package ted

import (
	"strconv"
	"strings"
	"time"
	"tm/internal/notice"
)

// mapToTenderFromParsedDoc maps a parsed TED document to tender entity
func (s *TEDScraper) mapToTenderFromParsedDoc(parsedDoc *ParsedDocument, sourceFileURL, sourceFileName string) *notice.Notice {
	switch parsedDoc.Type {
	case DocumentTypeContractNotice:
		if parsedDoc.ContractNotice == nil {
			s.logger.Error("ContractNotice is nil", map[string]interface{}{
				"document_type": string(parsedDoc.Type),
			})
			return nil
		}
		return s.mapToTender(parsedDoc.ContractNotice, sourceFileURL, sourceFileName)

	case DocumentTypeContractAwardNotice:
		if parsedDoc.ContractAwardNotice == nil {
			s.logger.Error("ContractAwardNotice is nil", map[string]interface{}{
				"document_type": string(parsedDoc.Type),
			})
			return nil
		}
		return s.mapContractAwardNoticeToTender(parsedDoc.ContractAwardNotice, sourceFileURL, sourceFileName)

	case DocumentTypePriorInformationNotice:
		if parsedDoc.PriorInformationNotice == nil {
			s.logger.Error("PriorInformationNotice is nil", map[string]interface{}{
				"document_type": string(parsedDoc.Type),
			})
			return nil
		}
		return s.mapGenericNoticeToTender(parsedDoc.PriorInformationNotice, sourceFileURL, sourceFileName)
	default:
		s.logger.Error("Unknown document type for mapping", map[string]interface{}{
			"document_type": string(parsedDoc.Type),
		})
		return nil
	}
}

// mapGenericNoticeToTender maps any TED document type to tender entity using the common interface
func (s *TEDScraper) mapGenericNoticeToTender(doc TEDDocument, sourceFileURL, sourceFileName string) *notice.Notice {
	if doc == nil {
		s.logger.Error("Document is nil in mapGenericNoticeToTender", map[string]interface{}{})
		return nil
	}

	now := time.Now().Unix()

	t := &notice.Notice{
		ContractNoticeID:    doc.GetID(),
		ContractFolderID:    "", // Not available in generic interface
		NoticeTypeCode:      doc.GetNoticeType(),
		NoticeSubTypeCode:   "", // Not available in generic interface
		NoticeLanguageCode:  doc.GetLanguage(),
		IssueDate:           now, // TODO: Parse actual date from document
		IssueTime:           now, // TODO: Parse actual time from document
		GazetteID:           "",  // Not available in generic interface
		NoticePublicationID: "",  // Not available in generic interface
		PublicationDate:     now, // TODO: Parse actual publication date

		// Basic tender information
		Title:          "Generic Notice " + doc.GetNoticeType(),
		Description:    "Processed from " + doc.GetNoticeType() + " document",
		Status:         notice.TenderStatusActive,
		Source:         notice.TenderSourceTEDScraper,
		SourceFileURL:  sourceFileURL,
		SourceFileName: sourceFileName,
		ProcessingMetadata: notice.ProcessingMetadata{
			ScrapedAt:         now,
			ProcessedAt:       now,
			ProcessingVersion: "1.0",
		},
	}

	// Generate the tender ID after creating the tender
	t.TenderID = GenerateTenderID(t)

	return t
}

// mapToTender maps a TED ContractNotice to tender entity
func (s *TEDScraper) mapToTender(cn *ContractNotice, sourceFileURL, sourceFileName string) *notice.Notice {
	now := time.Now().Unix()

	t := &notice.Notice{
		ContractNoticeID:    cn.ID,
		ContractFolderID:    cn.ContractFolderID,
		NoticeTypeCode:      cn.GetNoticeSubType(),
		NoticeSubTypeCode:   cn.GetNoticeSubType(),
		NoticeLanguageCode:  cn.NoticeLanguageCode,
		IssueDate:           ParseDateToUnix(cn.IssueDate),
		IssueTime:           ParseTimeToUnix(cn.IssueTime),
		GazetteID:           cn.GetOJSID(),
		Title:               cn.GetProcurementTitle(),
		Description:         cn.GetProcurementDescription(),
		ProcurementTypeCode: cn.GetContractNature(),
		ProcedureCode:       cn.GetProcedureCode(),
		MainClassification:  cn.GetMainClassification(),
		PlaceOfPerformance:  cn.GetPlaceOfPerformance(),
		DocumentURI:         cn.GetDocumentURI(),
		Status:              notice.TenderStatusActive,
		Source:              notice.TenderSourceTEDScraper,
		SourceFileURL:       sourceFileURL,
		SourceFileName:      sourceFileName,
		ProcessingMetadata: notice.ProcessingMetadata{
			ScrapedAt:         now,
			ProcessedAt:       now,
			ProcessingVersion: "1.0",
		},
	}

	// Set publication information
	if pubInfo := cn.GetPublicationInfo(); pubInfo != nil {
		t.NoticePublicationID = pubInfo.NoticePublicationID
		t.PublicationDate = ParseDateToUnix(pubInfo.PublicationDate)
		t.TenderURL = GenerateTenderURL(pubInfo.NoticePublicationID)
	}

	// Set additional classifications
	if cn.ProcurementProject != nil && cn.ProcurementProject.AdditionalCommodityClassification != nil {
		for _, additionalClass := range cn.ProcurementProject.AdditionalCommodityClassification {
			if additionalClass.ItemClassificationCode != "" {
				t.AdditionalClassifications = append(t.AdditionalClassifications, additionalClass.ItemClassificationCode)
			}
		}
	}

	// Set estimated value and currency
	if amount, currency := cn.GetBudget(); amount != "" {
		if value, err := strconv.ParseFloat(amount, 64); err == nil {
			t.EstimatedValue = value
			t.Currency = currency
		}
	}

	// Set duration information
	if duration, unit := cn.GetDuration(); duration != "" {
		t.Duration = duration
		t.DurationUnit = unit
	}

	// Set tender deadline
	if deadline := cn.GetTenderDeadline(); deadline != "" {
		t.TenderDeadline = ParseDateToUnix(deadline)

		if deadlineTime, err := ParseDate(deadline); err == nil {
			applicationDeadline := CalculateApplicationDeadline(deadlineTime)
			t.ApplicationDeadline = applicationDeadline.Unix()
		}
	}

	if pubDate, err := ParseDate(cn.GetPublicationDate()); err == nil {
		submissionDeadline := CalculateSubmissionDeadline(pubDate)
		t.SubmissionDeadline = submissionDeadline.Unix()
	}

	// Set SubmissionURL from TenderingTerms
	if cn.ProcurementProjectLot != nil && cn.ProcurementProjectLot.TenderingTerms != nil {
		if tenderingTerms := cn.ProcurementProjectLot.TenderingTerms; tenderingTerms.TenderRecipientParty != nil {
			if endpointID := tenderingTerms.TenderRecipientParty.EndpointID; endpointID != "" {
				if strings.HasPrefix(endpointID, "http") {
					t.SubmissionURL = endpointID
				} else {
					t.SubmissionURL = "https://" + endpointID
				}
			}
		}
	}

	// Set location information
	if cn.ProcurementProject != nil && cn.ProcurementProject.RealizedLocation != nil {
		if addr := cn.ProcurementProject.RealizedLocation.Address; addr != nil {
			t.CityName = addr.CityName
			t.PostalCode = addr.PostalZone
			t.RegionCode = addr.CountrySubentityCode
			if addr.Country != nil {
				t.CountryCode = addr.Country.IdentificationCode
			}
		}
	}

	// Set buyer organization
	buyerID := cn.GetBuyerID()
	if buyerID != "" {
		if buyerOrg := cn.GetOrganizationByID(buyerID); buyerOrg != nil {
			t.BuyerOrganization = s.mapOrganization(buyerOrg, "buyer")
		}
	}

	// Set review organization
	reviewID := cn.GetReviewOrganizationID()
	if reviewID != "" {
		if reviewOrg := cn.GetOrganizationByID(reviewID); reviewOrg != nil {
			t.ReviewOrganization = s.mapOrganization(reviewOrg, "review")
		}
	}

	// Set all organizations
	if orgs := cn.GetOrganizations(); orgs != nil {
		for _, org := range orgs.Organization {
			mappedOrg := s.mapOrganization(&org, "")
			if mappedOrg != nil {
				t.Organizations = append(t.Organizations, *mappedOrg)
			}
		}
	}

	// Set selection criteria
	if criteria := cn.GetSelectionCriteria(); criteria != nil {
		for _, criterion := range criteria {
			t.SelectionCriteria = append(t.SelectionCriteria, notice.SelectionCriterion{
				TypeCode:    criterion.CriterionTypeCode,
				Description: criterion.Description,
				LanguageID:  criterion.LanguageID,
			})
		}
	}

	// Set official languages
	if languages := cn.GetOfficialLanguages(); languages != nil {
		t.OfficialLanguages = languages
	}

	// Generate unique tender ID
	t.TenderID = GenerateTenderID(t)

	return t
}

// mapContractAwardNoticeToTender maps a TED ContractAwardNotice to tender entity
func (s *TEDScraper) mapContractAwardNoticeToTender(can *ContractAwardNotice, sourceFileURL, sourceFileName string) *notice.Notice {
	now := time.Now().Unix()

	t := &notice.Notice{
		ContractNoticeID:    can.ID,
		ContractFolderID:    can.ContractFolderID,
		NoticeTypeCode:      can.NoticeTypeCode,
		NoticeSubTypeCode:   can.GetNoticeSubType(),
		NoticeLanguageCode:  can.NoticeLanguageCode,
		IssueDate:           ParseDateToUnix(can.IssueDate),
		IssueTime:           ParseTimeToUnix(can.IssueTime),
		GazetteID:           can.GetOJSID(),
		Title:               can.GetProcurementTitle(),
		Description:         can.GetProcurementDescription(),
		ProcurementTypeCode: can.GetContractNature(),
		ProcedureCode:       can.GetProcedureCode(),
		MainClassification:  can.GetMainClassification(),
		Status:              notice.TenderStatusAwarded, // Award notices are for completed tenders
		Source:              notice.TenderSourceTEDScraper,
		SourceFileURL:       sourceFileURL,
		SourceFileName:      sourceFileName,
		ProcessingMetadata: notice.ProcessingMetadata{
			ScrapedAt:         now,
			ProcessedAt:       now,
			ProcessingVersion: "1.0",
		},
	}

	// Set publication information
	if pubInfo := can.GetPublicationInfo(); pubInfo != nil {
		t.NoticePublicationID = pubInfo.NoticePublicationID
		t.PublicationDate = ParseDateToUnix(pubInfo.PublicationDate)
		t.TenderURL = GenerateTenderURL(pubInfo.NoticePublicationID)
	}

	// Set total award value
	if amount, currency := can.GetTotalAwardValue(); amount != "" {
		if parsedAmount, err := strconv.ParseFloat(amount, 64); err == nil {
			t.EstimatedValue = parsedAmount
		}
		t.Currency = currency
	}

	// Set location information from main procurement project
	if can.ProcurementProject != nil && can.ProcurementProject.RealizedLocation != nil {
		if addr := can.ProcurementProject.RealizedLocation.Address; addr != nil {
			t.CityName = addr.CityName
			t.PostalCode = addr.PostalZone
			t.RegionCode = addr.CountrySubentityCode
			if addr.Country != nil {
				t.CountryCode = addr.Country.IdentificationCode
			}
		}
	}

	// Set buyer organization
	buyerID := can.GetBuyerID()
	if buyerID != "" {
		if buyerOrg := can.GetOrganizationByID(buyerID); buyerOrg != nil {
			t.BuyerOrganization = s.mapOrganization(buyerOrg, "buyer")
		}
	}

	// Set all organizations
	if orgs := can.GetOrganizations(); orgs != nil {
		for _, org := range orgs.Organization {
			mappedOrg := s.mapOrganization(&org, "")
			if mappedOrg != nil {
				t.Organizations = append(t.Organizations, *mappedOrg)
			}
		}
	}

	// Generate unique tender ID
	t.TenderID = GenerateTenderID(t)

	return t
}

// mapOrganization maps a TED Organization to tender Organization
func (s *TEDScraper) mapOrganization(tedOrg *Organization, role string) *notice.Organization {
	if tedOrg == nil || tedOrg.Company == nil {
		return nil
	}

	company := tedOrg.Company
	org := &notice.Organization{
		Role: role,
	}

	// Set organization ID and name
	if company.PartyIdentification != nil {
		org.ID = company.PartyIdentification.ID
	}
	if company.PartyName != nil {
		org.Name = company.PartyName.Name
	}

	// Set company ID
	if company.PartyLegalEntity != nil {
		org.CompanyID = company.PartyLegalEntity.CompanyID
	}

	// Set website
	org.WebsiteURI = company.WebsiteURI

	// Set contact information
	if company.Contact != nil {
		org.ContactName = company.Contact.Name
		org.ContactTelephone = company.Contact.Telephone
		org.ContactEmail = company.Contact.ElectronicMail
		org.ContactFax = company.Contact.Telefax
	}

	// Set address
	if company.PostalAddress != nil {
		org.Address = notice.Address{
			StreetName:           company.PostalAddress.StreetName,
			CityName:             company.PostalAddress.CityName,
			PostalZone:           company.PostalAddress.PostalZone,
			CountrySubentityCode: company.PostalAddress.CountrySubentityCode,
			Department:           company.PostalAddress.Department,
		}
		if company.PostalAddress.Country != nil {
			org.Address.CountryCode = company.PostalAddress.Country.IdentificationCode
		}
	}

	return org
}