package staff

import (
	"errors"

	"github.com/gofiber/fiber/v2"
	"github.com/jackc/pgx/v5"
	"github.com/techxcar/backend/internal/auth"
	"github.com/techxcar/backend/pkg/database"
)

func RegisterRoutes(app *fiber.App, db *database.DB, secret string) {
	ro := []fiber.Handler{
		auth.RequireAuth(secret),
		auth.RequireRole("tenant_admin", "manager", "technician"),
		auth.TenantMiddleware(db),
	}
	write := []fiber.Handler{
		auth.RequireAuth(secret),
		auth.RequireRole("tenant_admin", "manager"),
		auth.TenantMiddleware(db),
	}

	app.Get("/api/v1/staff", append(ro, listStaffH())...)
	app.Post("/api/v1/staff", append(write, createStaffH())...)
	app.Put("/api/v1/staff/:id", append(write, updateStaffH())...)
	app.Delete("/api/v1/staff/:id", append(write, deleteStaffH())...)
}

func listStaffH() fiber.Handler {
	return func(c *fiber.Ctx) error {
		conn := auth.GetConn(c)
		list, err := ListStaff(c.Context(), conn)
		if err != nil {
			return fiber.NewError(500, "erro ao listar técnicos")
		}
		if list == nil {
			list = []*Staff{}
		}
		return c.JSON(fiber.Map{"data": list, "error": nil})
	}
}

type staffBody struct {
	Name       string  `json:"name"`
	Email      string  `json:"email"`
	Phone      string  `json:"phone"`
	Type       string  `json:"type"`
	HourlyRate float64 `json:"hourly_rate"`
	Active     bool    `json:"active"`
}

func createStaffH() fiber.Handler {
	return func(c *fiber.Ctx) error {
		var b staffBody
		if err := c.BodyParser(&b); err != nil {
			return fiber.NewError(400, "corpo do pedido inválido")
		}
		if b.Name == "" {
			return fiber.NewError(400, "nome obrigatório")
		}
		if b.Type != "internal" && b.Type != "external" {
			return fiber.NewError(400, "tipo deve ser 'internal' ou 'external'")
		}
		conn := auth.GetConn(c)
		s, err := CreateStaff(c.Context(), conn, b.Name, b.Email, b.Phone, b.Type, b.HourlyRate)
		if err != nil {
			return fiber.NewError(500, "erro ao criar técnico")
		}
		return c.Status(201).JSON(fiber.Map{"data": s, "error": nil})
	}
}

func updateStaffH() fiber.Handler {
	return func(c *fiber.Ctx) error {
		id := c.Params("id")
		var b staffBody
		if err := c.BodyParser(&b); err != nil {
			return fiber.NewError(400, "corpo do pedido inválido")
		}
		if b.Name == "" {
			return fiber.NewError(400, "nome obrigatório")
		}
		conn := auth.GetConn(c)
		s, err := UpdateStaff(c.Context(), conn, id, b.Name, b.Email, b.Phone, b.Type, b.HourlyRate, b.Active)
		if err != nil {
			return fiber.NewError(500, "erro ao actualizar técnico")
		}
		if s == nil {
			return fiber.NewError(404, "técnico não encontrado")
		}
		return c.JSON(fiber.Map{"data": s, "error": nil})
	}
}

func deleteStaffH() fiber.Handler {
	return func(c *fiber.Ctx) error {
		id := c.Params("id")
		conn := auth.GetConn(c)
		err := DeleteStaff(c.Context(), conn, id)
		if errors.Is(err, pgx.ErrNoRows) {
			return fiber.NewError(404, "técnico não encontrado")
		}
		if err != nil {
			return fiber.NewError(500, "erro ao eliminar técnico")
		}
		return c.SendStatus(204)
	}
}