import { describe, expect, test } from "bun:test"
import path from "path"
import fs from "fs/promises"
import { pathToFileURL } from "url"
import { Effect, Layer } from "effect"
import { provideTestInstance, tmpdir } from "../fixture/fixture"
import { ProviderAuth } from "@/provider/auth"
import { ProviderID } from "../../src/provider/schema"
import { Plugin } from "@/plugin"
import { Auth } from "@/auth"
import { Bus } from "@/bus"
import { TestConfig } from "../fixture/config"

function layer(directory: string, plugins: string[]) {
  return ProviderAuth.layer.pipe(
    Layer.provide(Auth.defaultLayer),
    Layer.provide(
      Plugin.layer.pipe(
        Layer.provide(Bus.layer),
        Layer.provide(
          TestConfig.layer({
            get: () =>
              Effect.succeed({
                plugin: plugins,
                plugin_origins: plugins.map((plugin) => ({
                  spec: plugin,
                  source: path.join(directory, "opencode.json"),
                  scope: "local" as const,
                })),
              }),
            directories: () => Effect.succeed([directory]),
          }),
        ),
      ),
    ),
  )
}

describe("plugin.auth-override", () => {
  test("user plugin overrides built-in github-copilot auth", async () => {
    await using tmp = await tmpdir({
      init: async (dir) => {
        const pluginDir = path.join(dir, ".opencode", "plugin")
        await fs.mkdir(pluginDir, { recursive: true })

        await Bun.write(
          path.join(pluginDir, "custom-copilot-auth.ts"),
          [
            "export default {",
            '  id: "demo.custom-copilot-auth",',
            "  server: async () => ({",
            "    auth: {",
            '      provider: "github-copilot",',
            "      methods: [",
            '        { type: "api", label: "Test Override Auth" },',
            "      ],",
            "      loader: async () => ({ access: 'test-token' }),",
            "    },",
            "  }),",
            "}",
            "",
          ].join("\n"),
        )
      },
    })

    await using plain = await tmpdir()

    const plugin = pathToFileURL(path.join(tmp.path, ".opencode", "plugin", "custom-copilot-auth.ts")).href
    const [methods, plainMethods] = await Promise.all([
      provideTestInstance({
        directory: tmp.path,
        fn: async () => {
          return Effect.runPromise(
            ProviderAuth.Service.use((svc) => svc.methods()).pipe(Effect.provide(layer(tmp.path, [plugin]))),
          )
        },
      }),
      provideTestInstance({
        directory: plain.path,
        fn: async () => {
          return Effect.runPromise(
            ProviderAuth.Service.use((svc) => svc.methods()).pipe(Effect.provide(layer(plain.path, []))),
          )
        },
      }),
    ])

    const copilot = methods[ProviderID.make("github-copilot")]
    expect(copilot).toBeDefined()
    expect(copilot.length).toBe(1)
    expect(copilot[0].label).toBe("Test Override Auth")
    expect(plainMethods[ProviderID.make("github-copilot")][0].label).not.toBe("Test Override Auth")
  }, 30000)
})

const file = path.join(import.meta.dir, "../../src/plugin/index.ts")

describe("plugin.config-hook-error-isolation", () => {
  test("config hooks are individually error-isolated in the layer factory", async () => {
    const src = await Bun.file(file).text()

    // Each hook's config call is wrapped in Effect.tryPromise with error logging + Effect.ignore
    expect(src).toContain("plugin config hook failed")

    const pattern =
      /for\s*\(const hook of hooks\)\s*\{[\s\S]*?Effect\.tryPromise[\s\S]*?\.config\?\.\([\s\S]*?plugin config hook failed[\s\S]*?Effect\.ignore/
    expect(pattern.test(src)).toBe(true)
  })
})