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

import { classifyErrorType, extractAutoRetrySignal, isRetryableError } from "./error-classifier"

describe("runtime-fallback error classifier", () => {
  test("detects cooling-down auto-retry status signals", () => {
    //#given
    const info = {
      status:
        "All credentials for model claude-opus-4-6-thinking are cooling down [retrying in ~5 days attempt #1]",
    }

    //#when
    const signal = extractAutoRetrySignal(info)

    //#then
    expect(signal).toBeDefined()
  })

  test("detects single-word cooldown auto-retry status signals", () => {
    //#given
    const info = {
      status:
        "All credentials for model claude-opus-4-6 are cooldown [retrying in 7m 56s attempt #1]",
    }

    //#when
    const signal = extractAutoRetrySignal(info)

    //#then
    expect(signal).toBeDefined()
  })

  test("treats cooling-down retry messages as retryable", () => {
    //#given
    const error = {
      message:
        "All credentials for model claude-opus-4-6-thinking are cooling down [retrying in ~5 days attempt #1]",
    }

    //#when
    const retryable = isRetryableError(error, [400, 403, 408, 429, 500, 502, 503, 504, 529])

    //#then
    expect(retryable).toBe(true)
  })

  test("classifies ProviderModelNotFoundError as model_not_found", () => {
    //#given
    const error = {
      name: "ProviderModelNotFoundError",
      data: {
        providerID: "anthropic",
        modelID: "claude-opus-4-6",
        message: "Model not found: anthropic/claude-opus-4-6.",
      },
    }

    //#when
    const errorType = classifyErrorType(error)
    const retryable = isRetryableError(error, [429, 503, 529])

    //#then
    expect(errorType).toBe("model_not_found")
    expect(retryable).toBe(true)
  })

  test("classifies nested AI_LoadAPIKeyError as missing_api_key", () => {
    //#given
    const error = {
      data: {
        name: "AI_LoadAPIKeyError",
        message:
          "Google Generative AI API key is missing. Pass it using the 'apiKey' parameter or the GOOGLE_GENERATIVE_AI_API_KEY environment variable.",
      },
    }

    //#when
    const errorType = classifyErrorType(error)
    const retryable = isRetryableError(error, [429, 503, 529])

    //#then
    expect(errorType).toBe("missing_api_key")
    expect(retryable).toBe(true)
  })

  test("ignores non-retry assistant status text", () => {
    //#given
    const info = {
      status: "Thinking...",
    }

    //#when
    const signal = extractAutoRetrySignal(info)

    //#then
    expect(signal).toBeUndefined()
  })
})