package handlers

import (
	"encoding/json"
	"net/http"

	"aggios-app/backend/internal/repository"

	"github.com/google/uuid"
)

type AgencyHandler struct {
	tenantRepo *repository.TenantRepository
}

func NewAgencyHandler(tenantRepo *repository.TenantRepository) *AgencyHandler {
	return &AgencyHandler{
		tenantRepo: tenantRepo,
	}
}

type AgencyProfileResponse struct {
	ID          string `json:"id"`
	Name        string `json:"name"`
	CNPJ        string `json:"cnpj"`
	Email       string `json:"email"`
	Phone       string `json:"phone"`
	Website     string `json:"website"`
	Address     string `json:"address"`
	City        string `json:"city"`
	State       string `json:"state"`
	Zip         string `json:"zip"`
	RazaoSocial string `json:"razao_social"`
	Description string `json:"description"`
	Industry    string `json:"industry"`
}

type UpdateAgencyProfileRequest struct {
	Name        string `json:"name"`
	CNPJ        string `json:"cnpj"`
	Email       string `json:"email"`
	Phone       string `json:"phone"`
	Website     string `json:"website"`
	Address     string `json:"address"`
	City        string `json:"city"`
	State       string `json:"state"`
	Zip         string `json:"zip"`
	RazaoSocial string `json:"razao_social"`
	Description string `json:"description"`
	Industry    string `json:"industry"`
}

// GetProfile returns the current agency profile
func (h *AgencyHandler) GetProfile(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Get tenant from context (set by middleware)
	tenantID := r.Context().Value("tenantID")
	if tenantID == nil {
		http.Error(w, "Tenant not found", http.StatusUnauthorized)
		return
	}

	// Parse tenant ID
	tid, err := uuid.Parse(tenantID.(string))
	if err != nil {
		http.Error(w, "Invalid tenant ID", http.StatusBadRequest)
		return
	}

	// Get tenant from database
	tenant, err := h.tenantRepo.FindByID(tid)
	if err != nil {
		http.Error(w, "Error fetching profile", http.StatusInternalServerError)
		return
	}
	if tenant == nil {
		http.Error(w, "Tenant not found", http.StatusNotFound)
		return
	}

	response := AgencyProfileResponse{
		ID:          tenant.ID.String(),
		Name:        tenant.Name,
		CNPJ:        tenant.CNPJ,
		Email:       tenant.Email,
		Phone:       tenant.Phone,
		Website:     tenant.Website,
		Address:     tenant.Address,
		City:        tenant.City,
		State:       tenant.State,
		Zip:         tenant.Zip,
		RazaoSocial: tenant.RazaoSocial,
		Description: tenant.Description,
		Industry:    tenant.Industry,
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(response)
}

// UpdateProfile updates the current agency profile
func (h *AgencyHandler) UpdateProfile(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPut && r.Method != http.MethodPatch {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Get tenant from context
	tenantID := r.Context().Value("tenantID")
	if tenantID == nil {
		http.Error(w, "Tenant not found", http.StatusUnauthorized)
		return
	}

	var req UpdateAgencyProfileRequest
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	// Parse tenant ID
	tid, err := uuid.Parse(tenantID.(string))
	if err != nil {
		http.Error(w, "Invalid tenant ID", http.StatusBadRequest)
		return
	}

	// Prepare updates
	updates := map[string]interface{}{
		"name":         req.Name,
		"cnpj":         req.CNPJ,
		"razao_social": req.RazaoSocial,
		"email":        req.Email,
		"phone":        req.Phone,
		"website":      req.Website,
		"address":      req.Address,
		"city":         req.City,
		"state":        req.State,
		"zip":          req.Zip,
		"description":  req.Description,
		"industry":     req.Industry,
	}

	// Update in database
	if err := h.tenantRepo.UpdateProfile(tid, updates); err != nil {
		http.Error(w, "Error updating profile", http.StatusInternalServerError)
		return
	}

	// Fetch updated data
	tenant, err := h.tenantRepo.FindByID(tid)
	if err != nil {
		http.Error(w, "Error fetching updated profile", http.StatusInternalServerError)
		return
	}

	response := AgencyProfileResponse{
		ID:          tenant.ID.String(),
		Name:        tenant.Name,
		CNPJ:        tenant.CNPJ,
		Email:       tenant.Email,
		Phone:       tenant.Phone,
		Website:     tenant.Website,
		Address:     tenant.Address,
		City:        tenant.City,
		State:       tenant.State,
		Zip:         tenant.Zip,
		RazaoSocial: tenant.RazaoSocial,
		Description: tenant.Description,
		Industry:    tenant.Industry,
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(response)
}