package models

import (
	"strings"
	"time"
)

type Role string

const (
	RoleAdmin Role = "admin"
	RoleUser  Role = "user"
)

type User struct {
	ID           int64
	Username     string
	PasswordHash string
	Role         Role
	CreatedAt    time.Time
}

type Item struct {
	ID                  int64
	Name                string
	SearchQuery         string
	URL                 string
	Category            string
	TargetPrice         *float64
	NtfyTopic           string
	NtfyPriority        string
	PollIntervalMinutes int
	IncludeOutOfStock   bool
	MinPrice            *float64
	ExcludeKeywords     string
	Marketplaces        []string
	ListingType         string
	ActorActive         string
	ActorSold           string
	ActorPriceCompare   string
	UsePriceComparison  bool
	Active              bool
	LastPolledAt        *time.Time
	LastPollError       string
	BestPrice           *float64
	BestPriceStore      string
	BestPriceURL        string
	BestPriceImageURL   string
	BestPriceTitle      string
	CreatedAt           time.Time
	UpdatedAt           time.Time
}

type Result struct {
	ID       int64
	ItemID   int64
	Title    string
	Price    *float64
	Currency string
	URL      string
	Source       string
	ImageURL     string
	MatchedQuery string
	Alerted      bool
	FoundAt      time.Time
}

// SearchQueries returns the item's alias list. Splits on newline, comma, and
// semicolon; trims; drops blanks; dedupes case-insensitively. Result order is
// the user's input order (first occurrence wins).
func (it *Item) SearchQueries() []string {
	return SplitList(it.SearchQuery, 10)
}

// ExcludeKeywordsList returns the item's exclude-keyword list, normalized the
// same way as SearchQueries.
func (it *Item) ExcludeKeywordsList() []string {
	return SplitList(it.ExcludeKeywords, 20)
}

// SplitList splits a user-entered list on newline, comma, or semicolon,
// trims whitespace, drops empty entries, dedupes case-insensitively, and caps
// the result at max entries (0 = no cap).
func SplitList(s string, max int) []string {
	if s == "" {
		return nil
	}
	seen := map[string]bool{}
	var out []string
	for _, part := range strings.FieldsFunc(s, func(r rune) bool {
		return r == '\n' || r == '\r' || r == ',' || r == ';'
	}) {
		t := strings.TrimSpace(part)
		if t == "" {
			continue
		}
		k := strings.ToLower(t)
		if seen[k] {
			continue
		}
		seen[k] = true
		out = append(out, t)
		if max > 0 && len(out) >= max {
			break
		}
	}
	return out
}

type PricePoint struct {
	ID       int64
	ItemID   int64
	Price    float64
	Store    string
	PolledAt time.Time
}

type Setting struct {
	Key       string
	Value     string
	UpdatedAt time.Time
}