"""Unit tests for weekly_activity.aggregate — stubbed sources, no network."""

from __future__ import annotations

import os
import unittest
from datetime import datetime
from unittest import mock

from weekly_activity.aggregate import (
    SourceSpec,
    build_specs,
    collect_specs,
    format_combined,
)
from weekly_activity.config import (
    ActivityConfig,
    BtsSettings,
    GithubSettings,
    GitlabSettings,
    LaunchpadSettings,
)
from weekly_activity.model import ActivityReport, Section


class StubSource:
    def __init__(self, name: str = "stub", *, fail: bool = False) -> None:
        self.name = name
        self._fail = fail

    def collect(self, username: str, since: datetime, until: datetime) -> ActivityReport:
        if self._fail:
            raise RuntimeError("kaput")
        return ActivityReport(
            source=self.name,
            username=username,
            since=since,
            until=until,
            sections=[Section("Things", ["did a thing"])],
            warnings=["some query failed"],
        )


def window() -> tuple[datetime, datetime]:
    return datetime(2026, 8, 19), datetime(2026, 8, 26)


class BuildSpecsTest(unittest.TestCase):
    def test_maps_every_section_in_order(self) -> None:
        config = ActivityConfig(
            launchpad=[LaunchpadSettings(username="lp")],
            github=[GithubSettings(username="gh")],
            gitlab=[GitlabSettings(username="gl")],
            bts=[BtsSettings(email="bts@mail")],
        )
        specs = build_specs(config)
        self.assertEqual([s.name for s in specs], ["launchpad", "github", "gitlab", "bts"])
        self.assertEqual([s.username for s in specs], ["lp", "gh", "gl", "bts@mail"])

    def test_multiple_accounts_per_kind_in_listing_order(self) -> None:
        config = ActivityConfig(
            launchpad=[
                LaunchpadSettings(username="lp-a"),
                LaunchpadSettings(username="lp-b", mode="credentials"),
            ],
            github=[
                GithubSettings(username="gh-a", name="work"),
                GithubSettings(username="gh-b"),
            ],
            bts=[
                BtsSettings(email="one@x.org"),
                BtsSettings(email="two@x.org", name="two"),
            ],
        )
        specs = build_specs(config)
        # All launchpad accounts first, then github, then bts; listing order kept.
        self.assertEqual(
            [s.username for s in specs], ["lp-a", "lp-b", "gh-a", "gh-b", "one@x.org", "two@x.org"]
        )
        self.assertEqual(
            [s.name for s in specs],
            [
                "launchpad/lp-a",  # siblings force identity into the label
                "launchpad/lp-b",
                "github/work",  # explicit label wins even among siblings
                "github/gh-b",
                "bts/one@x.org",
                "bts/two",
            ],
        )

    def test_single_unnamed_account_keeps_plain_kind_label(self) -> None:
        config = ActivityConfig(github=[GithubSettings(username="only-one")])
        specs = build_specs(config)
        self.assertEqual(specs[0].name, "github")

    def test_disabled_sections_are_skipped(self) -> None:
        config = ActivityConfig(bts=[BtsSettings(email="only@one")])
        self.assertEqual([s.name for s in build_specs(config)], ["bts"])

    def test_launchpad_spec_expands_tilde_credentials_file(self) -> None:
        config = ActivityConfig(launchpad=[LaunchpadSettings(username="anon")])
        config.launchpad.append(
            LaunchpadSettings(mode="credentials", username="u", credentials_file="~/creds.json")
        )
        specs = build_specs(config)
        with mock.patch("weekly_activity.aggregate.LaunchpadSource") as fake_source:
            for spec in specs:
                spec.make()
        anon_kwargs, cred_kwargs = (call.kwargs for call in fake_source.call_args_list)
        self.assertTrue(anon_kwargs["anonymous"])
        self.assertIsNone(anon_kwargs["credentials_file"])
        self.assertFalse(cred_kwargs["anonymous"])
        self.assertEqual(cred_kwargs["credentials_file"], os.path.expanduser("~") + "/creds.json")
        # The two accounts must not share one late-bound factory.
        self.assertNotEqual(anon_kwargs["credentials_file"], cred_kwargs["credentials_file"])

    def test_github_token_env_resolved_lazily(self) -> None:
        config = ActivityConfig(github=[GithubSettings(username="u", token_env="MY_GH_TOKEN")])
        spec = build_specs(config)[0]
        with (
            mock.patch("weekly_activity.aggregate.GitHubSource") as fake_source,
            mock.patch.dict(os.environ, {"MY_GH_TOKEN": "env-token"}),
        ):
            spec.make()
        self.assertEqual(fake_source.call_args.kwargs["token"], "env-token")

    def test_github_stored_token_takes_precedence_over_env(self) -> None:
        config = ActivityConfig(github=[GithubSettings(username="u", token="tok")])
        spec = build_specs(config)[0]
        with (
            mock.patch("weekly_activity.aggregate.GitHubSource") as fake_source,
            mock.patch.dict(os.environ, {"MY_GH_TOKEN": "env-token"}),
        ):
            spec.make()
        self.assertEqual(fake_source.call_args.kwargs["token"], "tok")


class CollectAndFormatTest(unittest.TestCase):
    def test_failure_isolated_per_source(self) -> None:
        since, until = window()
        specs = [
            SourceSpec(name="alpha", username="a", make=lambda: StubSource("alpha")),
            SourceSpec(name="beta", username="b", make=lambda: StubSource("beta", fail=True)),
        ]
        collected = collect_specs(specs, since, until)
        self.assertIsNotNone(collected[0].report)
        self.assertIn("RuntimeError: kaput", collected[1].error or "")

        text = format_combined(collected, since, until)
        self.assertIn("Weekly activity report — 2 source(s)", text)
        self.assertIn("Activity report — alpha / ~a", text)
        self.assertIn("[skipped: beta — RuntimeError: kaput]", text)

    def test_heading_uses_account_label_not_bare_source_name(self) -> None:
        since, until = window()
        specs = [
            SourceSpec(name="github/work", username="acme-jane", make=lambda: StubSource("github"))
        ]
        text = format_combined(collect_specs(specs, since, until), since, until)
        self.assertIn("Activity report — github/work / ~acme-jane", text)

    def test_warning_surfaced_inside_block(self) -> None:
        since, until = window()
        specs = [SourceSpec(name="gamma", username="g", make=lambda: StubSource("gamma"))]
        text = format_combined(collect_specs(specs, since, until), since, until)
        self.assertIn("Warnings (partial data — some queries failed):", text)
        self.assertIn("some query failed", text)


if __name__ == "__main__":
    unittest.main()