package com.baiyue.lastleg.controller;

import com.baiyue.common.core.api.ApiResponse;
import com.baiyue.common.core.api.ResultCode;
import com.baiyue.common.core.exception.BizException;
import com.baiyue.common.core.outbox.OutboxOperations;
import com.baiyue.common.core.outbox.EventOperationsTokenGuard;
import com.baiyue.common.event.*;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.web.bind.annotation.*;
import java.util.Set;

/** Internal-only operator recovery. It cannot mutate the original event or call a consumer directly. */
@RestController
@RequestMapping("/internal/lastleg/event-operations")
public class EventOperationsController {
    private final EventOperationsTokenGuard guard;
    private final OutboxOperations operations;

    public EventOperationsController(JdbcTemplate jdbc, PlatformTransactionManager transactions,
            ObjectMapper mapper, @Value("${baiyue.event-delivery.operations-token:}") String token) {
        guard = new EventOperationsTokenGuard(token);
        operations = new OutboxOperations(jdbc, transactions,
            new OutboxOperations.Layout("ll_event_outbox", "id", "status", Set.of(EventTypes.OVERSEAS_CONTAINER_UNLOADED, EventTypes.OVERSEAS_DELIVERY_COMPLETED, EventTypes.OVERSEAS_INBOUND_ORDER_DETAINED_CHANGED, EventTypes.WALLET_COMMAND_REQUESTED, EventTypes.BUSINESS_FEE_SOURCE_CHANGED, EventTypes.COMPANY_VEHICLE_COST_SUBMITTED)),
            json -> {
                try {
                    EventEnvelope envelope = mapper.readValue(json, EventEnvelope.class).requireValid();
                    if (!EventPayloadHash.matches(EventPayloadCanonicalizer.canonicalize(envelope.payload()), envelope.payloadHash())) {
                        throw new IllegalArgumentException("Hash mismatch");
                    }
                    return new OutboxOperations.Identity(envelope.eventId(), envelope.eventType(), envelope.payloadHash());
                } catch (Exception invalid) {
                    throw new BizException(ResultCode.CONFLICT, "原事件格式或摘要无效，禁止人工重试");
                }
            });
    }

    @GetMapping("/{entryId}")
    public ApiResponse<OutboxOperations.Entry> inspect(
            @RequestHeader(value = "X-Event-Operations-Token", required = false) String token,
            @PathVariable String entryId) {
        guard.require(token);
        return ApiResponse.success(operations.inspect(entryId));
    }

    @PostMapping("/{entryId}/retry")
    public ApiResponse<OutboxOperations.RetryResult> retry(
            @RequestHeader(value = "X-Event-Operations-Token", required = false) String token,
            @PathVariable String entryId, @RequestBody OutboxOperations.RetryRequest request) {
        guard.require(token);
        return ApiResponse.success(operations.retry(entryId, request));
    }
}