import logging

from repo_cloner.lib import Detector, DetectedCommit
import pytest
from unittest.mock import patch, MagicMock, PropertyMock
from git import Actor
from cloner_test_fixtures import cloner_dir_struct
from collections import namedtuple
import json


@pytest.fixture
def detector_obj(cloner_dir_struct):
	return Detector(
		cloner_dir_struct.joinpath("repos", "repo.git"),
		cloner_dir_struct.joinpath("cache"),
		"Mocked Project"
	)


some_commits = [
	"d766d9c302463257695a4d53d857a2cecd024414",
	"a2e308bb9c5e59e7a0c319dca0adf3966f3f3a60",
	"36021088abb6ebcb2202897f3f27b26b21c25068",
	"e811211f0895e9e792f569b1b38f8452e0efe42f",
	"6854c793fd2cbd848650a94b9fed4924e5e428b2",
	"2f08263b5aff30ce776bb0350503be69d45647da",
	"fc53c9d8bc9e01c63632376df51abb67ca344a89",
	"c95a862af3d13623da3d7a6b73ff79d68ff2d7ad",
	"b21c1e9e329bcdef1980462cf62c09a9e807dafd",
	"dec7ff27d658412f0088c4c3220990f1f1dc98f1",
	"ad66f820c9dfa06c3767f81cb42b1398fa61ff05",
	"b9af12b9f80b372c645b5f64c5a8f8b6a148ccfc",
	"1fda6025ed303ecf03b9afa7cce882aaddc058f9",
	"d33585f0a72d9de6c481891787e4d956b769ccb5",
	"7f685afca71731cb9276f937fc8cceca6b47b1f2",
	"af112317aa2459e88db9cb10533ea6f29818afee",
	"ddc24a34983ff43b61e1bdf27b7ec2357932e7e0",
	"7ccca22ba367433eedb226310373fd250a2af725",
	"e4843c6d2391d0b45beea81e0dd34078484b474f",
	"fe942d46c33fee0e68d2e0ed64dfa6515dbf89c4",
	"1d80638229e0a7ef62b3b9cdab9ad9f63acf6d38",
	"f968ea00a3007034ddf196285d7b60fec5e7fcf0",
	"490859dbebe02af6bd643a89b6897961674f90fd",
	"066de679c906a78f7f817ee9a48d3021fd8b6b7c",
	"2a8277687fb6dee742e6e0193ea95fcd2264fbc4",
	"8808c649a8b0a5279a2d9a46b730254cad649205",
	"ad5db175fab144a8851b712195733c4a9c00d699",
	"36d45a4c1e5ad8c47a14881c5427045c3de095d0",
	"6b0b9affedb3e3daa4df00cd54678d78ea1c1d94",
	"aa5056610ff57f73bae9633a985c6a8e41f3bc23",
]

branch_payload = [
	("doctrine", "fb96c1445ac20f224bbc6c32fdce145fb91af33d"),
	("gitlab", "26538d26f9c377b2e81cd001205bf85a8241b8be"),
	("limonade", "6c77dc4fdff0438b6badc7344e45cd0f03f5c872"),
	("master", "aa5056610ff57f73bae9633a985c6a8e41f3bc23"),
	("xlsshop", "5f59a880b4db820109f9f0420e66f7047322b12b"),
]

tag_payload = [
	("v582", "0915ef3cb1890450c66ea4104c6b4ee021e1a0d3"),
	("v584", "70508264e064bd1130a32ad8b66095f75d565b3c"),
	("v585", "70508264e064bd1130a32ad8b66095f75d565b3c"),
	("v587", "a7bdbe986402921b67443a4748f3b0f56f4aa19d"),
	("v588", "6ed749cf30f25b2b08f94970dcb598af273ca0cb"),
	("v589", "78d810634e0925e29c33ac203fa4997baeabf533"),
	("v590", "01abecc6a90f2257878f6929ec495720164d9e3d"),
	("v595", "7c7db8c441f1e4864cc7396cf633dc45ef4b2894"),
	("v597", "21a829cf4479c0482fe5ef815a2d3833cc39bc76"),
	("v601", "dd470e1072ebc79a5c4b3f1faa89885e38c0134f"),
	("test-testu", "729bbbccdb7a92abb4c9aa36b8a6ba18dc25d9b3"),
	("v1001", "02ea4a101a6fc0558ddceca03ff1241abcf3c338"),
	("v1003", "50c64c32e65a54db8403362b5bcd3a336990bc57"),
	("v1004", "e9e87bb8cb1805835f7622ef53b07909ba6ac02c"),
	("v1005", "c1ea58e1773a9e7c81a335e89f4b59739b07b672"),
	("v1006", "fde748fdad0df54d027e3243f4ae504cbdb137f0"),
	("v1007", "739737e5fd2cb8d3e2973fb6077dc97ca4e08483"),
]


def test_init(cloner_dir_struct):
	with patch("repo_cloner.lib.Detector.check_legacy_config", autospec = True) as p:
		det = Detector(
			cloner_dir_struct.joinpath("repos", "repo.git").as_posix(),
			cloner_dir_struct.joinpath("cache").as_posix(),
			"Mocked Project"
		)
		assert p.called

		assert cloner_dir_struct.joinpath("cache", "detector").exists()
		assert cloner_dir_struct.joinpath("cache", "detector").is_dir()
		assert len(det._executed) == 0

		# test loading of content

		cloner_dir_struct.joinpath("cache", "detector", "detectorExecuted").write_text(
			"commit1\ncommit2\ncommit3\n")

		det = Detector(
			cloner_dir_struct.joinpath("repos", "repo.git").as_posix(),
			cloner_dir_struct.joinpath("cache").as_posix(),
			"Mocked Project"
		)
		assert 3 == len(det._executed)
		assert not det._repo.initialized
		assert det._repo_path == cloner_dir_struct.joinpath("repos", "repo.git")

		assert det._branches.count() == 0
		assert det._tags.count() == 0


def test_ref_dir_to_json(cloner_dir_struct, caplog):
	caplog.set_level(0)
	with patch("repo_cloner.lib.Detector.check_legacy_config", autospec = True) as p:
		det = Detector(
			cloner_dir_struct.joinpath("repos", "repo.git").as_posix(),
			cloner_dir_struct.joinpath("cache").as_posix(),
			"Mocked Project"
		)
	assert p.called

	dir = cloner_dir_struct.joinpath("tst")
	dir.mkdir()
	dir.joinpath("messed-up-dir").mkdir(parents = True)
	for branch, commit in branch_payload:
		dir.joinpath(branch).write_text(f"{commit}\n")

	Detector._ref_dir_to_json(dir)

	assert dir.is_file()

	assert dir.read_text() == \
		   '[["doctrine", "fb96c1445ac20f224bbc6c32fdce145fb91af33d"], ["gitlab", ' \
		   '"26538d26f9c377b2e81cd001205bf85a8241b8be"], ["limonade", ' \
		   '"6c77dc4fdff0438b6badc7344e45cd0f03f5c872"], ["master", ' \
		   '"aa5056610ff57f73bae9633a985c6a8e41f3bc23"], ["xlsshop", ' \
		   '"5f59a880b4db820109f9f0420e66f7047322b12b"]]'


def test_check_legacy_config(detector_obj):
	branch_dir = detector_obj._detector_dir.joinpath("branches")
	tag_dir = detector_obj._detector_dir.joinpath("tags")

	branch_dir.mkdir()
	tag_dir.mkdir()

	for branch, commit in branch_payload:
		branch_dir.joinpath(branch).write_text(f"{commit}\n")
	for tag, commit in tag_payload:
		tag_dir.joinpath(tag).write_text(f"{commit}\n")

	detector_obj.check_legacy_config()

	assert branch_dir.is_file()
	assert tag_dir.is_file()

	branches = json.loads(branch_dir.read_text())
	tags = json.loads(tag_dir.read_text())

	assert dict(branches) == dict(branch_payload)
	assert dict(tags) == dict(tag_payload)


def test_initialize_caches(tmp_path):
	commits = [commit for commit in some_commits]
	[commits.append(commit) for _, commit in branch_payload]
	[commits.append(commit) for _, commit in tag_payload]

	Commit = namedtuple("Commit", ["hexsha"])
	commits.sort()
	commits_named = [Commit(commit) for commit in commits]

	branches = {}
	tags = {}

	for key, value in branch_payload:
		branches[key] = value
	for key, value in tag_payload:
		tags[key] = value

	branches = dict(sorted(branches.items()))
	tags = dict(sorted(tags.items()))

	mocks = {
		'list_commits':  MagicMock(return_value = commits_named),
		'list_branches': MagicMock(return_value = branches),
		'list_tags':     MagicMock(return_value = tags),
	}

	repo = tmp_path.joinpath("repo.git")
	cache_dir = tmp_path.joinpath("cache")
	cache_dir.mkdir()

	with patch.multiple("repo_cloner.lib.RepoTool", **mocks):
		from repo_cloner.lib import RepoTool
		det = Detector(repo, cache_dir, "Mocked Project")
		det._tags._DiskStoredRefs__refs = {"tag1": "commit"}
		det._branches._DiskStoredRefs__refs = {"branch1": "commit"}
		det.initialize_caches()

		assert RepoTool.list_commits.called
		assert RepoTool.list_branches.called
		assert RepoTool.list_tags.called

	# load files
	cache_dir = cache_dir.joinpath("detector")
	assert cache_dir.joinpath("detectorExecuted").read_text() == "\n".join(commits) + "\n"
	assert dict(json.loads(cache_dir.joinpath("branches").read_text())) == branches
	assert dict(json.loads(cache_dir.joinpath("tags").read_text())) == tags


def test_check_fingerprint(tmp_path):
	mocks = {
		'repo_fingerprint': PropertyMock(return_value = "FingerPrint"),
	}

	repo = tmp_path.joinpath("repo.git")
	cache_dir = tmp_path.joinpath("cache")
	cache_dir.mkdir()
	fp_file = cache_dir.joinpath("detectorSum")

	with patch.multiple("repo_cloner.lib.RepoTool", **mocks):
		det = Detector(repo, cache_dir, "Mocked")
		# file does not exist
		assert det.check_fingerprint()

		fp_file.touch()
		assert det.check_fingerprint()

		fp_file.write_text("FingerPrint")

		assert not det.check_fingerprint()


def test_persist_fingerprint(tmp_path):
	mocks = {
		'repo_fingerprint': PropertyMock(return_value = "FingerPrint"),
	}

	repo = tmp_path.joinpath("repo.git")
	cache_dir = tmp_path.joinpath("cache")
	cache_dir.mkdir()
	fp_file = cache_dir.joinpath("detectorSum")

	with patch.multiple("repo_cloner.lib.RepoTool", **mocks):
		det = Detector(repo, cache_dir, "Mocked")
		det.persist_fingerprint()
		assert fp_file.read_text().strip() == "FingerPrint"


def test_run(tmp_path, caplog):
	stamp = 1659533160
	executed = []

	def time():
		nonlocal stamp
		stamp += 1
		return stamp

	def exec(env: DetectedCommit):
		nonlocal executed
		executed.append(env)

	# commits - new version would have 10 more commits
	commits_old = [commit for commit in some_commits[0:25]]
	commits_new = [commit for commit in some_commits]

	# branches
	# - removed branch doctrine
	# - master targets 36d45a4c1e5ad8c47a14881c5427045c3de095d0 (not cached)
	# - new branch dupla targeting 7f685afca71731cb9276f937fc8cceca6b47b1f2
	branches_old = {}
	branches_new = {}
	for key, value in branch_payload:
		branches_old[key] = value
		if key == "doctrine":
			continue
		if key == "master":
			branches_new[key] = "36d45a4c1e5ad8c47a14881c5427045c3de095d0"
			continue
		branches_new[key] = value
	branches_new['dupla'] = "7f685afca71731cb9276f937fc8cceca6b47b1f2"

	# tags
	# - removed test testu
	# - v1001 and v1003 point to different commit
	# - new tag super pointing at 7f685afca71731cb9276f937fc8cceca6b47b1f2
	tags_old = {}
	tags_new = {}
	for key, value in tag_payload:
		tags_old[key] = value
		if key == "test-testu":
			continue
		if key == "v1001":
			tags_new[key] = "d766d9c302463257695a4d53d857a2cecd024414"
			continue
		if key == "v1003":
			tags_new[key] = "a2e308bb9c5e59e7a0c319dca0adf3966f3f3a60"
			continue
		tags_new[key] = value
	tags_new['super'] = "7f685afca71731cb9276f937fc8cceca6b47b1f2"
	tags_new['v1003.3'] = "a2e308bb9c5e59e7a0c319dca0adf3966f3f3a60"

	# new commits
	for _, commit in branches_new.items():
		if commit not in commits_new:
			commits_new.append(commit)
	for _, commit in tags_new.items():
		if commit not in commits_new:
			commits_new.append(commit)

	# storage directory
	cache_dir = tmp_path.joinpath("cache")
	detector_dir = cache_dir.joinpath("detector")
	cache_dir.mkdir()
	detector_dir.mkdir()

	# sort
	commits_old.sort()
	commits_new.sort()

	# prepare files
	# detectorExecuted
	detector_dir.joinpath("detectorExecuted").write_text("\n".join(commits_old) + "\n")
	# branches
	detector_dir.joinpath("branches").write_text(json.dumps(dict(sorted(branches_old.items()))))
	# tags
	detector_dir.joinpath("tags").write_text(json.dumps(dict(sorted(tags_old.items()))))

	Commit = namedtuple("Commit", ["hexsha", "author", "authored_date", "message"])

	author = Actor("Tester", "tester@email.me")

	commits_named_new = [Commit(commit, author, authored_date = time(), message = "Test commit")
						 for commit in commits_new]

	mocks = {
		'list_commits':     MagicMock(return_value = commits_named_new),
		'list_branches':    MagicMock(return_value = branches_new),
		'list_tags':        MagicMock(return_value = tags_new),
		'repo_fingerprint': PropertyMock(return_value = "some-fingerprint"),
	}

	repo = tmp_path.joinpath("repo.git")

	caplog.set_level(logging.DEBUG)

	with patch.multiple("repo_cloner.lib.RepoTool", **mocks):
		from repo_cloner.lib import RepoTool
		det = Detector(repo, cache_dir, "Mocked Project")

		det.run(exec)

		assert RepoTool.list_commits.called
		assert RepoTool.list_branches.called
		assert RepoTool.list_tags.called

	assert "Branch doctrine removed in source, removing from detector" in caplog.text
	assert "Tag test-testu removed in source, removing from detector" in caplog.text

	assert len(executed) == 24
	assert sum(ex.is_tag for ex in executed) == 3
	assert sum(ex.is_branch for ex in executed) == 2
	assert any(ex.branches == 'dupla' and ex.tags == 'super' for ex in executed)
	assert any(ex.tags == 'v1003, v1003.3' for ex in executed)
	assert any(ex.tags == 'v1001' for ex in executed)
	assert any(ex.branches == 'master' for ex in executed)
	assert all(ex.commit not in commits_old or ex.is_tag for ex in executed)