feat: add kiqr seed command for demo content

src/commands/seed.tsx

@@ -0,0 +1,87 @@
+import {existsSync, writeFileSync} from 'node:fs';
+import path from 'node:path';
+import {Box, Text, useApp} from 'ink';
+import {option} from 'pastel';
+import {useEffect, useState} from 'react';
+import zod from 'zod';
+import {generateSeedWxr, SEED_PRESETS, type SeedPreset} from '../lib/seed.js';
+
+export const description = 'Generate realistic WordPress demo content as a WXR file';
+
+export const options = zod.object({
+  preset: zod
+    .enum(SEED_PRESETS)
+    .default('blog')
+    .describe(
+      option({
+        description: 'Which demo content set to generate',
+        alias: 'p',
+        valueDescription: SEED_PRESETS.join('|'),
+      }),
+    ),
+});
+
+type Props = {
+  options: zod.infer<typeof options>;
+};
+
+type Result =
+  | {kind: 'done'; preset: SeedPreset; filename: string}
+  | {kind: 'error'; message: string};
+
+export default function Seed({options}: Props) {
+  const {exit} = useApp();
+  const [result, setResult] = useState<Result | null>(null);
+
+  useEffect(() => {
+    const preset = options.preset;
+    const filename = `kiqr-seed-${preset}.xml`;
+    const target = path.join(process.cwd(), filename);
+
+    if (existsSync(target)) {
+      setResult({
+        kind: 'error',
+        message: `${filename} already exists. Remove it or move it before running "kiqr seed" again.`,
+      });
+      setTimeout(() => exit(new Error()), 100);
+      return;
+    }
+
+    try {
+      writeFileSync(target, generateSeedWxr(preset), 'utf8');
+      setResult({kind: 'done', preset, filename});
+      setTimeout(() => exit(), 100);
+    } catch (err) {
+      setResult({
+        kind: 'error',
+        message: err instanceof Error ? err.message : String(err),
+      });
+      setTimeout(() => exit(new Error()), 100);
+    }
+  }, []);
+
+  if (!result) return <Text dimColor>Generating demo content...</Text>;
+
+  if (result.kind === 'error') return <Text color="red">{result.message}</Text>;
+
+  return (
+    <Box flexDirection="column" marginTop={1}>
+      <Text bold color="green">
+        Wrote {result.filename} ({result.preset} preset).
+      </Text>
+      <Text> </Text>
+      <Text>Next steps:</Text>
+      <Text> </Text>
+      <Text dimColor> 1. Make sure your site is running: </Text>
+      <Text>
+        {'    '}
+        <Text bold>kiqr up</Text>
+      </Text>
+      <Text dimColor> 2. Import the demo content:</Text>
+      <Text>
+        {'    '}
+        <Text bold>kiqr wp import {result.filename} --authors=create</Text>
+      </Text>
+    </Box>
+  );
+}