import fs from "fs/promises"

import { xdgData, xdgCache, xdgConfig, xdgState } from "xdg-basedir"

import path from "path"

import os from "os"

import { Filesystem } from "../util/filesystem"

const app = "opencode"

const data = path.join(xdgData!, app)

const cache = path.join(xdgCache!, app)

const config = path.join(xdgConfig!, app)

const state = path.join(xdgState!, app)

export namespace Global {

export const Path = {

// Allow override via OPENCODE_TEST_HOME for test isolation

get home() {

return process.env.OPENCODE_TEST_HOME || os.homedir()

},

data,

bin: path.join(data, "bin"),

log: path.join(data, "log"),

cache,

config,

state,

}

}

await Promise.all([

fs.mkdir(Global.Path.data, { recursive: true }),

fs.mkdir(Global.Path.config, { recursive: true }),

fs.mkdir(Global.Path.state, { recursive: true }),

fs.mkdir(Global.Path.log, { recursive: true }),

fs.mkdir(Global.Path.bin, { recursive: true }),

])

const CACHE_VERSION = "21"

const version = await Filesystem.readText(path.join(Global.Path.cache, "version")).catch(() => "0")

if (version !== CACHE_VERSION) {

try {

const contents = await fs.readdir(Global.Path.cache)

await Promise.all(

contents.map((item) =>

fs.rm(path.join(Global.Path.cache, item), {

recursive: true,

force: true,

}),

),

)

} catch (e) {}

await Filesystem.write(path.join(Global.Path.cache, "version"), CACHE_VERSION)

}