/**
 * Create New Branch: spaces typed or pasted into the name become separators on the fly, as in
 * IDEA, so the name stays valid. Git is stubbed at the IPC layer.
 */
import type { Page } from "@playwright/test";
import { expect, ipcCalls, stubDesktop, test } from "./fixtures";

const ROOT = "/dev/acme-api";

async function openNewBranchDialog(page: Page, from?: string) {
  await stubDesktop(page);
  await page.evaluate(
    async ({ root, from }) => {
      const h = window.__ipc.handlers;
      h.vcs_roots = () => [{ root, operation: null, head: "main", headCommit: "1111111" }];
      h.vcs_branch_info = () => ({
        head: "main",
        headCommit: "1111111",
        upstream: null,
        ahead: 0,
        behind: 0,
        operation: null,
      });
      h.vcs_status = () => [];
      h.vcs_branches = () => [
        {
          name: "main",
          current: true,
          remote: false,
          upstream: null,
          ahead: 0,
          behind: 0,
          lastCommitMs: null,
          commit: "1111111",
        },
      ];
      h.vcs_create_branch = () => null;
      const vcsModule = "/src/features/vcs/store.ts";
      const { useVcs, refreshNow, loadBranches } = await import(/* @vite-ignore */ vcsModule);
      useVcs.setState({ available: true, root, repo: root, branchesLoaded: false, stashesLoaded: false });
      await refreshNow();
      await loadBranches();
      const actionsModule = "/src/platform/actions.ts";
      const { executeAction } = await import(/* @vite-ignore */ actionsModule);
      if (from) void executeAction("vcs.log.newBranch", { id: from, summary: "Selected commit", repo: root });
      else void executeAction("vcs.newBranch");
    },
    { root: ROOT, from },
  );
  const dialog = page.getByRole("dialog", { name: from ? `Create New Branch from ${from}` : "Create New Branch" });
  const input = dialog.getByRole("textbox", { name: "New branch name:" });
  await expect(input).toBeVisible();
  return { dialog, input };
}

test("a typed space becomes a separator and Create stays enabled", async ({ workbench: page }) => {
  const { dialog, input } = await openNewBranchDialog(page);
  await input.fill("");
  await input.pressSequentially("fix login  redirect");
  await expect(input).toHaveValue("fix-login-redirect");
  await expect(dialog.getByText("Branch name contains invalid characters")).toHaveCount(0);
  await expect(dialog.getByRole("button", { name: "Create", exact: true })).toBeEnabled();
  await dialog.getByRole("button", { name: "Create", exact: true }).click();
  const [call] = await ipcCalls(page, "vcs_create_branch");
  expect(call).toMatchObject({ name: "fix-login-redirect" });
});

test("overwrites a local branch only after explicitly opting in", async ({ workbench: page }) => {
  const from = "2".repeat(40);
  const { dialog, input } = await openNewBranchDialog(page, from);
  await input.fill("main");
  const create = dialog.getByRole("button", { name: "Create", exact: true });
  await expect(create).toBeDisabled();
  const overwrite = dialog.getByRole("checkbox", { name: "Overwrite existing branch" });
  await expect(overwrite).toBeVisible();
  await expect(overwrite).not.toBeChecked();
  await overwrite.check();
  await expect(create).toBeEnabled();
  await input.fill("new-branch");
  await expect(overwrite).toHaveCount(0);
  await input.fill("main");
  await expect(overwrite).not.toBeChecked();
  await expect(create).toBeDisabled();
  await overwrite.check();
  await create.click();
  await expect
    .poll(() => ipcCalls(page, "vcs_create_branch"))
    .toEqual([{ repo: ROOT, name: "main", start: from, checkout: true, overwrite: true }]);
});

test("a space typed in the middle keeps the caret after it", async ({ workbench: page }) => {
  const { input } = await openNewBranchDialog(page);
  await input.fill("ab");
  await input.evaluate((el: HTMLInputElement) => el.setSelectionRange(1, 1));
  await page.keyboard.press("Space");
  await expect(input).toHaveValue("a-b");
  await page.keyboard.type("x");
  await expect(input).toHaveValue("a-xb");
});

test("pasted text has its spaces replaced", async ({ workbench: page }) => {
  const { dialog, input } = await openNewBranchDialog(page);
  await input.fill("");
  await input.evaluate((el: HTMLInputElement) => {
    el.focus();
    document.execCommand("insertText", false, "feature/add new thing");
  });
  await expect(input).toHaveValue("feature/add-new-thing");
  await expect(dialog.getByRole("button", { name: "Create", exact: true })).toBeEnabled();
});