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

describe("Console Billing Module", () => {
  const ITEM_CREDIT_NAME = "opencode credits"
  const ITEM_FEE_NAME = "processing fee"
  const RELOAD_AMOUNT = 20
  const RELOAD_AMOUNT_MIN = 10
  const RELOAD_TRIGGER = 5

  describe("calculateFeeInCents", () => {
    function calculateFeeInCents(x: number) {
      return Math.round(((x + 30) / 0.956) * 0.044 + 30)
    }

    test("calculates fee for $10 amount", () => {
      const amount = 1000
      const fee = calculateFeeInCents(amount)
      expect(fee).toBeGreaterThan(30)
      expect(fee).toBeLessThan(100)
    })

    test("calculates fee for $20 amount", () => {
      const amount = 2000
      const fee = calculateFeeInCents(amount)
      expect(fee).toBeGreaterThan(30)
      expect(fee).toBeLessThan(150)
    })

    test("calculates fee for $100 amount", () => {
      const amount = 10000
      const fee = calculateFeeInCents(amount)
      expect(fee).toBeGreaterThan(100)
    })

    test("returns minimum fee for small amounts", () => {
      const amount = 100
      const fee = calculateFeeInCents(amount)
      expect(fee).toBeGreaterThanOrEqual(30)
    })
  })

  describe("centsToMicroCents", () => {
    function centsToMicroCents(cents: number) {
      return cents * 1000000
    }

    test("converts cents to micro cents", () => {
      expect(centsToMicroCents(100)).toBe(100000000)
      expect(centsToMicroCents(1)).toBe(1000000)
      expect(centsToMicroCents(0.01)).toBe(10000)
    })

    test("handles dollar amounts", () => {
      const dollarAmount = 20
      const cents = dollarAmount * 100
      const microCents = centsToMicroCents(cents)
      expect(microCents).toBe(2000000000)
    })
  })

  describe("billing constants", () => {
    test("has correct credit item name", () => {
      expect(ITEM_CREDIT_NAME).toBe("opencode credits")
    })

    test("has correct fee item name", () => {
      expect(ITEM_FEE_NAME).toBe("processing fee")
    })

    test("has correct default reload amount", () => {
      expect(RELOAD_AMOUNT).toBe(20)
    })

    test("has correct minimum reload amount", () => {
      expect(RELOAD_AMOUNT_MIN).toBe(10)
    })

    test("has correct reload trigger", () => {
      expect(RELOAD_TRIGGER).toBe(5)
    })
  })

  describe("setMonthlyLimit schema", () => {
    const schema = z.number()

    test("validates number input", () => {
      expect(schema.safeParse(100).success).toBe(true)
      expect(schema.safeParse(0).success).toBe(true)
      expect(schema.safeParse(-50).success).toBe(true)
    })

    test("rejects non-number input", () => {
      expect(schema.safeParse("100").success).toBe(false)
      expect(schema.safeParse(null).success).toBe(false)
      expect(schema.safeParse(undefined).success).toBe(false)
    })
  })

  describe("generateCheckoutUrl schema", () => {
    const schema = z.object({
      successUrl: z.string(),
      cancelUrl: z.string(),
      amount: z.number().optional(),
    })

    test("validates required fields", () => {
      const result = schema.safeParse({
        successUrl: "https://example.com/success",
        cancelUrl: "https://example.com/cancel",
      })
      expect(result.success).toBe(true)
    })

    test("validates with optional amount", () => {
      const result = schema.safeParse({
        successUrl: "https://example.com/success",
        cancelUrl: "https://example.com/cancel",
        amount: 20,
      })
      expect(result.success).toBe(true)
    })

    test("rejects missing required fields", () => {
      const result = schema.safeParse({
        successUrl: "https://example.com/success",
      })
      expect(result.success).toBe(false)
    })

    test("validates amount is number", () => {
      const result = schema.safeParse({
        successUrl: "https://example.com/success",
        cancelUrl: "https://example.com/cancel",
        amount: "20",
      })
      expect(result.success).toBe(false)
    })
  })

  describe("generateSessionUrl schema", () => {
    const schema = z.object({
      returnUrl: z.string(),
    })

    test("validates return URL", () => {
      const result = schema.safeParse({
        returnUrl: "https://example.com/dashboard",
      })
      expect(result.success).toBe(true)
    })

    test("rejects missing return URL", () => {
      const result = schema.safeParse({})
      expect(result.success).toBe(false)
    })
  })

  describe("generateReceiptUrl schema", () => {
    const schema = z.object({
      paymentID: z.string(),
    })

    test("validates payment ID", () => {
      const result = schema.safeParse({
        paymentID: "pi_1234567890",
      })
      expect(result.success).toBe(true)
    })

    test("rejects missing payment ID", () => {
      const result = schema.safeParse({})
      expect(result.success).toBe(false)
    })
  })

  describe("subscribe schema", () => {
    const schema = z.object({
      seats: z.number(),
      coupon: z.string().optional(),
    })

    test("validates with required seats", () => {
      const result = schema.safeParse({ seats: 5 })
      expect(result.success).toBe(true)
    })

    test("validates with optional coupon", () => {
      const result = schema.safeParse({ seats: 5, coupon: "DISCOUNT20" })
      expect(result.success).toBe(true)
    })

    test("rejects missing seats", () => {
      const result = schema.safeParse({ coupon: "DISCOUNT20" })
      expect(result.success).toBe(false)
    })
  })

  describe("unsubscribe schema", () => {
    const schema = z.object({
      subscriptionID: z.string(),
    })

    test("validates subscription ID", () => {
      const result = schema.safeParse({ subscriptionID: "sub_123" })
      expect(result.success).toBe(true)
    })

    test("rejects missing subscription ID", () => {
      const result = schema.safeParse({})
      expect(result.success).toBe(false)
    })
  })
})

describe("Console Account Module", () => {
  describe("create schema", () => {
    const schema = z.object({
      id: z.string().optional(),
    })

    test("validates without ID (auto-generated)", () => {
      const result = schema.safeParse({})
      expect(result.success).toBe(true)
    })

    test("validates with custom ID", () => {
      const result = schema.safeParse({ id: "custom-account-id" })
      expect(result.success).toBe(true)
    })

    test("rejects non-string ID", () => {
      const result = schema.safeParse({ id: 123 })
      expect(result.success).toBe(false)
    })
  })

  describe("fromID schema", () => {
    const schema = z.string()

    test("validates string ID", () => {
      expect(schema.safeParse("account-123").success).toBe(true)
    })

    test("rejects non-string input", () => {
      expect(schema.safeParse(123).success).toBe(false)
      expect(schema.safeParse(null).success).toBe(false)
      expect(schema.safeParse(undefined).success).toBe(false)
    })
  })

  describe("Identifier creation", () => {
    function createIdentifier(prefix: string) {
      const randomPart = Math.random().toString(36).substring(2, 15)
      const timestamp = Date.now().toString(36)
      return `${prefix}_${timestamp}_${randomPart}`
    }

    test("creates unique identifiers", () => {
      const id1 = createIdentifier("account")
      const id2 = createIdentifier("account")
      expect(id1).not.toBe(id2)
    })

    test("includes prefix in identifier", () => {
      const id = createIdentifier("payment")
      expect(id).toContain("payment_")
    })

    test("has expected format", () => {
      const id = createIdentifier("subscription")
      expect(id).toMatch(/^subscription_[a-z0-9]+_[a-z0-9]+$/)
    })
  })
})

describe("Console Provider Module", () => {
  describe("create schema", () => {
    const schema = z.object({
      provider: z.string().min(1).max(64),
      credentials: z.string(),
    })

    test("validates valid provider data", () => {
      const result = schema.safeParse({
        provider: "openrouter",
        credentials: "sk-or-1234567890",
      })
      expect(result.success).toBe(true)
    })

    test("rejects empty provider name", () => {
      const result = schema.safeParse({
        provider: "",
        credentials: "sk-test",
      })
      expect(result.success).toBe(false)
    })

    test("rejects provider name over 64 chars", () => {
      const result = schema.safeParse({
        provider: "a".repeat(65),
        credentials: "sk-test",
      })
      expect(result.success).toBe(false)
    })

    test("rejects missing credentials", () => {
      const result = schema.safeParse({
        provider: "openrouter",
      })
      expect(result.success).toBe(false)
    })

    test("accepts various provider names", () => {
      const providers = ["openrouter", "mistral", "ollama", "anthropic", "openai"]
      providers.forEach((provider) => {
        const result = schema.safeParse({
          provider,
          credentials: "test-key",
        })
        expect(result.success).toBe(true)
      })
    })
  })

  describe("remove schema", () => {
    const schema = z.object({
      provider: z.string(),
    })

    test("validates provider name for removal", () => {
      const result = schema.safeParse({ provider: "openrouter" })
      expect(result.success).toBe(true)
    })

    test("rejects missing provider", () => {
      const result = schema.safeParse({})
      expect(result.success).toBe(false)
    })
  })
})

describe("Price Utilities", () => {
  function centsToMicroCents(cents: number) {
    return cents * 1000000
  }

  function microCentsToCents(microCents: number) {
    return microCents / 1000000
  }

  test("round trip conversion", () => {
    const original = 2000
    const microCents = centsToMicroCents(original)
    const back = microCentsToCents(microCents)
    expect(back).toBe(original)
  })

  test("handles decimal amounts", () => {
    const cents = 1.5
    const microCents = centsToMicroCents(cents)
    expect(microCents).toBe(1500000)
  })
})
