import { describe, expect, it } from "vitest";
import { hasDraftContent, resolveDraftKey } from "./input-draft-core";
import {
  buildDraftCommandConfig,
  resolveEffectiveComposerModelId,
  resolveEffectiveComposerThinkingOptionId,
} from "@/provider-selection/provider-selection";

describe("resolveDraftKey", () => {
  it("returns a string draft key unchanged", () => {
    expect(
      resolveDraftKey({
        draftKey: "draft:key",
        selectedServerId: "host-1",
      }),
    ).toBe("draft:key");
  });

  it("resolves a computed draft key from the selected server", () => {
    expect(
      resolveDraftKey({
        draftKey: ({ selectedServerId }) => `draft:${selectedServerId ?? "none"}`,
        selectedServerId: "host-1",
      }),
    ).toBe("draft:host-1");
  });
});

describe("hasDraftContent", () => {
  it("preserves whitespace-only text while the user is editing", () => {
    expect(hasDraftContent({ text: "\n\n\n\n\n", attachments: [] })).toBe(true);
  });
});

describe("resolveEffectiveComposerModelId", () => {
  it("returns the selected model trimmed", () => {
    expect(
      resolveEffectiveComposerModelId({
        provider: "codex",
        modelId: "  gpt-5.4-mini  ",
        modeId: "",
        thinkingOptionId: "",
        availableModels: [],
        modeOptions: [],
      }),
    ).toBe("gpt-5.4-mini");
  });

  it("returns empty string when no model selected", () => {
    expect(
      resolveEffectiveComposerModelId({
        provider: "codex",
        modelId: "",
        modeId: "",
        thinkingOptionId: "",
        availableModels: [],
        modeOptions: [],
      }),
    ).toBe("");
  });

  it("falls back to the provider default model when no model is selected", () => {
    expect(
      resolveEffectiveComposerModelId({
        provider: "codex",
        modelId: "",
        modeId: "",
        thinkingOptionId: "",
        availableModels: [
          { provider: "codex", id: "gpt-5.4-mini", label: "gpt-5.4-mini" },
          { provider: "codex", id: "gpt-5.4", label: "gpt-5.4", isDefault: true },
        ],
        modeOptions: [],
      }),
    ).toBe("gpt-5.4");
  });
});

describe("resolveEffectiveComposerThinkingOptionId", () => {
  const models = [
    {
      provider: "codex",
      id: "gpt-5.4",
      label: "gpt-5.4",
      isDefault: true,
      defaultThinkingOptionId: "high",
      thinkingOptions: [
        { id: "medium", label: "Medium" },
        { id: "high", label: "High", isDefault: true },
      ],
    },
  ];

  it("prefers the selected thinking option when present", () => {
    expect(
      resolveEffectiveComposerThinkingOptionId(
        {
          provider: "codex",
          modelId: "gpt-5.4",
          modeId: "",
          thinkingOptionId: "medium",
          availableModels: models,
          modeOptions: [],
        },
        "gpt-5.4",
      ),
    ).toBe("medium");
  });

  it("falls back to the model default thinking option", () => {
    expect(
      resolveEffectiveComposerThinkingOptionId(
        {
          provider: "codex",
          modelId: "gpt-5.4",
          modeId: "",
          thinkingOptionId: "",
          availableModels: models,
          modeOptions: [],
        },
        "gpt-5.4",
      ),
    ).toBe("high");
  });
});

describe("buildDraftComposerCommandConfig", () => {
  it("returns undefined when cwd is empty", () => {
    expect(
      buildDraftCommandConfig({
        selection: {
          provider: "codex",
          modelId: "gpt-5.4",
          modeId: "",
          thinkingOptionId: "",
          availableModels: [],
          modeOptions: [],
        },
        cwd: "  ",
        effectiveModelId: "gpt-5.4",
        effectiveThinkingOptionId: "high",
      }),
    ).toBeUndefined();
  });

  it("builds the draft command config from derived composer state", () => {
    expect(
      buildDraftCommandConfig({
        selection: {
          provider: "codex",
          modelId: "gpt-5.4",
          modeId: "auto",
          thinkingOptionId: "high",
          availableModels: [],
          modeOptions: [{ id: "auto", label: "Auto" }],
        },
        cwd: "/repo",
        effectiveModelId: "gpt-5.4",
        effectiveThinkingOptionId: "high",
      }),
    ).toEqual({
      provider: "codex",
      cwd: "/repo",
      modeId: "auto",
      model: "gpt-5.4",
      thinkingOptionId: "high",
    });
  });
});