import { env } from '$env/dynamic/private';
import type { RequestEvent } from '@sveltejs/kit';
import type { components } from '$lib/generated/api';
import fixture from '../../../../../contracts/lead-scoring/fixtures/run-request.json';

export type RunRequest = components['schemas']['RunRequest'];
export const scoringFixture = fixture as RunRequest;

export class FixtureRunnerNotConfigured extends Error {}

export function fixtureRunnerConfigured(): boolean {
    return Boolean(env.LEAD_SCORING_FIXTURE_APP_API_KEY?.trim());
}

export async function submitScoringFixture(event: RequestEvent, useAI = false): Promise<Response> {
    const base = env.BACKEND_INTERNAL_URL;
    const appKey = env.LEAD_SCORING_FIXTURE_APP_API_KEY?.trim();
    if (!appKey) throw new FixtureRunnerNotConfigured();
    if (!base || !/^https?:\/\//.test(base)) {
        throw new Error('BACKEND_INTERNAL_URL must be configured on the server');
    }

    const request: RunRequest = {
        ...scoringFixture,
        scoring_config: {
            ...scoringFixture.scoring_config,
            rule_weight: useAI ? 0.5 : 1,
            ai_weight: useAI ? 0.5 : 0,
        },
    };
    const aiKey = env.LEAD_SCORING_FIXTURE_AI_KEY?.trim();
    return event.fetch(`${base.replace(/\/$/, '')}/v1/lead-scoring/score`, {
        method: 'POST',
        cache: 'no-store',
        redirect: 'error',
        headers: {
            accept: 'application/json',
            authorization: `Bearer ${appKey}`,
            'content-type': 'application/json',
            'Idempotency-Key': crypto.randomUUID(),
            ...(useAI && aiKey ? { 'X-AI-Key': aiKey } : {}),
        },
        body: JSON.stringify(request),
    });
}