package resolvers

// This file will be automatically regenerated based on the schema, any resolver implementations
// will be copied through when generating and any unknown code will be moved to the end.

import (
	"context"

	"git.aiterp.net/stufflog/server/graph/graphcore"
	"git.aiterp.net/stufflog/server/graph/graphutil"
	"git.aiterp.net/stufflog/server/graph/loaders"
	"git.aiterp.net/stufflog/server/internal/slerrors"
	"git.aiterp.net/stufflog/server/models"
)

func (r *issueResolver) Project(ctx context.Context, obj *models.Issue) (*models.Project, error) {
	return r.Database.Projects().Find(ctx, obj.ProjectID)
}

func (r *issueResolver) Owner(ctx context.Context, obj *models.Issue) (*models.User, error) {
	if obj.OwnerID == "" {
		return nil, nil
	}

	// Shortcut: if only ID is needed, resolve with empty user.
	if !graphutil.SelectsAnyField(ctx, "name", "active", "admin") {
		return &models.User{ID: obj.OwnerID}, nil
	}

	return loaders.UserLoaderFromContext(ctx).Load(obj.OwnerID)
}

func (r *issueResolver) Assignee(ctx context.Context, obj *models.Issue) (*models.User, error) {
	if obj.AssigneeID == "" {
		return nil, nil
	}

	// Shortcut: if only ID is needed, resolve with empty user.
	if !graphutil.SelectsAnyField(ctx, "name", "active", "admin") {
		return &models.User{ID: obj.AssigneeID}, nil
	}

	return loaders.UserLoaderFromContext(ctx).Load(obj.AssigneeID)
}

func (r *issueResolver) Status(ctx context.Context, obj *models.Issue) (*models.ProjectStatus, error) {
	// Shortcut: if description isn't needed, resolve this with issue's properties.
	if !graphutil.SelectsAnyField(ctx, "description") {
		return &models.ProjectStatus{
			ProjectID:   obj.ProjectID,
			Stage:       obj.StatusStage,
			Name:        obj.StatusName,
			Description: "FAKE",
		}, nil
	}

	status, err := r.Database.ProjectStatuses().Find(ctx, obj.ProjectID, obj.StatusName)
	if slerrors.IsNotFound(err) {
		return &models.ProjectStatus{
			ProjectID:   obj.ProjectID,
			Stage:       obj.StatusStage,
			Name:        obj.StatusName,
			Description: "(Deleted or unknown status)",
		}, nil
	} else if err != nil {
		return nil, err
	}

	// If the stage doesn't match, sneakily correct it for next time.
	if status.Stage != obj.StatusStage {
		updatedIssue := *obj
		updatedIssue.StatusStage = status.Stage
		_ = r.Database.Issues().Save(ctx, updatedIssue)
	}

	return status, nil
}

func (r *issueResolver) Tasks(ctx context.Context, obj *models.Issue, filter *models.IssueTaskFilter) ([]*models.IssueTask, error) {
	if filter == nil {
		filter = &models.IssueTaskFilter{}
	}
	filter.IssueTaskIDs = []string{obj.ID}

	return r.Database.IssueTasks().List(ctx, *filter)
}

// Issue returns graphcore.IssueResolver implementation.
func (r *Resolver) Issue() graphcore.IssueResolver { return &issueResolver{r} }

type issueResolver struct{ *Resolver }