import json
import pytest
import httpx
import respx
from server.gitea_mcp import list_branches, get_branch, create_branch, delete_branch, list_tags

BASE = "https://gitea.test/api/v1"


@respx.mock
def test_list_branches():
    route = respx.get(f"{BASE}/repos/owner/repo/branches").mock(
        return_value=httpx.Response(200, json=[{"name": "main"}])
    )
    result = list_branches("owner", "repo")
    assert route.called
    assert result[0]["name"] == "main"
    assert dict(route.calls[0].request.url.params)["limit"] == "50"


@respx.mock
def test_get_branch():
    route = respx.get(f"{BASE}/repos/owner/repo/branches/main").mock(
        return_value=httpx.Response(200, json={"name": "main"})
    )
    result = get_branch("owner", "repo", "main")
    assert route.called
    assert result["name"] == "main"


@respx.mock
def test_get_branch_with_slash_in_name():
    route = respx.get(f"{BASE}/repos/owner/repo/branches/feature%2Ffoo").mock(
        return_value=httpx.Response(200, json={"name": "feature/foo"})
    )
    result = get_branch("owner", "repo", "feature/foo")
    assert route.called


@respx.mock
def test_get_branch_not_found():
    respx.get(f"{BASE}/repos/owner/repo/branches/missing").mock(
        return_value=httpx.Response(404, json={"message": "not found"})
    )
    with pytest.raises(RuntimeError, match="404"):
        get_branch("owner", "repo", "missing")


@respx.mock
def test_create_branch():
    route = respx.post(f"{BASE}/repos/owner/repo/branches").mock(
        return_value=httpx.Response(201, json={"name": "feature/new"})
    )
    result = create_branch("owner", "repo", "feature/new")
    assert route.called
    body = json.loads(route.calls[0].request.content)
    assert body["new_branch_name"] == "feature/new"
    assert "old_branch_name" not in body


@respx.mock
def test_create_branch_from_specific():
    route = respx.post(f"{BASE}/repos/owner/repo/branches").mock(
        return_value=httpx.Response(201, json={"name": "hotfix"})
    )
    create_branch("owner", "repo", "hotfix", old_branch_name="main")
    body = json.loads(route.calls[0].request.content)
    assert body["old_branch_name"] == "main"


@respx.mock
def test_delete_branch():
    route = respx.delete(f"{BASE}/repos/owner/repo/branches/old-branch").mock(
        return_value=httpx.Response(204)
    )
    result = delete_branch("owner", "repo", "old-branch")
    assert route.called
    assert result == {"success": True}


@respx.mock
def test_list_tags():
    route = respx.get(f"{BASE}/repos/owner/repo/tags").mock(
        return_value=httpx.Response(200, json=[{"name": "v1.0.0"}])
    )
    result = list_tags("owner", "repo")
    assert route.called
    assert result[0]["name"] == "v1.0.0"
    assert dict(route.calls[0].request.url.params)["limit"] == "20"