package database

import (
	"context"
	"errors"

	"git.anthrove.art/Anthrove/otter-space-sdk/v4/internal/utils"
	otterError "git.anthrove.art/Anthrove/otter-space-sdk/v4/pkg/error"
	"git.anthrove.art/Anthrove/otter-space-sdk/v4/pkg/models"
	log "github.com/sirupsen/logrus"
	"go.opentelemetry.io/otel/attribute"
	"gorm.io/gorm"
)

func CreateScrapeHistory(ctx context.Context, scrapeHistory models.ScrapeHistory) (models.ScrapeHistory, error) {
	ctx, span, localLogger := utils.SetupTracing(ctx, tracer, "CreateScrapeHistory")
	defer span.End()

	localLogger = localLogger.WithFields(log.Fields{
		"scrape_task_id": scrapeHistory.ScrapeTaskID,
		"user_source_id": scrapeHistory.UserSourceID,
	})

	span.SetAttributes(
		attribute.String("scrape_task_id", string(scrapeHistory.ScrapeTaskID)),
		attribute.String("user_source_id", string(scrapeHistory.UserSourceID)),
	)

	utils.HandleEvent(span, localLogger, "Starting scrapeHistory creation")

	if client == nil {
		return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, &otterError.Database{Reason: otterError.DatabaseIsNotConnected})
	}

	if len(scrapeHistory.ScrapeTaskID) == 0 {
		return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.ScrapeTaskIDIsEmpty})
	}

	if len(scrapeHistory.ScrapeTaskID) != 25 {
		return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.ScrapeTaskIDIsWrongLength})
	}

	if len(scrapeHistory.UserSourceID) == 0 {
		return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.UserSourceIDIsEmpty})
	}

	if len(scrapeHistory.UserSourceID) != 25 {
		return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.UserSourceIsWrongLength})
	}

	result := client.WithContext(ctx).Create(&scrapeHistory)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrDuplicatedKey) {
			return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, &otterError.Database{Reason: otterError.DuplicateKey})
		}
		return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, result.Error)
	}

	utils.HandleEvent(span, localLogger, "scrapeHistory created successfully")
	return scrapeHistory, nil
}

func GetScrapeHistoryByID(ctx context.Context, id models.ScrapeTaskID) (models.ScrapeHistory, error) {
	ctx, span, localLogger := utils.SetupTracing(ctx, tracer, "GetScrapeHistoryByID")
	defer span.End()

	localLogger = localLogger.WithFields(log.Fields{
		"scrape_task_id": id,
	})

	span.SetAttributes(
		attribute.String("scrape_task_id", string(id)),
	)

	utils.HandleEvent(span, localLogger, "Starting get scrapeHistory by ID")

	var post models.ScrapeHistory

	if len(id) == 0 {
		return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.ScrapeTaskIDIsEmpty})
	}

	if len(id) != 25 {
		return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.ScrapeTaskIDIsWrongLength})
	}

	result := client.WithContext(ctx).First(&post, "scrape_task_id = ?", id)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, &otterError.Database{Reason: otterError.NoDataFound})
		}
		return models.ScrapeHistory{}, utils.HandleError(ctx, span, localLogger, result.Error)
	}

	utils.HandleEvent(span, localLogger, "scrapeHistory retrieved successfully")
	return post, nil
}

// UpdateScrapeHistory updates the scrape history information in the database.
// Only a few parameter can be updated:
//   - FinishedAt
//   - Error
//   - AddedPosts
//   - DeletedPosts
func UpdateScrapeHistory(ctx context.Context, scrapeHistory models.ScrapeHistory) error {
	ctx, span, localLogger := utils.SetupTracing(ctx, tracer, "UpdateScrapeHistory")
	defer span.End()

	localLogger = localLogger.WithFields(log.Fields{
		"scrape_task_id": scrapeHistory.ScrapeTaskID,
	})

	span.SetAttributes(
		attribute.String("scrape_task_id", string(scrapeHistory.ScrapeTaskID)),
	)

	utils.HandleEvent(span, localLogger, "Starting scrapeHistory update")

	if len(scrapeHistory.ScrapeTaskID) == 0 {
		return utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.ScrapeTaskIDIsEmpty})
	}

	if len(scrapeHistory.ScrapeTaskID) != 25 {
		return utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.ScrapeTaskIDIsWrongLength})
	}

	updateScrapeHistory := models.ScrapeHistory{
		ScrapeTaskID: scrapeHistory.ScrapeTaskID,
		UserSourceID: scrapeHistory.UserSourceID,
		FinishedAt:   scrapeHistory.FinishedAt,
		Error:        scrapeHistory.Error,
		AddedPosts:   scrapeHistory.AddedPosts,
		DeletedPosts: scrapeHistory.DeletedPosts,
	}

	result := client.WithContext(ctx).Model(&updateScrapeHistory).Updates(updateScrapeHistory)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return utils.HandleError(ctx, span, localLogger, &otterError.Database{Reason: otterError.NoDataFound})
		}
		return utils.HandleError(ctx, span, localLogger, result.Error)
	}

	utils.HandleEvent(span, localLogger, "scrapeHistory updated successfully")
	return nil
}

func DeleteScrapeHistory(ctx context.Context, id models.ScrapeTaskID) error {
	ctx, span, localLogger := utils.SetupTracing(ctx, tracer, "DeleteScrapeHistory")
	defer span.End()

	localLogger = localLogger.WithFields(log.Fields{
		"scrape_task_id": id,
	})

	span.SetAttributes(
		attribute.String("scrape_task_id", string(id)),
	)

	utils.HandleEvent(span, localLogger, "Starting delete scrapeHistory")

	var scrapeHistory models.ScrapeHistory

	if len(id) == 0 {
		return utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.ScrapeTaskIDIsEmpty})
	}

	if len(id) != 25 {
		return utils.HandleError(ctx, span, localLogger, &otterError.EntityValidationFailed{Reason: otterError.ScrapeTaskIDIsWrongLength})
	}

	result := client.WithContext(ctx).Delete(&scrapeHistory, "scrape_task_id = ?", id)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return utils.HandleError(ctx, span, localLogger, &otterError.Database{Reason: otterError.NoDataFound})
		}
		return utils.HandleError(ctx, span, localLogger, result.Error)
	}

	utils.HandleEvent(span, localLogger, "scrapeHistory deleted successfully")
	return nil
}