40",
            "crypto.lowTagThreshold": "30",
        })
        assert cfg.get("crypto.tagsToSend") == "40"
        assert cfg.get("crypto.lowTagThreshold") == "30"

    def test_equality(self):
        from i2p_client.session_config import SessionConfig
        c1 = SessionConfig({"a": "1"})
        c2 = SessionConfig({"a": "1"})
        c3 = SessionConfig({"a": "2"})
        assert c1 == c2
        assert c1 != c3