package pricing

import (
	"fmt"
	"slices"

	"github.com/manterfield/go-mapreader"
)

type PFM63PricingService struct{}

func NewPFM63PricingService() (*PFM63PricingService, error) {
	return &PFM63PricingService{}, nil
}

func (s *PFM63PricingService) Prices(vars map[string]any) (map[string]Price, error) {
	journey_type, err := mapreader.StrErr(vars, "journet_type")
	if err != nil {
		return nil, fmt.Errorf("parameter not found : %v", err)
	}
	passenger_priority, err := mapreader.BoolErr(vars, "passenger.priority")
	if err != nil {
		return nil, fmt.Errorf("parameter not found : %v", err)
	}
	passenger_history, err := mapreader.IntErr(vars, "passenger.history")
	if err != nil {
		return nil, fmt.Errorf("parameter not found : %v", err)
	}
	destination_postcode, err := mapreader.StrErr(vars, "journey.passenger_drop.properties.postcode")
	if err != nil {
		return nil, fmt.Errorf("parameter not found : %v", err)
	}
	driver_distance, err := mapreader.IntErr(vars, "journey.driver_distance")
	if err != nil {
		return nil, fmt.Errorf("parameter not found : %v", err)
	}
	passenger_distance, err := mapreader.IntErr(vars, "journey.passenger_distance")
	if err != nil {
		return nil, fmt.Errorf("parameter not found : %v", err)
	}

	pricing := 0.0

	if passenger_history == 0 {
		pricing = 0
	} else if passenger_priority && passenger_distance <= 5 {
		pricing = 0
	} else if slices.Contains([]string{"15300", "63000", "63100", "63200", "63015"}, destination_postcode) {
		pricing = 5
	} else if passenger_distance < 15 {
		pricing = 2
	} else if passenger_distance < 30 {
		pricing = 4
	} else if passenger_distance < 45 {
		pricing = 6
	} else if passenger_distance < 60 {
		pricing = 7
	} else if passenger_distance < 75 {
		pricing = 9
	} else if passenger_distance < 90 {
		pricing = 10
	} else if passenger_distance < 105 {
		pricing = 12
	} else if passenger_distance < 120 {
		pricing = 15
	} else if passenger_distance < 140 {
		pricing = 17
	}

	kmCompensation := 0.2
	if journey_type == "carpool" {
		kmCompensation = 0.09
	}

	return map[string]Price{
		"passenger": {
			Amount:   pricing,
			Currency: "EUR/2",
		},
		"driver": {
			Amount:   kmCompensation * float64(driver_distance),
			Currency: "EUR/2",
		},
	}, nil
}