package handlers

import (
	dbgen "Yimaru-Backend/gen/db"
	"Yimaru-Backend/internal/domain"
	"time"

	"github.com/jackc/pgx/v5/pgtype"
)

type analyticsQueryParams struct {
	UsersSummary            dbgen.AnalyticsUsersSummaryParams
	UsersByRole             dbgen.AnalyticsUsersByRoleParams
	UsersByStatus           dbgen.AnalyticsUsersByStatusParams
	UsersByAgeGroup            dbgen.AnalyticsUsersByAgeGroupParams
	UsersByEducationLevel      dbgen.AnalyticsUsersByEducationLevelParams
	UsersByOccupation          dbgen.AnalyticsUsersByOccupationParams
	UsersByLearningGoal        dbgen.AnalyticsUsersByLearningGoalParams
	UsersByLanguageChallange   dbgen.AnalyticsUsersByLanguageChallangeParams
	UsersByKnowledgeLevel      dbgen.AnalyticsUsersByKnowledgeLevelParams
	UsersByCountry             dbgen.AnalyticsUsersByCountryParams
	UsersByRegion           dbgen.AnalyticsUsersByRegionParams
	UserRegistrationsSeries dbgen.AnalyticsUserRegistrationsLast30DaysParams

	SubscriptionsSummary      dbgen.AnalyticsSubscriptionsSummaryParams
	SubscriptionsByStatus     dbgen.AnalyticsSubscriptionsByStatusParams
	RevenueByPlan             dbgen.AnalyticsRevenueByPlanParams
	NewSubscriptionsSeries    dbgen.AnalyticsNewSubscriptionsLast30DaysParams

	PaymentsSummary   dbgen.AnalyticsPaymentsSummaryParams
	PaymentsByStatus  dbgen.AnalyticsPaymentsByStatusParams
	PaymentsByMethod  dbgen.AnalyticsPaymentsByMethodParams
	RevenueSeries     dbgen.AnalyticsRevenueLast30DaysParams

	QuestionsCounts      dbgen.AnalyticsQuestionsCountsParams
	QuestionsByType      dbgen.AnalyticsQuestionsByTypeParams
	QuestionSetsByType   dbgen.AnalyticsQuestionSetsByTypeParams

	NotificationsSummary dbgen.AnalyticsNotificationsSummaryParams
	NotificationsChannel dbgen.AnalyticsNotificationsByChannelParams
	NotificationsType    dbgen.AnalyticsNotificationsByTypeParams

	IssuesSummary dbgen.AnalyticsIssuesSummaryParams
	IssuesByStatus dbgen.AnalyticsIssuesByStatusParams
	IssuesByType   dbgen.AnalyticsIssuesByTypeParams

	TeamSummary  dbgen.AnalyticsTeamSummaryParams
	TeamByRole   dbgen.AnalyticsTeamByRoleParams
	TeamByStatus dbgen.AnalyticsTeamByStatusParams
}

func newAnalyticsQueryParams(f domain.AnalyticsDateFilter) analyticsQueryParams {
	ref := pgAnalyticsDate(f.RefDate)
	rs, re := pgAnalyticsTimestamptzPtr(f.RangeStart), pgAnalyticsTimestamptzPtr(f.RangeEnd)
	series := dbgen.AnalyticsUserRegistrationsLast30DaysParams{
		SeriesStart: pgAnalyticsDate(f.SeriesStart),
		SeriesEnd:   pgAnalyticsDate(f.SeriesEnd),
		RangeStart:  rs,
		RangeEnd:    re,
	}

	return analyticsQueryParams{
		UsersSummary:            dbgen.AnalyticsUsersSummaryParams{RefDate: ref, RangeStart: rs, RangeEnd: re},
		UsersByRole:             dbgen.AnalyticsUsersByRoleParams{RangeStart: rs, RangeEnd: re},
		UsersByStatus:           dbgen.AnalyticsUsersByStatusParams{RangeStart: rs, RangeEnd: re},
		UsersByAgeGroup:          dbgen.AnalyticsUsersByAgeGroupParams{RangeStart: rs, RangeEnd: re},
		UsersByEducationLevel:    dbgen.AnalyticsUsersByEducationLevelParams{RangeStart: rs, RangeEnd: re},
		UsersByOccupation:        dbgen.AnalyticsUsersByOccupationParams{RangeStart: rs, RangeEnd: re},
		UsersByLearningGoal:      dbgen.AnalyticsUsersByLearningGoalParams{RangeStart: rs, RangeEnd: re},
		UsersByLanguageChallange: dbgen.AnalyticsUsersByLanguageChallangeParams{RangeStart: rs, RangeEnd: re},
		UsersByKnowledgeLevel:    dbgen.AnalyticsUsersByKnowledgeLevelParams{RangeStart: rs, RangeEnd: re},
		UsersByCountry:           dbgen.AnalyticsUsersByCountryParams{RangeStart: rs, RangeEnd: re},
		UsersByRegion:           dbgen.AnalyticsUsersByRegionParams{RangeStart: rs, RangeEnd: re},
		UserRegistrationsSeries: series,

		SubscriptionsSummary:   dbgen.AnalyticsSubscriptionsSummaryParams{RefDate: ref, RangeStart: rs, RangeEnd: re},
		SubscriptionsByStatus:  dbgen.AnalyticsSubscriptionsByStatusParams{RangeStart: rs, RangeEnd: re},
		RevenueByPlan:          dbgen.AnalyticsRevenueByPlanParams{RangeStart: rs, RangeEnd: re},
		NewSubscriptionsSeries: dbgen.AnalyticsNewSubscriptionsLast30DaysParams{
			SeriesStart: series.SeriesStart,
			SeriesEnd:   series.SeriesEnd,
			RangeStart:  rs,
			RangeEnd:    re,
		},

		PaymentsSummary:  dbgen.AnalyticsPaymentsSummaryParams{RangeStart: rs, RangeEnd: re},
		PaymentsByStatus: dbgen.AnalyticsPaymentsByStatusParams{RangeStart: rs, RangeEnd: re},
		PaymentsByMethod: dbgen.AnalyticsPaymentsByMethodParams{RangeStart: rs, RangeEnd: re},
		RevenueSeries: dbgen.AnalyticsRevenueLast30DaysParams{
			SeriesStart: series.SeriesStart,
			SeriesEnd:   series.SeriesEnd,
			RangeStart:  rs,
			RangeEnd:    re,
		},

		QuestionsCounts:    dbgen.AnalyticsQuestionsCountsParams{RangeStart: rs, RangeEnd: re},
		QuestionsByType:    dbgen.AnalyticsQuestionsByTypeParams{RangeStart: rs, RangeEnd: re},
		QuestionSetsByType: dbgen.AnalyticsQuestionSetsByTypeParams{RangeStart: rs, RangeEnd: re},

		NotificationsSummary: dbgen.AnalyticsNotificationsSummaryParams{RangeStart: rs, RangeEnd: re},
		NotificationsChannel: dbgen.AnalyticsNotificationsByChannelParams{RangeStart: rs, RangeEnd: re},
		NotificationsType:    dbgen.AnalyticsNotificationsByTypeParams{RangeStart: rs, RangeEnd: re},

		IssuesSummary:  dbgen.AnalyticsIssuesSummaryParams{RangeStart: rs, RangeEnd: re},
		IssuesByStatus: dbgen.AnalyticsIssuesByStatusParams{RangeStart: rs, RangeEnd: re},
		IssuesByType:   dbgen.AnalyticsIssuesByTypeParams{RangeStart: rs, RangeEnd: re},

		TeamSummary:  dbgen.AnalyticsTeamSummaryParams{RangeStart: rs, RangeEnd: re},
		TeamByRole:   dbgen.AnalyticsTeamByRoleParams{RangeStart: rs, RangeEnd: re},
		TeamByStatus: dbgen.AnalyticsTeamByStatusParams{RangeStart: rs, RangeEnd: re},
	}
}

func pgAnalyticsDate(t time.Time) pgtype.Date {
	return pgtype.Date{Time: t.UTC(), Valid: true}
}

func pgAnalyticsTimestamptzPtr(t *time.Time) pgtype.Timestamptz {
	if t == nil {
		return pgtype.Timestamptz{Valid: false}
	}
	return pgtype.Timestamptz{Time: t.UTC(), Valid: true}
}