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

import path from "path"

import { Effect, Layer } from "effect"

import { GrepTool } from "../../src/tool/grep"

import { provideInstance, provideTmpdirInstance } from "../fixture/fixture"

import { SessionID, MessageID } from "../../src/session/schema"

import * as CrossSpawnSpawner from "../../src/effect/cross-spawn-spawner"

import { Truncate } from "../../src/tool"

import { Agent } from "../../src/agent/agent"

import { Ripgrep } from "../../src/file/ripgrep"

import { AppFileSystem } from "@opencode-ai/shared/filesystem"

import { testEffect } from "../lib/effect"

const it = testEffect(

Layer.mergeAll(

CrossSpawnSpawner.defaultLayer,

AppFileSystem.defaultLayer,

Ripgrep.defaultLayer,

Truncate.defaultLayer,

Agent.defaultLayer,

),

)

const ctx = {

sessionID: SessionID.make("ses_test"),

messageID: MessageID.make(""),

callID: "",

agent: "build",

abort: AbortSignal.any([]),

messages: [],

metadata: () => Effect.void,

ask: () => Effect.void,

}

const root = path.join(__dirname, "../..")

describe("tool.grep", () => {

it.live("basic search", () =>

Effect.gen(function* () {

const info = yield* GrepTool

const grep = yield* info.init()

const result = yield* provideInstance(root)(

grep.execute(

{

pattern: "export",

path: path.join(root, "src/tool"),

include: "*.ts",

},

ctx,

),

)

expect(result.metadata.matches).toBeGreaterThan(0)

expect(result.output).toContain("Found")

}),

)

it.live("no matches returns correct output", () =>

provideTmpdirInstance((dir) =>

Effect.gen(function* () {

yield* Effect.promise(() => Bun.write(path.join(dir, "test.txt"), "hello world"))

const info = yield* GrepTool

const grep = yield* info.init()

const result = yield* grep.execute(

{

pattern: "xyznonexistentpatternxyz123",

path: dir,

},

ctx,

)

expect(result.metadata.matches).toBe(0)

expect(result.output).toBe("No files found")

}),

),

)

it.live("finds matches in tmp instance", () =>

provideTmpdirInstance((dir) =>

Effect.gen(function* () {

yield* Effect.promise(() => Bun.write(path.join(dir, "test.txt"), "line1\nline2\nline3"))

const info = yield* GrepTool

const grep = yield* info.init()

const result = yield* grep.execute(

{

pattern: "line",

path: dir,

},

ctx,

)

expect(result.metadata.matches).toBeGreaterThan(0)

}),

),

)

it.live("supports exact file paths", () =>

provideTmpdirInstance((dir) =>

Effect.gen(function* () {

const file = path.join(dir, "test.txt")

yield* Effect.promise(() => Bun.write(file, "line1\nline2\nline3"))

const info = yield* GrepTool

const grep = yield* info.init()

const result = yield* grep.execute(

{

pattern: "line2",

path: file,

},

ctx,

)

expect(result.metadata.matches).toBe(1)

expect(result.output).toContain(file)

expect(result.output).toContain("Line 2: line2")

}),

),

)

})