package qualityowner

import (
	"encoding/json"
	"errors"
	"time"
)

const (
	ConfigKey             = "quality_owner.rules"
	StatusNone            = "none"
	StatusActive          = "active"
	DepositSourcePaid     = "paid"
	DepositSourceManual   = "manual"
	defaultDepositCent    = int64(20_000)
	defaultInsuranceBps   = 800
	defaultPremiumRateBps = 400
)

var ErrInvalidRules = errors.New("invalid quality owner rules")

type Rules struct {
	DepositAmountCent      int64 `json:"deposit_amount_cent"`
	InsuranceFeeBps        int   `json:"insurance_fee_bps"`
	PremiumInsuranceFeeBps int   `json:"premium_insurance_fee_bps"`
}

func DefaultRules() Rules {
	return Rules{
		DepositAmountCent:      defaultDepositCent,
		InsuranceFeeBps:        defaultInsuranceBps,
		PremiumInsuranceFeeBps: defaultPremiumRateBps,
	}
}

func DefaultConfigValue() string {
	raw, _ := json.Marshal(DefaultRules())
	return string(raw)
}

func ParseConfigValue(value string) (Rules, error) {
	rules := DefaultRules()
	if value == "" {
		return rules, nil
	}
	if err := json.Unmarshal([]byte(value), &rules); err != nil {
		return Rules{}, ErrInvalidRules
	}
	if rules.DepositAmountCent <= 0 || rules.DepositAmountCent > 10_000_000 {
		return Rules{}, ErrInvalidRules
	}
	if rules.InsuranceFeeBps < 0 || rules.InsuranceFeeBps > 10_000 {
		return Rules{}, ErrInvalidRules
	}
	if rules.PremiumInsuranceFeeBps < 0 || rules.PremiumInsuranceFeeBps > rules.InsuranceFeeBps {
		return Rules{}, ErrInvalidRules
	}
	return rules, nil
}

func MarshalConfig(rules Rules) (string, error) {
	raw, err := json.Marshal(rules)
	if err != nil {
		return "", err
	}
	return string(raw), nil
}

type StatusDTO struct {
	UserID                 uint64     `json:"user_id"`
	Active                 bool       `json:"active"`
	Status                 string     `json:"status"`
	CanCancel              bool       `json:"can_cancel"`
	ActivePremiumListings  int64      `json:"active_premium_listing_count"`
	DepositAmountCent      int64      `json:"deposit_amount_cent"`
	DepositSource          string     `json:"deposit_source"`
	ActivatedAt            *time.Time `json:"activated_at"`
	AvailableBalanceCent   int64      `json:"available_balance_cent"`
	RequiredDepositCent    int64      `json:"required_deposit_cent"`
	InsuranceFeeBps        int        `json:"insurance_fee_bps"`
	PremiumInsuranceFeeBps int        `json:"premium_insurance_fee_bps"`
}

type AdminSetRequest struct {
	Enabled bool   `json:"enabled"`
	Reason  string `json:"reason" binding:"required"`
}