import { ChannelType } from "discord-api-types/v10";
import { beforeEach, describe, expect, it, vi } from "vitest";
import * as commandRegistryModule from "../../auto-reply/commands-registry.js";
import type {
  ChatCommandDefinition,
  CommandArgsParsing,
} from "../../auto-reply/commands-registry.types.js";
import type { ModelsProviderData } from "../../auto-reply/reply/commands-models.js";
import * as dispatcherModule from "../../auto-reply/reply/provider-dispatcher.js";
import type { OpenClawConfig } from "../../config/config.js";
import * as timeoutModule from "../../utils/with-timeout.js";
import * as modelPickerPreferencesModule from "./model-picker-preferences.js";
import * as modelPickerModule from "./model-picker.js";
import {
  createDiscordModelPickerFallbackButton,
  createDiscordModelPickerFallbackSelect,
} from "./native-command.js";

function createModelsProviderData(entries: Record<string, string[]>): ModelsProviderData {
  const byProvider = new Map<string, Set<string>>();
  for (const [provider, models] of Object.entries(entries)) {
    byProvider.set(provider, new Set(models));
  }
  const providers = Object.keys(entries).toSorted();
  return {
    byProvider,
    providers,
    resolvedDefault: {
      provider: providers[0] ?? "openai",
      model: entries[providers[0] ?? "openai"]?.[0] ?? "gpt-4o",
    },
  };
}

type ModelPickerContext = Parameters<typeof createDiscordModelPickerFallbackButton>[0];
type PickerButton = ReturnType<typeof createDiscordModelPickerFallbackButton>;
type PickerSelect = ReturnType<typeof createDiscordModelPickerFallbackSelect>;
type PickerButtonInteraction = Parameters<PickerButton["run"]>[0];
type PickerButtonData = Parameters<PickerButton["run"]>[1];
type PickerSelectInteraction = Parameters<PickerSelect["run"]>[0];
type PickerSelectData = Parameters<PickerSelect["run"]>[1];

type MockInteraction = {
  user: { id: string; username: string; globalName: string };
  channel: { type: ChannelType; id: string };
  guild: null;
  rawData: { id: string; member: { roles: string[] } };
  values?: string[];
  reply: ReturnType<typeof vi.fn>;
  followUp: ReturnType<typeof vi.fn>;
  update: ReturnType<typeof vi.fn>;
  acknowledge: ReturnType<typeof vi.fn>;
  client: object;
};

function createModelPickerContext(): ModelPickerContext {
  const cfg = {
    channels: {
      discord: {
        dm: {
          enabled: true,
          policy: "open",
        },
      },
    },
  } as unknown as OpenClawConfig;

  return {
    cfg,
    discordConfig: cfg.channels?.discord ?? {},
    accountId: "default",
    sessionPrefix: "discord:slash",
  };
}

function createInteraction(params?: { userId?: string; values?: string[] }): MockInteraction {
  const userId = params?.userId ?? "owner";
  return {
    user: {
      id: userId,
      username: "tester",
      globalName: "Tester",
    },
    channel: {
      type: ChannelType.DM,
      id: "dm-1",
    },
    guild: null,
    rawData: {
      id: "interaction-1",
      member: { roles: [] },
    },
    values: params?.values,
    reply: vi.fn().mockResolvedValue({ ok: true }),
    followUp: vi.fn().mockResolvedValue({ ok: true }),
    update: vi.fn().mockResolvedValue({ ok: true }),
    acknowledge: vi.fn().mockResolvedValue({ ok: true }),
    client: {},
  };
}

describe("Discord model picker interactions", () => {
  beforeEach(() => {
    vi.restoreAllMocks();
  });

  it("registers distinct fallback ids for button and select handlers", () => {
    const context = createModelPickerContext();
    const button = createDiscordModelPickerFallbackButton(context);
    const select = createDiscordModelPickerFallbackSelect(context);

    expect(button.customId).not.toBe(select.customId);
    expect(button.customId.split(":")[0]).toBe(select.customId.split(":")[0]);
  });

  it("ignores interactions from users other than the picker owner", async () => {
    const context = createModelPickerContext();
    const loadSpy = vi.spyOn(modelPickerModule, "loadDiscordModelPickerData");
    const button = createDiscordModelPickerFallbackButton(context);
    const interaction = createInteraction({ userId: "intruder" });

    const data: PickerButtonData = {
      cmd: "model",
      act: "back",
      view: "providers",
      u: "owner",
      pg: "1",
    };

    await button.run(interaction as unknown as PickerButtonInteraction, data);

    expect(interaction.acknowledge).toHaveBeenCalledTimes(1);
    expect(interaction.update).not.toHaveBeenCalled();
    expect(loadSpy).not.toHaveBeenCalled();
  });

  it("requires submit click before routing selected model through /model pipeline", async () => {
    const context = createModelPickerContext();
    const pickerData = createModelsProviderData({
      openai: ["gpt-4.1", "gpt-4o"],
      anthropic: ["claude-sonnet-4-5"],
    });
    const modelCommand: ChatCommandDefinition = {
      key: "model",
      nativeName: "model",
      description: "Switch model",
      textAliases: ["/model"],
      acceptsArgs: true,
      argsParsing: "none" as CommandArgsParsing,
      scope: "native",
    };

    vi.spyOn(modelPickerModule, "loadDiscordModelPickerData").mockResolvedValue(pickerData);
    vi.spyOn(commandRegistryModule, "findCommandByNativeName").mockImplementation((name) =>
      name === "model" ? modelCommand : undefined,
    );
    vi.spyOn(commandRegistryModule, "listChatCommands").mockReturnValue([modelCommand]);
    vi.spyOn(commandRegistryModule, "resolveCommandArgMenu").mockReturnValue(null);

    const dispatchSpy = vi
      .spyOn(dispatcherModule, "dispatchReplyWithDispatcher")
      .mockResolvedValue({} as never);

    const select = createDiscordModelPickerFallbackSelect(context);
    const selectInteraction = createInteraction({
      userId: "owner",
      values: ["gpt-4o"],
    });

    const selectData: PickerSelectData = {
      cmd: "model",
      act: "model",
      view: "models",
      u: "owner",
      p: "openai",
      pg: "1",
    };

    await select.run(selectInteraction as unknown as PickerSelectInteraction, selectData);

    expect(selectInteraction.update).toHaveBeenCalledTimes(1);
    expect(dispatchSpy).not.toHaveBeenCalled();

    const button = createDiscordModelPickerFallbackButton(context);
    const submitInteraction = createInteraction({ userId: "owner" });
    const submitData: PickerButtonData = {
      cmd: "model",
      act: "submit",
      view: "models",
      u: "owner",
      p: "openai",
      pg: "1",
      mi: "2",
    };

    await button.run(submitInteraction as unknown as PickerButtonInteraction, submitData);

    expect(submitInteraction.update).toHaveBeenCalledTimes(1);
    expect(dispatchSpy).toHaveBeenCalledTimes(1);

    const dispatchCall = dispatchSpy.mock.calls[0]?.[0] as {
      ctx?: {
        CommandBody?: string;
        CommandArgs?: { values?: { model?: string } };
        CommandTargetSessionKey?: string;
      };
    };
    expect(dispatchCall.ctx?.CommandBody).toBe("/model openai/gpt-4o");
    expect(dispatchCall.ctx?.CommandArgs?.values?.model).toBe("openai/gpt-4o");
    expect(dispatchCall.ctx?.CommandTargetSessionKey).toBeDefined();
  });

  it("shows timeout status and skips recents write when apply is still processing", async () => {
    const context = createModelPickerContext();
    const pickerData = createModelsProviderData({
      openai: ["gpt-4.1", "gpt-4o"],
      anthropic: ["claude-sonnet-4-5"],
    });
    const modelCommand: ChatCommandDefinition = {
      key: "model",
      nativeName: "model",
      description: "Switch model",
      textAliases: ["/model"],
      acceptsArgs: true,
      argsParsing: "none" as CommandArgsParsing,
      scope: "native",
    };

    vi.spyOn(modelPickerModule, "loadDiscordModelPickerData").mockResolvedValue(pickerData);
    vi.spyOn(commandRegistryModule, "findCommandByNativeName").mockImplementation((name) =>
      name === "model" ? modelCommand : undefined,
    );
    vi.spyOn(commandRegistryModule, "listChatCommands").mockReturnValue([modelCommand]);
    vi.spyOn(commandRegistryModule, "resolveCommandArgMenu").mockReturnValue(null);

    const recordRecentSpy = vi
      .spyOn(modelPickerPreferencesModule, "recordDiscordModelPickerRecentModel")
      .mockResolvedValue();
    const dispatchSpy = vi
      .spyOn(dispatcherModule, "dispatchReplyWithDispatcher")
      .mockImplementation(() => new Promise(() => {}) as never);
    const withTimeoutSpy = vi
      .spyOn(timeoutModule, "withTimeout")
      .mockRejectedValue(new Error("timeout"));

    const select = createDiscordModelPickerFallbackSelect(context);
    const selectInteraction = createInteraction({
      userId: "owner",
      values: ["gpt-4o"],
    });

    const selectData: PickerSelectData = {
      cmd: "model",
      act: "model",
      view: "models",
      u: "owner",
      p: "openai",
      pg: "1",
    };

    await select.run(selectInteraction as unknown as PickerSelectInteraction, selectData);

    const button = createDiscordModelPickerFallbackButton(context);
    const submitInteraction = createInteraction({ userId: "owner" });
    const submitData: PickerButtonData = {
      cmd: "model",
      act: "submit",
      view: "models",
      u: "owner",
      p: "openai",
      pg: "1",
      mi: "2",
    };

    await button.run(submitInteraction as unknown as PickerButtonInteraction, submitData);

    expect(withTimeoutSpy).toHaveBeenCalledTimes(1);
    expect(dispatchSpy).toHaveBeenCalledTimes(1);
    expect(submitInteraction.followUp).toHaveBeenCalledTimes(1);
    const followUpPayload = submitInteraction.followUp.mock.calls[0]?.[0] as {
      components?: Array<{ components?: Array<{ content?: string }> }>;
    };
    const followUpText = JSON.stringify(followUpPayload);
    expect(followUpText).toContain("still processing");
    expect(recordRecentSpy).not.toHaveBeenCalled();
  });

  it("clicking Recents button renders recents view", async () => {
    const context = createModelPickerContext();
    const pickerData = createModelsProviderData({
      openai: ["gpt-4.1", "gpt-4o"],
      anthropic: ["claude-sonnet-4-5"],
    });

    vi.spyOn(modelPickerModule, "loadDiscordModelPickerData").mockResolvedValue(pickerData);
    vi.spyOn(modelPickerPreferencesModule, "readDiscordModelPickerRecentModels").mockResolvedValue([
      "openai/gpt-4o",
      "anthropic/claude-sonnet-4-5",
    ]);

    const button = createDiscordModelPickerFallbackButton(context);
    const interaction = createInteraction({ userId: "owner" });

    const data: PickerButtonData = {
      cmd: "model",
      act: "recents",
      view: "recents",
      u: "owner",
      p: "openai",
      pg: "1",
    };

    await button.run(interaction as unknown as PickerButtonInteraction, data);

    expect(interaction.update).toHaveBeenCalledTimes(1);
    const updatePayload = interaction.update.mock.calls[0]?.[0];
    expect(updatePayload).toBeDefined();
    expect(updatePayload.components).toBeDefined();
  });

  it("clicking recents model button applies model through /model pipeline", async () => {
    const context = createModelPickerContext();
    const pickerData = createModelsProviderData({
      openai: ["gpt-4.1", "gpt-4o"],
      anthropic: ["claude-sonnet-4-5"],
    });
    const modelCommand: ChatCommandDefinition = {
      key: "model",
      nativeName: "model",
      description: "Switch model",
      textAliases: ["/model"],
      acceptsArgs: true,
      argsParsing: "none" as CommandArgsParsing,
      scope: "native",
    };

    vi.spyOn(modelPickerModule, "loadDiscordModelPickerData").mockResolvedValue(pickerData);
    vi.spyOn(modelPickerPreferencesModule, "readDiscordModelPickerRecentModels").mockResolvedValue([
      "openai/gpt-4o",
      "anthropic/claude-sonnet-4-5",
    ]);
    vi.spyOn(commandRegistryModule, "findCommandByNativeName").mockImplementation((name) =>
      name === "model" ? modelCommand : (undefined as never),
    );
    vi.spyOn(commandRegistryModule, "listChatCommands").mockReturnValue([modelCommand]);
    vi.spyOn(commandRegistryModule, "resolveCommandArgMenu").mockReturnValue(null);

    const dispatchSpy = vi
      .spyOn(dispatcherModule, "dispatchReplyWithDispatcher")
      .mockResolvedValue({} as never);

    const button = createDiscordModelPickerFallbackButton(context);
    const submitInteraction = createInteraction({ userId: "owner" });
    // rs=2 → first deduped recent (default is anthropic/claude-sonnet-4-5, so openai/gpt-4o remains)
    const submitData: PickerButtonData = {
      cmd: "model",
      act: "submit",
      view: "recents",
      u: "owner",
      pg: "1",
      rs: "2",
    };

    await button.run(submitInteraction as unknown as PickerButtonInteraction, submitData);

    expect(submitInteraction.update).toHaveBeenCalledTimes(1);
    expect(dispatchSpy).toHaveBeenCalledTimes(1);

    const dispatchCall = dispatchSpy.mock.calls[0]?.[0] as {
      ctx?: {
        CommandBody?: string;
        CommandArgs?: { values?: { model?: string } };
      };
    };
    expect(dispatchCall.ctx?.CommandBody).toBe("/model openai/gpt-4o");
    expect(dispatchCall.ctx?.CommandArgs?.values?.model).toBe("openai/gpt-4o");
  });
});