"""数据库层单元测试。

直接对 Database 方法调用真实 SQLite 路径，覆盖节点、实例、工作流、
版本、任务与产物的增删改查。
"""

from pathlib import Path

from app.db import Database
from wov_sdk.models import NodeManifest


def manifest() -> NodeManifest:
    """构造最小合法节点 manifest 供 CRUD 测试复用。"""
    return NodeManifest(
        id="echo",
        name="Echo",
        version="1.0.0",
        capability="echo",
        command=["python", "-m", "echo"],
        repo_dir="wov-node-echo",
    )


def test_node_crud(tmp_path) -> None:
    """验证节点的注册、覆盖更新与删除。"""
    db = Database(tmp_path / "wov.db")
    assert db.get_node("echo") is None
    assert db.list_nodes() == []

    db.upsert_node(manifest())
    assert db.get_node("echo") == manifest()
    assert db.list_nodes() == [manifest()]

    updated = manifest()
    updated.version = "1.1.0"
    db.upsert_node(updated)
    assert db.get_node("echo").version == "1.1.0"

    db.delete_node("echo")
    assert db.get_node("echo") is None


def test_instance_crud(tmp_path) -> None:
    """验证节点实例记录的插入、状态更新与删除。"""
    db = Database(tmp_path / "wov.db")
    db.upsert_node(manifest())
    instance = {
        "id": "ni_1",
        "node_id": "echo",
        "status": "ready",
        "pid": 123,
        "address": "http://127.0.0.1:1",
        "started_at": "2026-01-01T00:00:00+00:00",
        "last_used_at": "2026-01-01T00:00:00+00:00",
        "busy_since": None,
        "error": None,
    }
    db.upsert_instance(instance)
    assert db.list_instances() == [instance]

    instance["status"] = "stopped"
    db.upsert_instance(instance)
    assert db.list_instances()[0]["status"] == "stopped"

    db.delete_instance("ni_1")
    assert db.list_instances() == []


def test_workflow_crud(tmp_path) -> None:
    """验证工作流概要的插入、发布标记更新与删除。"""
    db = Database(tmp_path / "wov.db")
    workflow = {
        "id": "demo",
        "name": "Demo",
        "description": "desc",
        "published": 0,
        "latest_version": 0,
    }
    db.upsert_workflow(workflow)
    assert db.get_workflow("demo")["name"] == "Demo"
    assert [item["id"] for item in db.list_workflows()] == ["demo"]

    db.upsert_workflow({**workflow, "published": 1, "latest_version": 1})
    assert db.get_workflow("demo")["published"] == 1

    db.delete_workflow("demo")
    assert db.get_workflow("demo") is None


def test_workflow_versions(tmp_path) -> None:
    """验证工作流版本的写入、最新版本查询与列表。"""
    db = Database(tmp_path / "wov.db")
    db.upsert_workflow(
        {"id": "demo", "name": "Demo", "published": 1, "latest_version": 2}
    )
    definition = {"name": "Demo", "version": 1, "nodes": [], "edges": []}
    db.create_workflow_version("demo", 1, definition)
    db.create_workflow_version("demo", 2, {**definition, "version": 2})

    latest = db.get_latest_workflow_version("demo")
    assert latest["version"] == 2
    assert latest["definition"]["version"] == 2

    version = db.get_workflow_version("demo", 1)
    assert version["version"] == 1
    assert db.get_workflow_version("demo", 99) is None
    assert len(db.list_workflow_versions("demo")) == 2

    empty_db = Database(tmp_path / "empty.db")
    assert empty_db.get_latest_workflow_version("missing") is None


def test_run_and_artifact_crud(tmp_path) -> None:
    """验证任务与产物的创建、查询、更新与删除。"""
    db = Database(tmp_path / "wov.db")
    db.upsert_workflow({"id": "demo", "name": "Demo", "published": 1, "latest_version": 1})
    now = "2026-01-01T00:00:00+00:00"
    db.create_run(
        {
            "id": "run_1",
            "workflow_id": "demo",
            "workflow_version": 1,
            "status": "QUEUED",
            "progress": 0,
            "input_uri": "in.txt",
            "created_at": now,
            "updated_at": now,
        }
    )
    assert db.get_run("run_1")["status"] == "QUEUED"
    assert db.next_queued_run()["id"] == "run_1"

    db.update_run("run_1", status="RUNNING", progress=0.5, updated_at=now)
    db.update_run("run_1")
    assert db.get_run("run_1")["status"] == "RUNNING"
    assert db.get_run("run_1")["progress"] == 0.5
    assert db.next_queued_run() is None
    assert len(db.list_runs()) == 1

    db.create_artifact(
        {
            "run_id": "run_1",
            "node_id": "echo",
            "name": "result",
            "uri": "out.txt",
            "mime_type": "text/plain",
            "size": 3,
        }
    )
    assert db.get_artifact("run_1", "result")["uri"] == "out.txt"
    assert db.get_artifact("run_1", "missing") is None
    assert len(db.list_artifacts("run_1")) == 1

    db.delete_run_artifacts("run_1")
    assert db.list_artifacts("run_1") == []


def test_reset_run_clears_error_and_artifacts(tmp_path) -> None:
    """验证 reset_run 会把失败任务恢复到排队状态并清空旧产物。"""
    db = Database(tmp_path / "wov.db")
    db.upsert_workflow({"id": "demo", "name": "Demo", "published": 1, "latest_version": 1})
    now = "2026-01-01T00:00:00+00:00"
    db.create_run(
        {
            "id": "run_1",
            "workflow_id": "demo",
            "workflow_version": 1,
            "status": "FAILED",
            "progress": 0.75,
            "current_node_id": "translate",
            "error": "timed out",
            "input_uri": "in.txt",
            "created_at": now,
            "updated_at": now,
        }
    )
    db.create_artifact(
        {
            "run_id": "run_1",
            "node_id": "asr",
            "name": "asr.srt_uri",
            "uri": "out.srt",
            "mime_type": "application/x-subrip",
            "size": 3,
        }
    )

    db.reset_run("run_1", "2026-01-02T00:00:00+00:00")

    run = db.get_run("run_1")
    assert run["status"] == "QUEUED"
    assert run["progress"] == 0
    assert run["current_node_id"] is None
    assert run["error"] is None
    assert run["updated_at"] == "2026-01-02T00:00:00+00:00"
    assert run["created_at"] == now
    assert db.list_artifacts("run_1") == []