package file_attachment

import (
	"errors"
	ep "simrs-vx/internal/domain/main-entities/person"
	up "simrs-vx/internal/use-case/main-use-case/person"
	"strconv"

	pl "simrs-vx/pkg/logger"
	pu "simrs-vx/pkg/use-case-helper"

	dg "github.com/karincake/apem/db-gorm-pg"
	d "github.com/karincake/dodol"
	"gorm.io/gorm"

	ecore "simrs-vx/internal/domain/base-entities/core"
	eru "simrs-vx/internal/domain/references/upload"

	e "simrs-vx/internal/domain/main-entities/file-attachment"
)

const source = "file-attachment"

func Create(input e.CreateDto) (*d.Data, error) {
	data := e.FileAttachment{}

	event := pl.Event{
		Feature: "Create",
		Source:  source,
	}

	// Start log
	pl.SetLogInfo(&event, input, "started", "create")

	err := dg.I.Transaction(func(tx *gorm.DB) error {
		mwRunner := newMiddlewareRunner(&event, tx)
		mwRunner.setMwType(pu.MWTPre)

		// Run pre-middleware
		err := mwRunner.RunCreateMiddleware(createPreMw, &input, &data)
		if err != nil {
			return err
		}

		if !eru.IsValidUploadCode(input.EntityType_Code, input.Type_Code) {
			return errors.New("invalid upload code")
		}

		input.FilePath, err = uploadAndGenerateFileUrl(input, &event)
		if err != nil {
			return err
		}

		// get uploadData
		dataUpload, _, err := ReadListData(e.ReadListDto{
			FilterDto: e.FilterDto{
				EntityType_Code: input.EntityType_Code,
				Ref_Id:          input.Ref_Id,
				Type_Code:       input.Type_Code,
			},
			Pagination: ecore.Pagination{PageSize: 1}}, &event, tx)
		if err != nil {
			return err
		}

		if len(dataUpload) > 0 {
			if err := removeUploadedFile(string(input.EntityType_Code), *dataUpload[0].FilePath, &event); err != nil {
				return err
			}
		}

		if resData, err := CreateData(input, &event, tx); err != nil {
			return err
		} else {
			data = *resData
		}

		if input.EntityType_Code == eru.ETCPerson {
			// get person
			dataPerson, err := up.ReadDetailData(ep.ReadDetailDto{Id: *data.Ref_Id}, &event, tx)
			if err != nil {
				return err
			}

			if err := setPersonAttachment(dataPerson, data, &event, tx); err != nil {
				return err
			}
		}

		mwRunner.setMwType(pu.MWTPost)
		// Run post-middleware
		if err := mwRunner.RunCreateMiddleware(createPostMw, &input, &data); err != nil {
			return err
		}

		pl.SetLogInfo(&event, nil, "complete")

		return nil
	})

	if err != nil {
		return nil, err
	}

	return &d.Data{
		Meta: d.II{
			"source":    source,
			"structure": "single-data",
			"status":    "created",
		},
		Data: data.ToResponse(),
	}, nil
}

func ReadList(input e.ReadListDto) (*d.Data, error) {
	var data *e.FileAttachment
	var dataList []e.FileAttachment
	var metaList *e.MetaDto
	var err error

	event := pl.Event{
		Feature: "ReadList",
		Source:  source,
	}

	// Start log
	pl.SetLogInfo(&event, input, "started", "readList")

	err = dg.I.Transaction(func(tx *gorm.DB) error {
		mwRunner := newMiddlewareRunner(&event, tx)
		mwRunner.setMwType(pu.MWTPre)
		// Run pre-middleware
		if err := mwRunner.RunReadListMiddleware(readListPreMw, &input, data); err != nil {
			return err
		}

		if dataList, metaList, err = ReadListData(input, &event, tx); err != nil {
			return err
		}

		mwRunner.setMwType(pu.MWTPost)
		// Run post-middleware
		if err := mwRunner.RunReadListMiddleware(readListPostMw, &input, data); err != nil {
			return err
		}

		return nil
	})

	if err != nil {
		return nil, err
	}

	return &d.Data{
		Meta: d.IS{
			"source":              source,
			"structure":           "list-data",
			"status":              "fetched",
			"page_number":         strconv.Itoa(metaList.PageNumber),
			"page_size":           strconv.Itoa(metaList.PageSize),
			"record_totalCount":   strconv.Itoa(metaList.Count),
			"record_currentCount": strconv.Itoa(len(dataList)),
		},
		Data: e.ToResponseList(dataList),
	}, nil
}

func ReadDetail(input e.ReadDetailDto) (*d.Data, error) {
	var data *e.FileAttachment
	var err error

	event := pl.Event{
		Feature: "ReadDetail",
		Source:  source,
	}

	// Start log
	pl.SetLogInfo(&event, input, "started", "readDetail")

	err = dg.I.Transaction(func(tx *gorm.DB) error {
		mwRunner := newMiddlewareRunner(&event, tx)
		mwRunner.setMwType(pu.MWTPre)
		// Run pre-middleware
		if err := mwRunner.RunReadDetailMiddleware(readDetailPreMw, &input, data); err != nil {
			return err
		}

		if data, err = ReadDetailData(input, &event, tx); err != nil {
			return err
		}

		mwRunner.setMwType(pu.MWTPost)
		// Run post-middleware
		if err := mwRunner.RunReadDetailMiddleware(readDetailPostMw, &input, data); err != nil {
			return err
		}

		return nil
	})

	if err != nil {
		return nil, err
	}

	return &d.Data{
		Meta: d.IS{
			"source":    source,
			"structure": "single-data",
			"status":    "fetched",
		},
		Data: data.ToResponse(),
	}, nil
}

func Update(input e.UpdateDto) (*d.Data, error) {
	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
	var data *e.FileAttachment
	var err error

	event := pl.Event{
		Feature: "Update",
		Source:  source,
	}

	// Start log
	pl.SetLogInfo(&event, input, "started", "update")

	err = dg.I.Transaction(func(tx *gorm.DB) error {
		pl.SetLogInfo(&event, rdDto, "started", "DBReadDetail")
		if data, err = ReadDetailData(rdDto, &event, tx); err != nil {
			return err
		}

		mwRunner := newMiddlewareRunner(&event, tx)
		mwRunner.setMwType(pu.MWTPre)
		// Run pre-middleware
		if err := mwRunner.RunUpdateMiddleware(readDetailPreMw, &rdDto, data); err != nil {
			return err
		}

		if !eru.IsValidUploadCode(input.EntityType_Code, input.Type_Code) {
			return errors.New("invalid upload code")
		}

		if data, err = ReadDetailData(rdDto, &event, tx); err != nil {
			return err
		}

		input.FilePath, err = uploadAndGenerateFileUrl(input.CreateDto, &event)
		if err != nil {
			return err
		}

		if err := removeUploadedFile(string(input.EntityType_Code), *data.FilePath, &event); err != nil {
			return err
		}

		if err = UpdateData(input, data, &event, tx); err != nil {
			return err
		}

		if input.EntityType_Code == eru.ETCPerson {
			// get person
			dataPerson, err := up.ReadDetailData(ep.ReadDetailDto{Id: *data.Ref_Id}, &event, tx)
			if err != nil {
				return err
			}

			if err := setPersonAttachment(dataPerson, *data, &event, tx); err != nil {
				return err
			}
		}

		pl.SetLogInfo(&event, nil, "complete")

		mwRunner.setMwType(pu.MWTPost)
		// Run post-middleware
		if err := mwRunner.RunUpdateMiddleware(readDetailPostMw, &rdDto, data); err != nil {
			return err
		}

		return nil
	})

	if err != nil {
		return nil, err
	}

	return &d.Data{
		Meta: d.IS{
			"source":    source,
			"structure": "single-data",
			"status":    "updated",
		},
		Data: data.ToResponse(),
	}, nil

}

func Delete(input e.DeleteDto) (*d.Data, error) {
	rdDto := e.ReadDetailDto{Id: uint16(input.Id)}
	var data *e.FileAttachment
	var err error

	event := pl.Event{
		Feature: "Delete",
		Source:  source,
	}

	// Start log
	pl.SetLogInfo(&event, input, "started", "delete")

	err = dg.I.Transaction(func(tx *gorm.DB) error {
		pl.SetLogInfo(&event, rdDto, "started", "DBReadDetail")
		if data, err = ReadDetailData(rdDto, &event, tx); err != nil {
			return err
		}

		mwRunner := newMiddlewareRunner(&event, tx)
		mwRunner.setMwType(pu.MWTPre)
		// Run pre-middleware
		if err := mwRunner.RunDeleteMiddleware(readDetailPreMw, &rdDto, data); err != nil {
			return err
		}

		if err := removeUploadedFile(string(data.EntityType_Code), *data.FilePath, &event); err != nil {
			return err
		}

		if err := DeleteData(data, &event, tx); err != nil {
			return err
		}

		mwRunner.setMwType(pu.MWTPost)
		// Run post-middleware
		if err := mwRunner.RunDeleteMiddleware(readDetailPostMw, &rdDto, data); err != nil {
			return err
		}

		return nil
	})

	if err != nil {
		return nil, err
	}

	return &d.Data{
		Meta: d.IS{
			"source":    source,
			"structure": "single-data",
			"status":    "deleted",
		},
		Data: data.ToResponse(),
	}, nil

}