package agenda

import (
	"context"
	"time"

	"photum-backend/internal/db/generated"

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

type Service struct {
	queries *generated.Queries
}

func NewService(db *generated.Queries) *Service {
	return &Service{queries: db}
}

type CreateAgendaRequest struct {
	FotID                uuid.UUID `json:"fot_id"`
	DataEvento           time.Time `json:"data_evento"`
	TipoEventoID         uuid.UUID `json:"tipo_evento_id"`
	ObservacoesEvento    string    `json:"observacoes_evento"`
	LocalEvento          string    `json:"local_evento"`
	Endereco             string    `json:"endereco"`
	Horario              string    `json:"horario"`
	QtdFormandos         int32     `json:"qtd_formandos"`
	QtdFotografos        int32     `json:"qtd_fotografos"`
	QtdRecepcionistas    int32     `json:"qtd_recepcionistas"`
	QtdCinegrafistas     int32     `json:"qtd_cinegrafistas"`
	QtdEstudios          int32     `json:"qtd_estudios"`
	QtdPontoFoto         int32     `json:"qtd_ponto_foto"`
	QtdPontoID           int32     `json:"qtd_ponto_id"`
	QtdPontoDecorado     int32     `json:"qtd_ponto_decorado"`
	QtdPontosLed         int32     `json:"qtd_pontos_led"`
	QtdPlataforma360     int32     `json:"qtd_plataforma_360"`
	StatusProfissionais  string    `json:"status_profissionais"`
	FotoFaltante         int32     `json:"foto_faltante"`
	RecepFaltante        int32     `json:"recep_faltante"`
	CineFaltante         int32     `json:"cine_faltante"`
	LogisticaObservacoes string    `json:"logistica_observacoes"`
	PreVenda             bool      `json:"pre_venda"`
}

func (s *Service) CalculateStatus(fotoFaltante, recepFaltante, cineFaltante int32) string {
	if fotoFaltante < 0 || recepFaltante < 0 || cineFaltante < 0 {
		return "ERRO"
	}

	sum := fotoFaltante + recepFaltante + cineFaltante
	if sum == 0 {
		return "OK"
	} else if sum > 0 {
		return "FALTA"
	}

	return "ERRO"
}

func (s *Service) Create(ctx context.Context, req CreateAgendaRequest) (generated.Agenda, error) {
	status := s.CalculateStatus(req.FotoFaltante, req.RecepFaltante, req.CineFaltante)

	params := generated.CreateAgendaParams{
		FotID:                pgtype.UUID{Bytes: req.FotID, Valid: true},
		DataEvento:           pgtype.Date{Time: req.DataEvento, Valid: true},
		TipoEventoID:         pgtype.UUID{Bytes: req.TipoEventoID, Valid: true},
		ObservacoesEvento:    pgtype.Text{String: req.ObservacoesEvento, Valid: req.ObservacoesEvento != ""},
		LocalEvento:          pgtype.Text{String: req.LocalEvento, Valid: req.LocalEvento != ""},
		Endereco:             pgtype.Text{String: req.Endereco, Valid: req.Endereco != ""},
		Horario:              pgtype.Text{String: req.Horario, Valid: req.Horario != ""},
		QtdFormandos:         pgtype.Int4{Int32: req.QtdFormandos, Valid: true},
		QtdFotografos:        pgtype.Int4{Int32: req.QtdFotografos, Valid: true},
		QtdRecepcionistas:    pgtype.Int4{Int32: req.QtdRecepcionistas, Valid: true},
		QtdCinegrafistas:     pgtype.Int4{Int32: req.QtdCinegrafistas, Valid: true},
		QtdEstudios:          pgtype.Int4{Int32: req.QtdEstudios, Valid: true},
		QtdPontoFoto:         pgtype.Int4{Int32: req.QtdPontoFoto, Valid: true},
		QtdPontoID:           pgtype.Int4{Int32: req.QtdPontoID, Valid: true},
		QtdPontoDecorado:     pgtype.Int4{Int32: req.QtdPontoDecorado, Valid: true},
		QtdPontosLed:         pgtype.Int4{Int32: req.QtdPontosLed, Valid: true},
		QtdPlataforma360:     pgtype.Int4{Int32: req.QtdPlataforma360, Valid: true},
		StatusProfissionais:  pgtype.Text{String: status, Valid: true},
		FotoFaltante:         pgtype.Int4{Int32: req.FotoFaltante, Valid: true},
		RecepFaltante:        pgtype.Int4{Int32: req.RecepFaltante, Valid: true},
		CineFaltante:         pgtype.Int4{Int32: req.CineFaltante, Valid: true},
		LogisticaObservacoes: pgtype.Text{String: req.LogisticaObservacoes, Valid: req.LogisticaObservacoes != ""},
		PreVenda:             pgtype.Bool{Bool: req.PreVenda, Valid: true},
	}

	return s.queries.CreateAgenda(ctx, params)
}

func (s *Service) List(ctx context.Context) ([]generated.ListAgendasRow, error) {
	return s.queries.ListAgendas(ctx)
}

func (s *Service) Get(ctx context.Context, id uuid.UUID) (generated.Agenda, error) {
	return s.queries.GetAgenda(ctx, pgtype.UUID{Bytes: id, Valid: true})
}

func (s *Service) Update(ctx context.Context, id uuid.UUID, req CreateAgendaRequest) (generated.Agenda, error) {
	status := s.CalculateStatus(req.FotoFaltante, req.RecepFaltante, req.CineFaltante)

	params := generated.UpdateAgendaParams{
		ID:                   pgtype.UUID{Bytes: id, Valid: true},
		FotID:                pgtype.UUID{Bytes: req.FotID, Valid: true},
		DataEvento:           pgtype.Date{Time: req.DataEvento, Valid: true},
		TipoEventoID:         pgtype.UUID{Bytes: req.TipoEventoID, Valid: true},
		ObservacoesEvento:    pgtype.Text{String: req.ObservacoesEvento, Valid: req.ObservacoesEvento != ""},
		LocalEvento:          pgtype.Text{String: req.LocalEvento, Valid: req.LocalEvento != ""},
		Endereco:             pgtype.Text{String: req.Endereco, Valid: req.Endereco != ""},
		Horario:              pgtype.Text{String: req.Horario, Valid: req.Horario != ""},
		QtdFormandos:         pgtype.Int4{Int32: req.QtdFormandos, Valid: true},
		QtdFotografos:        pgtype.Int4{Int32: req.QtdFotografos, Valid: true},
		QtdRecepcionistas:    pgtype.Int4{Int32: req.QtdRecepcionistas, Valid: true},
		QtdCinegrafistas:     pgtype.Int4{Int32: req.QtdCinegrafistas, Valid: true},
		QtdEstudios:          pgtype.Int4{Int32: req.QtdEstudios, Valid: true},
		QtdPontoFoto:         pgtype.Int4{Int32: req.QtdPontoFoto, Valid: true},
		QtdPontoID:           pgtype.Int4{Int32: req.QtdPontoID, Valid: true},
		QtdPontoDecorado:     pgtype.Int4{Int32: req.QtdPontoDecorado, Valid: true},
		QtdPontosLed:         pgtype.Int4{Int32: req.QtdPontosLed, Valid: true},
		QtdPlataforma360:     pgtype.Int4{Int32: req.QtdPlataforma360, Valid: true},
		StatusProfissionais:  pgtype.Text{String: status, Valid: true},
		FotoFaltante:         pgtype.Int4{Int32: req.FotoFaltante, Valid: true},
		RecepFaltante:        pgtype.Int4{Int32: req.RecepFaltante, Valid: true},
		CineFaltante:         pgtype.Int4{Int32: req.CineFaltante, Valid: true},
		LogisticaObservacoes: pgtype.Text{String: req.LogisticaObservacoes, Valid: req.LogisticaObservacoes != ""},
		PreVenda:             pgtype.Bool{Bool: req.PreVenda, Valid: true},
	}
	return s.queries.UpdateAgenda(ctx, params)
}

func (s *Service) Delete(ctx context.Context, id uuid.UUID) error {
	return s.queries.DeleteAgenda(ctx, pgtype.UUID{Bytes: id, Valid: true})
}