import assert from "node:assert/strict"
import test from "node:test"
import { addPlugin, removePlugin, replacePlugin } from "../dist/installer/config.js"

const pluginName = "@sargatxet/opencode-toolkit"

test("adds a package plugin while preserving unrelated JSONC and comments", () => {
  const original = `{
  // Keep the user's settings intact.
  "model": "provider/model",
  "plugins": ["existing-plugin"]
}`

  const result = addPlugin(original, pluginName)
  const parsed = JSON.parse(result.content.replace("// Keep the user's settings intact.\n  ", ""))

  assert.equal(result.added, true)
  assert.equal(parsed.model, "provider/model")
  assert.deepEqual(parsed.plugins, ["existing-plugin", pluginName])
  assert.match(result.content, /Keep the user's settings intact/)
})

test("does not duplicate an already configured package plugin", () => {
  const original = JSON.stringify({ plugins: [pluginName] }, null, 2)
  const result = addPlugin(original, pluginName)

  assert.equal(result.added, false)
  assert.equal(result.content, original)
})

test("removes only the requested package plugin", () => {
  const original = JSON.stringify({ plugins: ["other-plugin", pluginName] }, null, 2)
  const result = removePlugin(original, pluginName)

  assert.equal(result.removed, true)
  assert.deepEqual(JSON.parse(result.content).plugins, ["other-plugin"])
})

test("replaces a managed plugin entry while preserving JSONC comments", () => {
  const original = `{
  "plugins": [
    // Added by the previous installer version.
    "${pluginName}"
  ]
}`
  const replacement = "../node_modules/@sargatxet/opencode-toolkit"

  const result = replacePlugin(original, pluginName, replacement)

  assert.equal(result.replaced, true)
  assert.deepEqual(JSON.parse(result.content.replace("    // Added by the previous installer version.\n", "")).plugins, [replacement])
  assert.match(result.content, /Added by the previous installer version/)
})

test("rejects malformed or incompatible plugin configuration", () => {
  assert.throws(() => addPlugin('{ "plugins": "not-an-array" }', pluginName), /plugins.*array/i)
  assert.throws(() => addPlugin('{ broken', pluginName), /invalid JSONC/i)
})