package service

import (
	"cybertron/constants"
	"cybertron/models/db"
	"cybertron/pkg/houstonClient"
	"cybertron/pkg/kafka/producer"
	"cybertron/pkg/log"
	"go.uber.org/zap"
	"net/http"

	"github.com/gin-gonic/gin"
	"gorm.io/gorm"
)

type HoustonService struct {
	logger        *log.Logger
	dbClient      *gorm.DB
	kafkaProducer producer.KProducer
	houstonClient houstonClient.HoustonClientInterface
}

type CreateHoustonRequest struct {
	Title           string `json:"title"`
	SeverityId      int    `json:"severityId"`
	Description     string `json:"description"`
	ReportingTeamId int    `json:"reportingTeamId"`
	ResponderTeamId int    `json:"responderTeamId"`
	ProductIds      []int  `json:"productIds"`
	CreatedBy       string `json:"createdBy"`
	ErrorID         string `json:"errorId"`
}

func NewHoustonService(logger *log.Logger, dbClient *gorm.DB, kafkaProducer producer.KProducer, houstonClient houstonClient.HoustonClientInterface) *HoustonService {
	return &HoustonService{
		logger:        logger,
		dbClient:      dbClient,
		kafkaProducer: kafkaProducer,
		houstonClient: houstonClient,
	}
}

func (houstonService *HoustonService) CreateHouston(c *gin.Context) {
	var request CreateHoustonRequest
	userEmail := c.GetHeader(constants.EMAIL_HEADER_NAME)
	issueId := c.GetHeader(constants.ISSUE_ID_HEADER_NAME)
	if err := c.BindJSON(&request); err != nil {
		houstonService.logger.Error("Error binding JSON:", zap.Error(err))
		createErrorResponse(c, http.StatusBadRequest, "Invalid request payload")
		return
	}

	if userEmail == "" || issueId == "" {
		houstonService.logger.Error("User email not found in headers")
		createErrorResponse(c, http.StatusBadRequest, "BAD REQUEST")
		return
	}

	request.CreatedBy = userEmail
	request.ErrorID = ""

	if missingFields := validateCreateHoustonRequest(request); len(missingFields) > 0 {
		houstonService.logger.Info("Missing required fields:", zap.Strings("missingFields", missingFields))
		c.JSON(http.StatusBadRequest, gin.H{
			"message": "Missing required fields",
			"fields":  missingFields,
		})
		return
	}

	// Make the POST request using houstonClient
	response, err := houstonService.houstonClient.CreateIncident(houstonClient.CreateHoustonRequest(request))
	if err != nil {
		houstonService.logger.Error("Error creating incident:", zap.Error(err))
		createErrorResponse(c, http.StatusInternalServerError, "Failed to create incident")
		return
	}

	// Handle the response
	if response.StatusCode != http.StatusOK {
		houstonService.logger.Info("Failed to create incident, status code:", zap.Int("statusCode", response.StatusCode))
		createErrorResponse(c, response.StatusCode, "Failed to create incident")
		return
	}

	result := houstonService.dbClient.Create(&db.Houston{
		ErrorId:   issueId,
		HoustonID: response.Data.ID,
	})

	if result.Error != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": result.Error.Error(), "message": "Failed to create project"})
		return
	}

	// Send the response body back to the client
	c.JSON(http.StatusOK, gin.H{
		"message": "Incident created successfully",
		"data":    response.Data,
	})
}

func (houstonService *HoustonService) GetProducts(c *gin.Context) {
	// Get the products using the houstonClient
	products, err := houstonService.houstonClient.GetAllProducts()
	if err != nil {
		houstonService.logger.Error("Error getting products:", zap.Error(err))
		createErrorResponse(c, http.StatusInternalServerError, "Failed to get products")
		return
	}

	// Send the response back to the client
	c.JSON(http.StatusOK, gin.H{
		"message": "Products fetched successfully",
		"data":    products.Data,
	})
}

func (houstonService *HoustonService) GetResponderTeam(c *gin.Context) {
	// read query params
	productID := c.QueryArray("productId")

	// Get the responder team using the houstonClient
	responderTeam, err := houstonService.houstonClient.GetReportingAndResponder(productID)
	if err != nil {
		houstonService.logger.Error("Error getting responder team:", zap.Error(err))
		createErrorResponse(c, http.StatusInternalServerError, "Failed to get responder team")
		return
	}

	// Send the response back to the client
	c.JSON(http.StatusOK, gin.H{
		"message": "Responder team fetched successfully",
		"data":    responderTeam.Data,
	})
}

func validateCreateHoustonRequest(request CreateHoustonRequest) []string {
	missingFields := []string{}
	if request.Title == "" {
		missingFields = append(missingFields, "title")
	}
	if request.SeverityId == 0 {
		missingFields = append(missingFields, "severityId")
	}
	if request.Description == "" {
		missingFields = append(missingFields, "description")
	}
	if request.ReportingTeamId == 0 {
		missingFields = append(missingFields, "reportingTeamId")
	}
	if request.ResponderTeamId == 0 {
		missingFields = append(missingFields, "responderTeamId")
	}
	if len(request.ProductIds) == 0 {
		missingFields = append(missingFields, "productIds")
	}
	return missingFields
}

func createErrorResponse(c *gin.Context, statusCode int, message string) {
	c.JSON(statusCode, gin.H{
		"message": message,
	})
}