package radarmap

import (
	"apps/backend/internal/module/radar/domain"
	"apps/backend/internal/types"
)

/*
ServiceProfile 把 domain 檔案轉成 API 形狀。

p 為 nil 代表使用者還沒建檔：回 exists=false 的空殼，而不是 404 —— 表單本來就要能開空的。
但 exists 這個欄位必須誠實，訂閱閘門（SP-01）與前端引導都看它。
*/
func ServiceProfile(p *domain.ServiceProfile) *types.ServiceProfilePublic {
	if p == nil {
		return &types.ServiceProfilePublic{
			Exists:       false,
			Services:     []types.ServiceItem{},
			Cases:        []types.ServiceCasePublic{},
			Forbidden:    []string{},
			Faq:          []types.FaqItem{},
			ServiceAreas: []string{},
		}
	}
	services := make([]types.ServiceItem, 0, len(p.Services))
	for _, s := range p.Services {
		services = append(services, types.ServiceItem{
			Name:     s.Name,
			PriceMin: s.PriceMin,
			PriceMax: s.PriceMax,
			Currency: s.Currency,
		})
	}
	cases := make([]types.ServiceCasePublic, 0, len(p.Cases))
	for _, c := range p.Cases {
		cases = append(cases, types.ServiceCasePublic{Title: c.Title, Summary: c.Summary, Link: c.Link})
	}
	faq := make([]types.FaqItem, 0, len(p.Faq))
	for _, f := range p.Faq {
		faq = append(faq, types.FaqItem{Question: f.Question, Answer: f.Answer})
	}
	forbidden := p.Forbidden
	if forbidden == nil {
		forbidden = []string{}
	}
	areas := p.ServiceAreas
	if areas == nil {
		areas = []string{}
	}
	return &types.ServiceProfilePublic{
		Exists:       true,
		Services:     services,
		Cases:        cases,
		Forbidden:    forbidden,
		Faq:          faq,
		ServiceAreas: areas,
		RemoteOk:     p.RemoteOk,
		Availability: p.Availability,
		ToneNote:     p.ToneNote,
		UpdatedAt:    p.UpdatedAt,
	}
}

func Watch(w *domain.RadarWatch) *types.RadarWatchPublic {
	if w == nil {
		return nil
	}
	terms, excludes, regions := w.Terms, w.ExcludeTerms, w.Regions
	if terms == nil {
		terms = []string{}
	}
	if excludes == nil {
		excludes = []string{}
	}
	if regions == nil {
		regions = []string{}
	}
	return &types.RadarWatchPublic{
		Id:           w.ID,
		Terms:        terms,
		ExcludeTerms: excludes,
		Regions:      regions,
		Status:       w.Status,
		LastSweptAt:  w.LastSweptAt,
		CreatedAt:    w.CreatedAt,
		UpdatedAt:    w.UpdatedAt,
	}
}

func WatchList(list []*domain.RadarWatch) []types.RadarWatchPublic {
	out := make([]types.RadarWatchPublic, 0, len(list))
	for _, w := range list {
		if p := Watch(w); p != nil {
			out = append(out, *p)
		}
	}
	return out
}

func Pagination(page, pageSize int, total int64) types.Pagination {
	if page < 1 {
		page = 1
	}
	if pageSize < 1 {
		pageSize = 20
	}
	tp := int(total) / pageSize
	if int(total)%pageSize != 0 {
		tp++
	}
	return types.Pagination{Page: page, PageSize: pageSize, Total: total, TotalPages: tp}
}

// ServiceProfileInput 把 PUT 的 request 轉成 domain。owner_uid 一律由 logic 從 JWT 帶入。
func ServiceProfileInput(req *types.UpsertServiceProfileReq) *domain.ServiceProfile {
	if req == nil {
		return nil
	}
	services := make([]domain.ServiceItem, 0, len(req.Services))
	for _, s := range req.Services {
		services = append(services, domain.ServiceItem{
			Name:     s.Name,
			PriceMin: s.PriceMin,
			PriceMax: s.PriceMax,
			Currency: s.Currency,
		})
	}
	cases := make([]domain.ServiceCase, 0, len(req.Cases))
	for _, c := range req.Cases {
		cases = append(cases, domain.ServiceCase{Title: c.Title, Summary: c.Summary, Link: c.Link})
	}
	faq := make([]domain.FaqItem, 0, len(req.Faq))
	for _, f := range req.Faq {
		faq = append(faq, domain.FaqItem{Question: f.Question, Answer: f.Answer})
	}
	return &domain.ServiceProfile{
		Services:     services,
		Cases:        cases,
		Forbidden:    req.Forbidden,
		Faq:          faq,
		ServiceAreas: req.ServiceAreas,
		RemoteOk:     req.RemoteOk,
		Availability: req.Availability,
		ToneNote:     req.ToneNote,
	}
}

func Opportunity(o *domain.Opportunity) *types.OpportunityPublic {
	if o == nil {
		return nil
	}
	reasons := make([]types.OpportunityReason, 0, len(o.Reasons))
	for _, r := range o.Reasons {
		reasons = append(reasons, types.OpportunityReason{Dimension: r.Dimension, Score: r.Score, Reason: r.Reason})
	}
	terms := o.MatchedTerms
	if terms == nil {
		terms = []string{}
	}
	out := &types.OpportunityPublic{
		Id: o.ID, WatchId: o.WatchID, Source: o.Source, SourceScoutPostId: o.SourceScoutPostID,
		ExternalId: o.ExternalID, Permalink: o.Permalink, AuthorHandle: o.AuthorHandle, Text: o.Text,
		PostedAt: o.PostedAt, Status: o.Status, IntentScore: o.IntentScore, IntentBand: o.IntentBand,
		Reasons: reasons, RegionDetected: o.RegionDetected, RegionMatch: o.RegionMatch,
		FreshnessHours: o.FreshnessHours, MatchedService: o.MatchedService, MatchedTerms: terms,
		RejectReason: o.RejectReason, ContactId: o.ContactID, CreatedAt: o.CreatedAt,
	}
	if o.Override != nil {
		out.Override = &types.OpportunityOverride{
			FromBand: o.Override.FromBand, ToBand: o.Override.ToBand,
			FromStatus: o.Override.FromStatus, ToStatus: o.Override.ToStatus,
			ActorUid: o.Override.ActorUID, At: o.Override.At,
		}
	}
	return out
}

func OpportunityList(list []*domain.Opportunity) []types.OpportunityPublic {
	out := make([]types.OpportunityPublic, 0, len(list))
	for _, o := range list {
		if p := Opportunity(o); p != nil {
			out = append(out, *p)
		}
	}
	return out
}

func Sweep(s *domain.RadarSweep) *types.RadarSweepPublic {
	if s == nil {
		return nil
	}
	return &types.RadarSweepPublic{
		Id: s.ID, WatchId: s.WatchID, JobId: s.JobID, Path: s.Path,
		HitCount: s.HitCount, JudgedCount: s.JudgedCount, CreatedCount: s.CreatedCount,
		TruncatedCount: s.TruncatedCount, FailedReason: s.FailedReason, CreditsUsed: s.CreditsUsed,
		StartedAt: s.StartedAt, EndedAt: s.EndedAt,
	}
}

func SweepList(list []*domain.RadarSweep) []types.RadarSweepPublic {
	out := make([]types.RadarSweepPublic, 0, len(list))
	for _, s := range list {
		if p := Sweep(s); p != nil {
			out = append(out, *p)
		}
	}
	return out
}

func Reply(r *domain.ReplyVariant) *types.ReplyVariantPublic {
	if r == nil {
		return nil
	}
	return &types.ReplyVariantPublic{
		Id: r.ID, OpportunityId: r.OpportunityID, Variant: r.Variant, Text: r.Text,
		UsedAt: r.UsedAt, SentChannel: r.SentChannel, CreatedAt: r.CreatedAt,
	}
}

func ReplyList(list []*domain.ReplyVariant) []types.ReplyVariantPublic {
	out := make([]types.ReplyVariantPublic, 0, len(list))
	for _, r := range list {
		if p := Reply(r); p != nil {
			out = append(out, *p)
		}
	}
	return out
}