package com.xly.erp.common.exception;

import com.xly.erp.common.response.ErrorCode;
import jakarta.validation.constraints.NotBlank;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import static org.assertj.core.api.Assertions.assertThat;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

class GlobalExceptionHandlerTest {

    private MockMvc mockMvc;

    @BeforeEach
    void setUp() {
        mockMvc = MockMvcBuilders.standaloneSetup(new DummyController())
                .setControllerAdvice(new GlobalExceptionHandler())
                .build();
    }

    @RestController
    @RequestMapping("/api/__dummy")
    static class DummyController {
        @GetMapping("/biz")
        public Object biz() { throw new BizException(ErrorCode.MOD_PARENT_NOT_FOUND); }

        @GetMapping("/runtime")
        public Object runtime() { throw new RuntimeException("internal boom\nstack-line-1\nstack-line-2"); }

        @PostMapping(value = "/validation", consumes = MediaType.APPLICATION_JSON_VALUE)
        public Object validation(@jakarta.validation.Valid @RequestBody Payload p) { return "ok"; }
    }

    static class Payload {
        @NotBlank String name;
        public String getName() { return name; }
        public void setName(String n) { this.name = n; }
    }

    @Test
    void bizException_returns200WithBizCode() throws Exception {
        mockMvc.perform(get("/api/__dummy/biz"))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.code").value(40411))
                .andExpect(jsonPath("$.message").value("父模块不存在或已删除"));
    }

    @Test
    void validationException_returns200WithParamInvalidCode() throws Exception {
        mockMvc.perform(post("/api/__dummy/validation")
                        .contentType(MediaType.APPLICATION_JSON)
                        .content("{\"name\":\"\"}"))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.code").value(40010));
    }

    @Test
    void uncaughtException_returns200WithInternalErrorCode() throws Exception {
        mockMvc.perform(get("/api/__dummy/runtime"))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.code").value(50000));
    }

    @Test
    void response_doesNotContainStackTrace() throws Exception {
        String body = mockMvc.perform(get("/api/__dummy/runtime"))
                .andReturn().getResponse().getContentAsString();
        assertThat(body)
                .doesNotContain("stack-line-1")
                .doesNotContain("internal boom")
                .doesNotContain("at java.")
                .doesNotContain("Caused by");
    }
}