package v1

import (
	"bytes"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/gin-gonic/gin"
	"github.com/stretchr/testify/assert"
)

func setupAgentBotInboxRouter() *gin.Engine {
	gin.SetMode(gin.TestMode)
	r := gin.New()
	r.RedirectTrailingSlash = false

	handler := NewAgentBotInboxHandler(nil)

	inboxes := r.Group("/api/v1/accounts/:account_id/agent_bot_inboxes")
	{
		inboxes.POST("/", handler.Bind)
		inboxes.DELETE("/:id", handler.Unbind)
		inboxes.PATCH("/:id/status", handler.UpdateStatus)
		inboxes.GET("/", handler.ListByInbox)
		inboxes.GET("/by_bot", handler.ListByBot)
	}

	return r
}

// ========================================
// AgentBotInbox — param validation tests
// ========================================

func TestAgentBotInbox_Bind_BadAccountID(t *testing.T) {
	r := setupAgentBotInboxRouter()

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/accounts/abc/agent_bot_inboxes/", nil)
	r.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code)

	var resp map[string]interface{}
	json.Unmarshal(w.Body.Bytes(), &resp)
	errBody := resp["error"].(map[string]interface{})
	assert.Contains(t, errBody["message"], "invalid account_id")
}

func TestAgentBotInbox_Bind_InvalidJSON(t *testing.T) {
	r := setupAgentBotInboxRouter()

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/accounts/1/agent_bot_inboxes/", bytes.NewReader([]byte("invalid json")))
	req.Header.Set("Content-Type", "application/json")
	r.ServeHTTP(w, req)

	// account_id passes, ShouldBindJSON fails
	assert.Equal(t, http.StatusBadRequest, w.Code)

	var resp map[string]interface{}
	json.Unmarshal(w.Body.Bytes(), &resp)
	assert.False(t, resp["success"].(bool))
}

func TestAgentBotInbox_Unbind_BadID(t *testing.T) {
	r := setupAgentBotInboxRouter()

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("DELETE", "/api/v1/accounts/1/agent_bot_inboxes/abc", nil)
	r.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code)

	var resp map[string]interface{}
	json.Unmarshal(w.Body.Bytes(), &resp)
	errBody := resp["error"].(map[string]interface{})
	assert.Contains(t, errBody["message"], "invalid binding ID")
}

func TestAgentBotInbox_UpdateStatus_BadID(t *testing.T) {
	r := setupAgentBotInboxRouter()

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("PATCH", "/api/v1/accounts/1/agent_bot_inboxes/abc/status", nil)
	r.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code)

	var resp map[string]interface{}
	json.Unmarshal(w.Body.Bytes(), &resp)
	errBody := resp["error"].(map[string]interface{})
	assert.Contains(t, errBody["message"], "invalid binding ID")
}

func TestAgentBotInbox_UpdateStatus_InvalidJSON(t *testing.T) {
	r := setupAgentBotInboxRouter()

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("PATCH", "/api/v1/accounts/1/agent_bot_inboxes/1/status", bytes.NewReader([]byte("invalid json")))
	req.Header.Set("Content-Type", "application/json")
	r.ServeHTTP(w, req)

	// id passes, ShouldBindJSON fails
	assert.Equal(t, http.StatusBadRequest, w.Code)

	var resp map[string]interface{}
	json.Unmarshal(w.Body.Bytes(), &resp)
	assert.False(t, resp["success"].(bool))
}

func TestAgentBotInbox_ListByInbox_MissingInboxID(t *testing.T) {
	r := setupAgentBotInboxRouter()

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/agent_bot_inboxes/", nil)
	r.ServeHTTP(w, req)

	// ListByInbox requires inbox_id query param
	assert.Equal(t, http.StatusBadRequest, w.Code)

	var resp map[string]interface{}
	json.Unmarshal(w.Body.Bytes(), &resp)
	errBody := resp["error"].(map[string]interface{})
	assert.Contains(t, errBody["message"], "inbox_id")
}

func TestAgentBotInbox_ListByInbox_BadInboxID(t *testing.T) {
	r := setupAgentBotInboxRouter()

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/agent_bot_inboxes/?inbox_id=abc", nil)
	r.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code)

	var resp map[string]interface{}
	json.Unmarshal(w.Body.Bytes(), &resp)
	errBody := resp["error"].(map[string]interface{})
	assert.Contains(t, errBody["message"], "invalid inbox_id")
}

func TestAgentBotInbox_ListByBot_MissingBotID(t *testing.T) {
	r := setupAgentBotInboxRouter()

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/agent_bot_inboxes/by_bot", nil)
	r.ServeHTTP(w, req)

	// ListByBot requires agent_bot_id query param
	assert.Equal(t, http.StatusBadRequest, w.Code)

	var resp map[string]interface{}
	json.Unmarshal(w.Body.Bytes(), &resp)
	errBody := resp["error"].(map[string]interface{})
	assert.Contains(t, errBody["message"], "agent_bot_id")
}

func TestAgentBotInbox_ListByBot_BadBotID(t *testing.T) {
	r := setupAgentBotInboxRouter()

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/agent_bot_inboxes/by_bot?agent_bot_id=abc", nil)
	r.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code)

	var resp map[string]interface{}
	json.Unmarshal(w.Body.Bytes(), &resp)
	errBody := resp["error"].(map[string]interface{})
	assert.Contains(t, errBody["message"], "invalid agent_bot_id")
}