"""Integration tests for gemma API endpoints"""
import os
import unittest

from dataclasses import dataclass
from typing import Callable
from unittest import mock

from gn3.app import create_app


@dataclass
class MockRedis:
    """Mock the Redis Module"""
    redis: Callable
    hget: Callable


class GemmaAPITest(unittest.TestCase):
    """Test cases for the Gemma API"""
    def setUp(self):
        self.app = create_app({
            "GENODIR": os.path.abspath(
                os.path.join(os.path.dirname(__file__),
                             "test_data/")),
            "REDIS_JOB_QUEUE": "GN3::job-queue",
            "GEMMA_WRAPPER_CMD": "gemma-wrapper"}).test_client()

    @mock.patch("gn3.api.gemma.run_cmd")
    def test_get_version(self, mock_run_cmd):
        """Test that the correct response is returned"""
        mock_run_cmd.return_value = {"status": 0, "output": "v1.9"}
        response = self.app.get("/gemma/version", follow_redirects=True)
        self.assertEqual(response.get_json(),
                         {"status": 0, "output": "v1.9"})
        self.assertEqual(response.status_code, 200)

    @mock.patch("gn3.api.gemma.redis.Redis")
    @mock.patch("gn3.api.gemma.queue_cmd")
    @mock.patch("gn3.api.gemma.generate_gemma_computation_cmd")
    def test_run_gemma_no_loco(self, mock_gemma_computation_cmd,
                               mock_queue_cmd, mock_redis):
        """Test that gemma composes the command correctly without loco"""
        _redis_conn = MockRedis(redis=mock.MagicMock(), hget=mock.MagicMock())
        mock_redis.return_value = _redis_conn
        mock_gemma_computation_cmd.side_effect = [
            ("gemma-wrapper --json -- "
             "-g genofile.txt -p "
             "test.txt -a genofile_snps.txt "
             "-gk > /tmp/gn2/"
             "bxd_K_gUFhGu4rLG7k+CXLPk1OUg.txt"),
            ("gemma-wrapper --json --input /tmp/gn2/"
             "bxd_K_gUFhGu4rLG7k+CXLPk1OUg.txt -- "
             "-a genofile_snps.txt -lmm 9 "
             "-g genofile.txt -p "
             "test.txt -a genofile_snps.txt "
             "-gk > /tmp/gn2/"
             "bxd_GWA_gUFhGu4rLG7k+CXLPk1OUg.txt")
        ]
        mock_queue_cmd.return_value = "my-unique-id"
        response = self.app.post("/gemma/k-gwa-computation", json={
            "trait_filename": "BXD.txt",
            "geno_filename": "BXD_geno",
            "values": ["X", "N/A", "X"],
            "dataset_groupname": "BXD",
            "trait_name": "Height",
            "email": "me@me.com",
            "dataset_name": "BXD"
        })
        mock_queue_cmd.assert_has_calls(
            [mock.call(conn=_redis_conn,
                       email="me@me.com",
                       job_queue="GN3::job-queue",
                       cmd=("gemma-wrapper --json -- -g "
                            "genofile.txt -p test.txt "
                            "-a genofile_snps.txt -gk > "
                            "/tmp/gn2/bxd_K_gUFhGu4rLG7k+CXLPk1OUg.txt "
                            "&& gemma-wrapper --json --input "
                            "/tmp/gn2/bxd_K_gUFhGu4rLG7k+CXLPk1OUg.txt"
                            " -- -a genofile_snps.txt -lmm 9 -g "
                            "genofile.txt -p test.txt "
                            "-a genofile_snps.txt "
                            "-gk > "
                            "/tmp/gn2/"
                            "bxd_GWA_gUFhGu4rLG7k+CXLPk1OUg.txt"))]
        )
        # mock_pheno_txt_file.return_value = "/tmp/gn2/BXD_6OBEPW."
        self.assertEqual(
            response.get_json(),
            {"unique_id": 'my-unique-id',
             "status": "queued",
             "output_file": "BXD_GWA_WzxVcfhKAn4fJnSWpsBq0g.txt"})

    @mock.patch("gn3.api.gemma.redis.Redis")
    @mock.patch("gn3.api.gemma.queue_cmd")
    def test_run_gemma_with_loco(self,
                                 mock_queue_cmd, mock_redis):
        """Test that gemma composes the command correctly with loco"""
        _redis_conn = MockRedis(redis=mock.MagicMock(), hget=mock.MagicMock())
        mock_redis.return_value = _redis_conn
        mock_queue_cmd.return_value = "my-unique-id"
        response = self.app.post("/gemma/k-gwa-computation", json={
            "trait_filename": os.path.abspath(os.path.join(
                os.path.dirname(__file__),
                "test_data/"
            )),
            "geno_filename": "BXD_geno.txt.gz",
            "values": ["X", "N/A", "X"],
            "dataset_groupname": "BXD",
            "trait_name": "Height",
            "email": "me@me.com",
            "dataset_name": "BXD",
            "loco": "1,2,3,4,5,6"
        })
        mock_queue_cmd.called_with(
            conn=_redis_conn,
            email="me@me.com",
            job_queue="GN3::job-queue",
            cmd=("gemma-wrapper --json -- -g "
                 "genofile.txt -p test.txt "
                 "-a genofile_snps.txt -gk > "
                 "/tmp/gn2/bxd_K_gUFhGu4rLG7k+CXLPk1OUg.txt "
                 "&& gemma-wrapper --json --input "
                 "/tmp/gn2/bxd_K_gUFhGu4rLG7k+CXLPk1OUg.txt"
                 " -- -a genofile_snps.txt -lmm 9 -g "
                 "genofile.txt -p test.txt "
                 "-a genofile_snps.txt "
                 "-gk > "
                 "/tmp/gn2/"
                 "bxd_GWA_gUFhGu4rLG7k+CXLPk1OUg.txt"))
        self.assertEqual(
            response.get_json(),
            {"unique_id": 'my-unique-id',
             "status": "queued",
             "output_file": "BXD_GWA_WzxVcfhKAn4fJnSWpsBq0g.txt"})

    @mock.patch("gn3.api.gemma.redis.Redis")
    def test_check_cmd_status(self, mock_redis):
        """Test that you can check the status of a given command"""
        mock_hget = mock.MagicMock()
        mock_hget.return_value = b"test"
        _redis_conn = MockRedis(redis=mock.MagicMock(), hget=mock_hget)
        mock_redis.return_value = _redis_conn
        response = self.app.get(("/gemma/status/"
                                 "cmd%3A%3A2021-02-1217-3224-3224-1234"),
                                follow_redirects=True)
        mock_hget.assert_called_once_with(
            name="cmd::2021-02-1217-3224-3224-1234",
            key="status")
        self.assertEqual(response.get_json(),
                         {"status": "test"})

    @mock.patch("gn3.api.gemma.queue_cmd")
    @mock.patch("gn3.api.gemma.generate_gemma_computation_cmd")
    @mock.patch("gn3.api.gemma.get_hash_of_files")
    @mock.patch("gn3.api.gemma.jsonfile_to_dict")
    def test_k_compute(self, mock_json, mock_hash, mock_cmd,
                       mock_queue_cmd):
        """Test /gemma/k-compute/<token>"""
        mock_queue_cmd.return_value = "my-unique-id"
        mock_json.return_value = {
            "geno": "genofile.txt",
            "pheno": "phenofile.txt",
            "snps": "snpfile.txt",
        }
        mock_hash.return_value = "hash"
        mock_cmd.return_value = ("gemma-wrapper --json -- "
                                 "-debug -g "
                                 "genotype_name.txt "
                                 "-p traitfilename.txt "
                                 "-a genotype_snps.txt "
                                 "-gk > k_output_filename.json")
        response = self.app.post("/gemma/k-compute/test-data")
        self.assertEqual(response.get_json(), {
            "output_file": "hash-k-output.json",
            "status": "queued",
            "unique_id": "my-unique-id"
        })