package postgresflexalpha

import (
	"fmt"
	"strconv"

	"github.com/hashicorp/terraform-plugin-framework/types"

	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/postgresflexalpha"
	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
)

// mapFields maps fields from a ListDatabase API response to a resourceModel for the data source.
func mapFields(
	source *postgresflexalpha.ListDatabase,
	model *dataSourceModel,
	region string,
) error {
	if source == nil {
		return fmt.Errorf("response is nil")
	}
	if source.Id == nil || *source.Id == 0 {
		return fmt.Errorf("id not present")
	}
	if model == nil {
		return fmt.Errorf("model given is nil")
	}

	var databaseId int64
	if model.DatabaseId.ValueInt64() != 0 {
		databaseId = model.DatabaseId.ValueInt64()
	} else if source.Id != nil {
		databaseId = *source.Id
	} else {
		return fmt.Errorf("database id not present")
	}

	model.Id = types.Int64Value(databaseId)
	model.DatabaseId = types.Int64Value(databaseId)
	model.Name = types.StringValue(source.GetName())
	model.Owner = types.StringPointerValue(cleanString(source.Owner))
	model.Region = types.StringValue(region)
	model.ProjectId = types.StringValue(model.ProjectId.ValueString())
	model.InstanceId = types.StringValue(model.InstanceId.ValueString())
	model.TerraformID = utils.BuildInternalTerraformId(
		model.ProjectId.ValueString(),
		region,
		model.InstanceId.ValueString(),
		strconv.FormatInt(databaseId, 10),
	)

	return nil
}

// mapResourceFields maps fields from a GetDatabase API response to a resourceModel for the resource.
func mapResourceFields(source *postgresflexalpha.GetDatabaseResponse, model *resourceModel) error {
	if source == nil {
		return fmt.Errorf("response is nil")
	}
	if source.Id == nil || *source.Id == 0 {
		return fmt.Errorf("id not present")
	}
	if model == nil {
		return fmt.Errorf("model input is nil")
	}

	var databaseId int64
	if model.Id.ValueInt64() != 0 {
		databaseId = model.Id.ValueInt64()
	} else if source.Id != nil {
		databaseId = *source.Id
	} else {
		return fmt.Errorf("database id not present")
	}

	model.Id = types.Int64Value(databaseId)
	model.DatabaseId = types.Int64Value(databaseId)
	model.Name = types.StringValue(source.GetName())
	model.Owner = types.StringPointerValue(cleanString(source.Owner))
	return nil
}

// toCreatePayload converts the resource model to an API create payload.
func toCreatePayload(model *resourceModel) (*postgresflexalpha.CreateDatabaseRequestPayload, error) {
	if model == nil {
		return nil, fmt.Errorf("nil model")
	}

	return &postgresflexalpha.CreateDatabaseRequestPayload{
		Name:  model.Name.ValueStringPointer(),
		Owner: model.Owner.ValueStringPointer(),
	}, nil
}