from __future__ import annotations

import tempfile
import unittest
from unittest.mock import patch
from pathlib import Path

from biliup_next.core.config import SettingsService


class SettingsServiceTests(unittest.TestCase):
    def test_load_seeds_settings_from_standalone_example_when_missing(self) -> None:
        with tempfile.TemporaryDirectory() as tmpdir:
            root = Path(tmpdir)
            config_dir = root / "config"
            config_dir.mkdir(parents=True, exist_ok=True)
            (config_dir / "settings.schema.json").write_text(
                """
                {
                  "groups": {
                    "runtime": {
                      "database_path": {"type": "string", "default": "data/workspace/biliup_next.db"}
                    },
                    "paths": {
                      "stage_dir": {"type": "string", "default": "data/workspace/stage"},
                      "backup_dir": {"type": "string", "default": "data/workspace/backup"},
                      "session_dir": {"type": "string", "default": "data/workspace/session"},
                      "cookies_file": {"type": "string", "default": "runtime/cookies.json"},
                      "upload_config_file": {"type": "string", "default": "runtime/upload_config.json"}
                    },
                    "ingest": {
                      "ffprobe_bin": {"type": "string", "default": "ffprobe"},
                      "yt_dlp_cmd": {"type": "string", "default": "yt-dlp"},
                      "yt_dlp_format": {"type": "string", "default": ""}
                    },
                    "transcribe": {
                      "ffmpeg_bin": {"type": "string", "default": "ffmpeg"}
                    },
                    "split": {
                      "ffmpeg_bin": {"type": "string", "default": "ffmpeg"}
                    },
                    "song_detect": {
                      "codex_cmd": {"type": "string", "default": "codex"},
                      "qwen_cmd": {"type": "string", "default": "qwen"}
                    },
                    "publish": {
                      "biliup_path": {"type": "string", "default": "runtime/biliup"},
                      "cookie_file": {"type": "string", "default": "runtime/cookies.json"}
                    }
                  }
                }
                """,
                encoding="utf-8",
            )
            (config_dir / "settings.standalone.example.json").write_text(
                """
                {
                  "runtime": {"database_path": "data/workspace/biliup_next.db"},
                  "paths": {
                    "stage_dir": "data/workspace/stage",
                    "backup_dir": "data/workspace/backup",
                    "session_dir": "data/workspace/session",
                    "cookies_file": "runtime/cookies.json",
                    "upload_config_file": "runtime/upload_config.json"
                  },
                  "ingest": {"ffprobe_bin": "ffprobe", "yt_dlp_cmd": "yt-dlp", "yt_dlp_format": ""},
                  "transcribe": {"ffmpeg_bin": "ffmpeg"},
                  "split": {"ffmpeg_bin": "ffmpeg"},
                  "song_detect": {"codex_cmd": "codex", "qwen_cmd": "qwen"},
                  "publish": {"biliup_path": "runtime/biliup", "cookie_file": "runtime/cookies.json"}
                }
                """,
                encoding="utf-8",
            )

            bundle = SettingsService(root).load()

            self.assertTrue((config_dir / "settings.json").exists())
            self.assertTrue((config_dir / "settings.staged.json").exists())
            self.assertEqual(bundle.settings["paths"]["cookies_file"], str((root / "runtime" / "cookies.json").resolve()))

    def test_load_applies_environment_overrides_before_path_normalization(self) -> None:
        with tempfile.TemporaryDirectory() as tmpdir:
            root = Path(tmpdir)
            config_dir = root / "config"
            config_dir.mkdir(parents=True, exist_ok=True)
            (config_dir / "settings.schema.json").write_text(
                """
                {
                  "groups": {
                    "runtime": {
                      "database_path": {"type": "string", "default": "data/workspace/biliup_next.db"}
                    },
                    "paths": {
                      "stage_dir": {"type": "string", "default": "data/workspace/stage"},
                      "backup_dir": {"type": "string", "default": "data/workspace/backup"},
                      "session_dir": {"type": "string", "default": "data/workspace/session"},
                      "cookies_file": {"type": "string", "default": "runtime/cookies.json"},
                      "upload_config_file": {"type": "string", "default": "runtime/upload_config.json"}
                    },
                    "ingest": {
                      "ffprobe_bin": {"type": "string", "default": "ffprobe"},
                      "yt_dlp_cmd": {"type": "string", "default": "yt-dlp"},
                      "yt_dlp_format": {"type": "string", "default": ""}
                    },
                    "transcribe": {
                      "groq_api_key": {"type": "string", "default": "", "sensitive": true},
                      "ffmpeg_bin": {"type": "string", "default": "ffmpeg"}
                    },
                    "split": {
                      "ffmpeg_bin": {"type": "string", "default": "ffmpeg"}
                    },
                    "song_detect": {
                      "codex_cmd": {"type": "string", "default": "codex"},
                      "qwen_cmd": {"type": "string", "default": "qwen"}
                    },
                    "publish": {
                      "biliup_path": {"type": "string", "default": "runtime/biliup"},
                      "cookie_file": {"type": "string", "default": "runtime/cookies.json"}
                    },
                    "collection": {
                      "season_id_a": {"type": "integer", "default": 0},
                      "season_id_b": {"type": "integer", "default": 0}
                    }
                  }
                }
                """,
                encoding="utf-8",
            )
            (config_dir / "settings.standalone.example.json").write_text(
                """
                {
                  "runtime": {"database_path": "data/workspace/biliup_next.db"},
                  "paths": {
                    "stage_dir": "data/workspace/stage",
                    "backup_dir": "data/workspace/backup",
                    "session_dir": "data/workspace/session",
                    "cookies_file": "runtime/cookies.json",
                    "upload_config_file": "runtime/upload_config.json"
                  },
                  "ingest": {"ffprobe_bin": "ffprobe", "yt_dlp_cmd": "yt-dlp", "yt_dlp_format": ""},
                  "transcribe": {"groq_api_key": "", "ffmpeg_bin": "ffmpeg"},
                  "split": {"ffmpeg_bin": "ffmpeg"},
                  "song_detect": {"codex_cmd": "codex", "qwen_cmd": "qwen"},
                  "publish": {"biliup_path": "runtime/biliup", "cookie_file": "runtime/cookies.json"},
                  "collection": {"season_id_a": 0, "season_id_b": 0}
                }
                """,
                encoding="utf-8",
            )

            with patch.dict(
                "os.environ",
                {
                    "GROQ_API_KEY": "gsk_test",
                    "COLLECTION_SEASON_ID_A": "7196643",
                    "BILIUP_NEXT__COLLECTION__SEASON_ID_B": "7196624",
                    "BILIUP_NEXT__PATHS__STAGE_DIR": "data/custom-stage",
                },
                clear=True,
            ):
                bundle = SettingsService(root).load()

            self.assertEqual(bundle.settings["transcribe"]["groq_api_key"], "gsk_test")
            self.assertEqual(bundle.settings["collection"]["season_id_a"], 7196643)
            self.assertEqual(bundle.settings["collection"]["season_id_b"], 7196624)
            self.assertEqual(bundle.settings["paths"]["stage_dir"], str((root / "data" / "custom-stage").resolve()))

    def test_empty_environment_values_do_not_override_settings(self) -> None:
        with tempfile.TemporaryDirectory() as tmpdir:
            root = Path(tmpdir)
            config_dir = root / "config"
            config_dir.mkdir(parents=True, exist_ok=True)
            (config_dir / "settings.schema.json").write_text(
                """
                {
                  "groups": {
                    "runtime": {"database_path": {"type": "string", "default": "data/workspace/biliup_next.db"}},
                    "paths": {
                      "stage_dir": {"type": "string", "default": "data/workspace/stage"},
                      "backup_dir": {"type": "string", "default": "data/workspace/backup"},
                      "session_dir": {"type": "string", "default": "data/workspace/session"},
                      "cookies_file": {"type": "string", "default": "runtime/cookies.json"},
                      "upload_config_file": {"type": "string", "default": "runtime/upload_config.json"}
                    },
                    "ingest": {"ffprobe_bin": {"type": "string", "default": "ffprobe"}, "yt_dlp_cmd": {"type": "string", "default": "yt-dlp"}},
                    "transcribe": {"groq_api_key": {"type": "string", "default": ""}, "ffmpeg_bin": {"type": "string", "default": "ffmpeg"}},
                    "split": {"ffmpeg_bin": {"type": "string", "default": "ffmpeg"}},
                    "song_detect": {"codex_cmd": {"type": "string", "default": "codex"}, "qwen_cmd": {"type": "string", "default": "qwen"}},
                    "publish": {"biliup_path": {"type": "string", "default": "runtime/biliup"}, "cookie_file": {"type": "string", "default": "runtime/cookies.json"}}
                  }
                }
                """,
                encoding="utf-8",
            )
            (config_dir / "settings.standalone.example.json").write_text(
                """
                {
                  "runtime": {"database_path": "data/workspace/biliup_next.db"},
                  "paths": {
                    "stage_dir": "data/workspace/stage",
                    "backup_dir": "data/workspace/backup",
                    "session_dir": "data/workspace/session",
                    "cookies_file": "runtime/cookies.json",
                    "upload_config_file": "runtime/upload_config.json"
                  },
                  "ingest": {"ffprobe_bin": "ffprobe", "yt_dlp_cmd": "yt-dlp"},
                  "transcribe": {"groq_api_key": "from-file", "ffmpeg_bin": "ffmpeg"},
                  "split": {"ffmpeg_bin": "ffmpeg"},
                  "song_detect": {"codex_cmd": "codex", "qwen_cmd": "qwen"},
                  "publish": {"biliup_path": "runtime/biliup", "cookie_file": "runtime/cookies.json"}
                }
                """,
                encoding="utf-8",
            )

            with patch.dict("os.environ", {"GROQ_API_KEY": ""}, clear=True):
                bundle = SettingsService(root).load()

            self.assertEqual(bundle.settings["transcribe"]["groq_api_key"], "from-file")


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