import { type NextRequest, NextResponse } from "next/server";
import { requireAuth } from "@/lib/auth/middleware";
import {
  createCharacter,
  getUserCharacters,
} from "@/lib/prisma/queries/characters";
import { secureLogger } from "@/lib/secure-logger";
import { characterSchema } from "@/lib/validation-schemas";

export async function GET(request: NextRequest) {
  try {
    // Middleware de autenticação
    const authResult = await requireAuth(request);

    if (authResult instanceof NextResponse) {
      return authResult;
    }

    const auth = authResult;

    // Listar personagens do usuário
    const characters = await getUserCharacters(auth.userId);

    return NextResponse.json(
      {
        success: true,
        characters: characters.map((char) => ({
          characterId: char.character_id,
          characterName: char.character_name,
          serverName: char.server_name,
          isMain: char.is_main,
          verified: char.verified,
          createdAt: char.created_at,
        })),
      },
      { status: 200 },
    );
  } catch (error) {
    // Se for NextResponse (erro de autenticação), re-lançar
    if (error instanceof NextResponse) {
      return error;
    }

    secureLogger.error("❌ Erro ao listar personagens", {
      error: error instanceof Error ? error.message : "Erro desconhecido",
      stack: error instanceof Error ? error.stack : undefined,
      timestamp: new Date().toISOString(),
    });

    return NextResponse.json(
      {
        success: false,
        error: error instanceof Error ? error.message : "Erro interno",
      },
      { status: 500 },
    );
  }
}

export async function POST(request: NextRequest) {
  try {
    // Middleware de autenticação
    const authResult = await requireAuth(request);

    if (authResult instanceof NextResponse) {
      return authResult;
    }

    const auth = authResult;

    const body = await request.json();

    // Validação com Zod
    const validationResult = characterSchema.safeParse(body);

    if (!validationResult.success) {
      const errors = validationResult.error.issues.map((err) => ({
        field: err.path.join("."),
        message: err.message,
      }));

      return NextResponse.json(
        {
          success: false,
          error: "Dados de entrada inválidos",
          details: errors,
        },
        { status: 400 },
      );
    }

    const validatedData = validationResult.data;

    // Criar personagem
    const newCharacter = await createCharacter(auth.userId, {
      character_name: validatedData.characterName,
      server_name: validatedData.serverName,
      is_main: validatedData.isMain,
    });

    secureLogger.info("✅ Personagem criado com sucesso", {
      userId: auth.userId,
      characterId: newCharacter.character_id,
      timestamp: new Date().toISOString(),
    });

    return NextResponse.json(
      {
        success: true,
        character: {
          characterId: newCharacter.character_id,
          characterName: newCharacter.character_name,
          serverName: newCharacter.server_name,
          isMain: newCharacter.is_main,
          verified: newCharacter.verified,
          createdAt: newCharacter.created_at,
        },
      },
      { status: 201 },
    );
  } catch (error) {
    // Se for NextResponse (erro de autenticação), re-lançar
    if (error instanceof NextResponse) {
      return error;
    }

    // Verificar se é erro de constraint (personagem duplicado)
    if (error instanceof Error && error.message.includes("UNIQUE")) {
      return NextResponse.json(
        {
          success: false,
          error: "Este personagem já está cadastrado neste servidor",
        },
        { status: 409 },
      );
    }

    secureLogger.error("❌ Erro ao criar personagem", {
      error: error instanceof Error ? error.message : "Erro desconhecido",
      stack: error instanceof Error ? error.stack : undefined,
      timestamp: new Date().toISOString(),
    });

    return NextResponse.json(
      {
        success: false,
        error: error instanceof Error ? error.message : "Erro interno",
      },
      { status: 500 },
    );
  }
}