// supabase/functions/ai-structured/ai_structured.test.ts
/// <reference lib="deno.ns" />
/// <reference lib="dom" />
/// <reference lib="dom.iterable" />

import { assert, assertEquals } from "jsr:@std/assert@1";
import "jsr:@std/dotenv/load";
import { createClient, type SupabaseClient } from "npm:@supabase/supabase-js@2";

const SUPABASE_URL = Deno.env.get("SUPABASE_URL") ?? "";
const SUPABASE_ANON_KEY = Deno.env.get("SUPABASE_ANON_KEY") ?? ""; // (o PUBLISHABLE_KEY si así lo nombraste)
const EMAIL = Deno.env.get("TEST_EMAIL") ?? "guillermo.arrieta@lasalle.mx";
const PASSWORD = Deno.env.get("TEST_PASSWORD") ?? "admin";

const options = {
  auth: {
    autoRefreshToken: false,
    persistSession: false,
    detectSessionInUrl: false,
  },
};

function mustEnv() {
  if (!SUPABASE_URL) throw new Error("SUPABASE_URL is required");
  if (!SUPABASE_ANON_KEY) throw new Error("SUPABASE_ANON_KEY is required");
}

async function getAuthedClient(): Promise<
  { client: SupabaseClient; accessToken: string }
> {
  mustEnv();
  const client = createClient(SUPABASE_URL, SUPABASE_ANON_KEY, options);

  const { data, error } = await client.auth.signInWithPassword({
    email: EMAIL,
    password: PASSWORD,
  });
  if (error) throw new Error("Sign-in failed: " + error.message);

  const accessToken = data.session?.access_token;
  if (!accessToken) {
    throw new Error("No access_token returned from signInWithPassword");
  }

  return { client, accessToken };
}

Deno.test("ai_generate_plan creates plan and returns structured data", async () => {
  const { client, accessToken } = await getAuthedClient();

  const { data: carrera, error: carreraError } = await client
    .from("carreras")
    .select("id")
    .limit(1)
    .single();
  if (carreraError) {
    throw new Error("Failed to fetch carrera: " + carreraError.message);
  }
  if (!carrera) throw new Error("No carrera found");

  const datosBasicos = {
    nombrePlan: "Plan de estudios de Ingeniería en Sistemas Computacionales",
    carreraId: carrera.id,
    nivel: "Licenciatura",
    tipoCiclo: "Semestre", // important: normalizes to "Semestre"
    numCiclos: 8,
  };

  const { data, error } = await client.functions.invoke("ai_generate_plan", {
    headers: {
      Authorization: `Bearer ${accessToken}`,
    },
    body: { datosBasicos },
  });

  if (error) throw new Error("Invoke failed: " + error.message);
  assert(data, "Expected data from function");

  // Top-level result
  assertEquals(data.ok, true);

  // `plan` (DB record)
  assert(typeof data.plan?.id === "string");
  assertEquals(data.plan.nombre, datosBasicos.nombrePlan);
  assertEquals(data.plan.nivel, "Licenciatura");
  assertEquals(data.plan.tipo_ciclo, "Semestre");
  assertEquals(data.plan.numero_ciclos, datosBasicos.numCiclos);

  // `plan_datos` (normalized structured payload)
  assert(typeof data.plan_datos === "object");
  assertEquals(data.plan_datos.nombre, datosBasicos.nombrePlan);
  assertEquals(data.plan_datos.nivel, "Licenciatura");
  assertEquals(
    data.plan_datos.total_de_ciclos_del_plan_de_estudios,
    String(datosBasicos.numCiclos),
  );
  assertEquals(data.plan_datos.duracion_del_ciclo_escolar, "16"); // Semestre -> 16
});

Deno.test("ai_generate_plan (multipart with files)", async () => {
  const { client, accessToken } = await getAuthedClient();

  const { data: carrera, error: carreraError } = await client
    .from("carreras")
    .select("id")
    .limit(1)
    .single();
  if (carreraError) {
    throw new Error("Failed to fetch carrera: " + carreraError.message);
  }
  if (!carrera) throw new Error("No carrera found");

  const datosBasicos = {
    nombrePlan: "Plan de estudios generado con referencias",
    carreraId: carrera.id,
    nivel: "Maestría",
    tipoCiclo: "Semestre",
    numCiclos: 4,
  };

  const iaConfig = {
    descripcionEnfoque: "Programa de postgrado enfocado en tecnología",
    notasAdicionales: "Considerar tendencias actuales en IA",
  };

  // Create a simple test file
  const fileContent = "Sample curriculum reference document";
  const file = new File([fileContent], "reference.txt", { type: "text/plain" });

  const payload = {
    datosBasicos,
    iaConfig,
  };

  const fd = new FormData();
  fd.append("payload", JSON.stringify(payload));
  fd.append("files", file);

  const { data, error } = await client.functions.invoke("ai_generate_plan", {
    headers: {
      Authorization: `Bearer ${accessToken}`,
    },
    method: "POST",
    body: fd,
  });

  if (error) throw new Error("Invoke failed: " + error.message);
  assert(data, "Expected data from function");

  assertEquals(data.ok, true);
  assert(data.plan);
  assertEquals(data.plan.nombre, datosBasicos.nombrePlan);
  assertEquals(data.plan.nivel, "Maestría");
  assertEquals(data.plan.numero_ciclos, datosBasicos.numCiclos);

  assert(data.references);
  assertEquals(data.references.tempFilesCount, 1);
});