/* eslint-disable @typescript-eslint/no-empty-function */

import { describe, expect, mock, test } from "bun:test";

import type { Sink } from "../../../src/web/utils/logger";

import {
  AntdMessageSink,
  ConsoleSink,
  createConsoleLogger,
  createDefaultLogger,
  createMemoryLogger,
  createNoopLogger,
} from "../../../src/web/utils/logger";

describe("ConsoleSink", () => {
  test("调试环境输出 debug 级别", () => {
    const sink = new ConsoleSink(false);
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.log;
    console.log = spy;

    sink.write("debug", "测试消息", undefined, {});
    console.log = orig;

    expect(spy).toHaveBeenCalledTimes(1);
    const call = spy.mock.calls[0]!;
    expect(call[0]).toMatch(/\[Alfred:DEBUG\] 测试消息/);
  });

  test("生产环境屏蔽 debug 级别", () => {
    const sink = new ConsoleSink(true);
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.log;
    console.log = spy;

    sink.write("debug", "测试消息", undefined, {});
    console.log = orig;

    expect(spy).toHaveBeenCalledTimes(0);
  });

  test("生产环境屏蔽 info 级别", () => {
    const sink = new ConsoleSink(true);
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.log;
    console.log = spy;

    sink.write("info", "测试消息", undefined, {});
    console.log = orig;

    expect(spy).toHaveBeenCalledTimes(0);
  });

  test("生产环境保留 warn 级别", () => {
    const sink = new ConsoleSink(true);
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.warn;
    console.warn = spy;

    sink.write("warn", "测试消息", undefined, {});
    console.warn = orig;

    expect(spy).toHaveBeenCalledTimes(1);
    const call = spy.mock.calls[0]!;
    expect(call[0]).toMatch(/\[Alfred:WARN\] 测试消息/);
  });

  test("生产环境保留 error 级别", () => {
    const sink = new ConsoleSink(true);
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.error;
    console.error = spy;

    sink.write("error", "测试消息", undefined, {});
    console.error = orig;

    expect(spy).toHaveBeenCalledTimes(1);
    const call = spy.mock.calls[0]!;
    expect(call[0]).toMatch(/\[Alfred:ERROR\] 测试消息/);
  });

  test("绑定信息追加到消息后缀", () => {
    const sink = new ConsoleSink(false);
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.log;
    console.log = spy;

    sink.write("info", "测试消息", undefined, { id: "123", page: "projects" });
    console.log = orig;

    expect(spy).toHaveBeenCalledTimes(1);
    const call = spy.mock.calls[0]!;
    expect(call[0]).toMatch(/\[Alfred:INFO\] 测试消息 \[id=123\]\[page=projects\]/);
  });

  test("data 透传不序列化", () => {
    const sink = new ConsoleSink(false);
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.error;
    console.error = spy;
    const err = new Error("测试错误");

    sink.write("error", "失败", err, {});
    console.error = orig;

    expect(spy).toHaveBeenCalledTimes(1);
    const call = spy.mock.calls[0]!;
    expect(call[1]).toBe(err);
  });

  test("error 级别映射到 console.error", () => {
    const sink = new ConsoleSink(false);
    const logSpy = mock((..._args: unknown[]) => {});
    const errorSpy = mock((..._args: unknown[]) => {});
    const origLog = console.log;
    const origError = console.error;
    console.log = logSpy;
    console.error = errorSpy;

    sink.write("error", "错误", undefined, {});
    console.log = origLog;
    console.error = origError;

    expect(errorSpy).toHaveBeenCalledTimes(1);
    expect(logSpy).toHaveBeenCalledTimes(0);
  });

  test("warn 级别映射到 console.warn", () => {
    const sink = new ConsoleSink(false);
    const logSpy = mock((..._args: unknown[]) => {});
    const warnSpy = mock((..._args: unknown[]) => {});
    const origLog = console.log;
    const origWarn = console.warn;
    console.log = logSpy;
    console.warn = warnSpy;

    sink.write("warn", "警告", undefined, {});
    console.log = origLog;
    console.warn = origWarn;

    expect(warnSpy).toHaveBeenCalledTimes(1);
    expect(logSpy).toHaveBeenCalledTimes(0);
  });
});

describe("AntdMessageSink", () => {
  test("warn 级别调用 message.warning", () => {
    const warningSpy = mock(() => {});
    const messageApi = {
      error: mock(() => {}),
      info: mock(() => {}),
      loading: mock(() => {}),
      success: mock(() => {}),
      warning: warningSpy,
    };
    const sink = new AntdMessageSink(messageApi as never);

    sink.write("warn", "操作警告", undefined, {});

    expect(warningSpy).toHaveBeenCalledWith("操作警告");
  });

  test("error 级别调用 message.error", () => {
    const errorSpy = mock(() => {});
    const messageApi = {
      error: errorSpy,
      info: mock(() => {}),
      loading: mock(() => {}),
      success: mock(() => {}),
      warning: mock(() => {}),
    };
    const sink = new AntdMessageSink(messageApi as never);

    sink.write("error", "操作失败", undefined, {});

    expect(errorSpy).toHaveBeenCalledWith("操作失败");
  });

  test("debug 级别不触发 notification", () => {
    const messageApi = {
      error: mock(() => {}),
      info: mock(() => {}),
      loading: mock(() => {}),
      success: mock(() => {}),
      warning: mock(() => {}),
    };
    const sink = new AntdMessageSink(messageApi as never);

    sink.write("debug", "调试消息", undefined, {});

    expect(messageApi.info).toHaveBeenCalledTimes(0);
    expect(messageApi.warning).toHaveBeenCalledTimes(0);
    expect(messageApi.error).toHaveBeenCalledTimes(0);
  });

  test("info 级别不触发 notification", () => {
    const messageApi = {
      error: mock(() => {}),
      info: mock(() => {}),
      loading: mock(() => {}),
      success: mock(() => {}),
      warning: mock(() => {}),
    };
    const sink = new AntdMessageSink(messageApi as never);

    sink.write("info", "信息消息", undefined, {});

    expect(messageApi.info).toHaveBeenCalledTimes(0);
    expect(messageApi.warning).toHaveBeenCalledTimes(0);
    expect(messageApi.error).toHaveBeenCalledTimes(0);
  });
});

describe("NoopLogger", () => {
  test("所有方法静默不抛异常", () => {
    const logger = createNoopLogger();

    logger.debug("调试");
    logger.info("信息");
    logger.warn("警告");
    logger.error("错误");

    expect(logger.child({ page: "test" })).toBe(logger);
  });
});

describe("MemoryLogger", () => {
  test("记录所有级别的日志", () => {
    const logger = createMemoryLogger();

    logger.debug("调试");
    logger.info("信息");
    logger.warn("警告");
    logger.error("错误");

    expect(logger.entries).toEqual([
      { data: undefined, level: "debug", message: "调试" },
      { data: undefined, level: "info", message: "信息" },
      { data: undefined, level: "warn", message: "警告" },
      { data: undefined, level: "error", message: "错误" },
    ]);
  });

  test("记录附带 data 的日志", () => {
    const logger = createMemoryLogger();
    const err = new Error("测试");

    logger.error("失败", err);

    expect(logger.entries[0]).toEqual({ data: err, level: "error", message: "失败" });
  });
});

describe("DefaultLogger isProduction", () => {
  function createSpySink(): { entries: Array<{ data: unknown; level: string; message: string }>; sink: Sink } {
    const entries: Array<{ data: unknown; level: string; message: string }> = [];
    return {
      entries,
      sink: {
        write(level, message, data) {
          entries.push({ data, level, message });
        },
      },
    };
  }

  test("isProduction=true 时 debug/info 不记录", () => {
    const spy = createSpySink();
    const logger = createDefaultLogger([spy.sink], true);

    logger.debug("调试");
    logger.info("信息");

    expect(spy.entries).toHaveLength(0);
  });

  test("isProduction=true 时 warn/error 正常记录", () => {
    const spy = createSpySink();
    const logger = createDefaultLogger([spy.sink], true);

    logger.warn("警告");
    logger.error("错误");

    expect(spy.entries).toHaveLength(2);
    expect(spy.entries[0]!.level).toBe("warn");
    expect(spy.entries[1]!.level).toBe("error");
  });

  test("isProduction=false 时 debug/info 正常记录", () => {
    const spy = createSpySink();
    const logger = createDefaultLogger([spy.sink], false);

    logger.debug("调试");
    logger.info("信息");

    expect(spy.entries).toHaveLength(2);
    expect(spy.entries[0]!.level).toBe("debug");
    expect(spy.entries[1]!.level).toBe("info");
  });
});

describe("child() 作用域", () => {
  test("child 绑定信息输出到日志前缀", () => {
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.warn;
    console.warn = spy;
    const sink = new ConsoleSink(false);
    const logger = createDefaultLogger([sink], false).child({ page: "projects" });
    logger.warn("测试");

    console.warn = orig;

    expect(spy).toHaveBeenCalledTimes(1);
    const call = spy.mock.calls[0]!;
    expect(call[0]).toMatch(/\[Alfred:WARN\] 测试 \[page=projects\]/);
  });

  test("嵌套 child 追加绑定", () => {
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.warn;
    console.warn = spy;
    const sink = new ConsoleSink(false);
    const logger = createDefaultLogger([sink], false).child({ page: "projects" }).child({ action: "delete" });
    logger.warn("测试");

    console.warn = orig;

    expect(spy).toHaveBeenCalledTimes(1);
    const call = spy.mock.calls[0]!;
    expect(call[0]).toMatch(/\[Alfred:WARN\] 测试 \[page=projects\]\[action=delete\]/);
  });

  test("嵌套 child 同 key 覆盖", () => {
    const spy = mock((..._args: unknown[]) => {});
    const orig = console.warn;
    console.warn = spy;
    const sink = new ConsoleSink(false);
    const logger = createDefaultLogger([sink], false).child({ page: "projects" }).child({ page: "models" });
    logger.warn("测试");

    console.warn = orig;

    expect(spy).toHaveBeenCalledTimes(1);
    const call = spy.mock.calls[0]!;
    expect(call[0]).toMatch(/\[Alfred:WARN\] 测试 \[page=models\]/);
  });
});

describe("setLevel 运行时调整", () => {
  test("setLevel 可提高最小输出级别", () => {
    const spy = (() => {
      const entries: Array<{ level: string; message: string }> = [];
      return {
        entries,
        sink: {
          write(level: string, message: string) {
            entries.push({ level, message });
          },
        },
      };
    })();
    const logger = createDefaultLogger([spy.sink], false);

    logger.debug("调试");
    expect(spy.entries).toHaveLength(1);

    logger.setLevel("error");
    logger.debug("调试2");
    logger.warn("警告");
    logger.error("错误");

    expect(spy.entries).toHaveLength(2);
    expect(spy.entries[1]!.level).toBe("error");
    expect(spy.entries[1]!.message).toBe("错误");
  });
});

describe("createConsoleLogger", () => {
  test("返回非 null Logger 实例", () => {
    const logger = createConsoleLogger();
    expect(logger).not.toBeNull();
    expect(typeof logger.debug).toBe("function");
    expect(typeof logger.info).toBe("function");
    expect(typeof logger.warn).toBe("function");
    expect(typeof logger.error).toBe("function");
    expect(typeof logger.child).toBe("function");
    expect(typeof logger.setLevel).toBe("function");
  });
});