import type { CliConfig } from '../types/index.js';
import { describeEnvPath, readEnvFile } from './env-file.js';

export function getConfig(): CliConfig {
    const env = readEnvFile();
    let baseUrl = env.KOB_API_BASE_URL || process.env.KOB_API_BASE_URL || 'https://www.kob-ai.dev';

    // Normalize base URL: strip /v1 /v2 etc. if present (Next.js subpath)
    // API endpoints use /api/ prefix directly, not under /v1/
    baseUrl = baseUrl.replace(/\/v\d+\/?$/, '').replace(/\/+$/, '');

    const rawKey = env.KOB_API_KEY || process.env.KOB_API_KEY || '';
    const modelId = env.KOB_MODEL_ID || process.env.KOB_MODEL_ID;

    if (!rawKey) {
        console.error('❌ Error: KOB_API_KEY environment variable is required');
        console.error(`Please set it in ${describeEnvPath()} or run "kob config"`);
        console.error('Example:');
        console.error('  export KOB_API_KEY=kob_your_key');
        process.exit(1);
    }

    // Support combined format: "kob_xxx:token" or just "kob_xxx"
    const colonIndex = rawKey.indexOf(':');
    const apiKey = colonIndex !== -1 ? rawKey.substring(0, colonIndex) : rawKey;
    const apiToken = colonIndex !== -1 ? rawKey.substring(colonIndex + 1) : undefined;

    return {
        baseUrl,
        apiKey,
        apiToken,
        bearerToken: rawKey,
        modelId: modelId || undefined,
    };
}

export function validateConfig(config: CliConfig): void {
    if (!config.baseUrl) {
        console.error('❌ Error: KOB_API_BASE_URL is not set');
        process.exit(1);
    }

    if (!config.apiKey) {
        console.error('❌ Error: KOB_API_KEY is not set');
        process.exit(1);
    }
}