package mutations

import (
	"context"
	"time"

	"git.aiterp.net/rpdata/api/graphql/resolver/types"
	"git.aiterp.net/rpdata/api/internal/auth"
	"git.aiterp.net/rpdata/api/model/change"
	"git.aiterp.net/rpdata/api/model/log"
)

// PostEditArgs is args for the editPost mutation
type PostEditArgs struct {
	Input *struct {
		ID   string
		Time *string
		Kind *string
		Nick *string
		Text *string
	}
}

// EditPost resolves the editPost mutation
func (r *MutationResolver) EditPost(ctx context.Context, args *PostEditArgs) (*types.PostResolver, error) {
	input := args.Input

	token := auth.TokenFromContext(ctx)
	if !token.Permitted("post.edit") {
		return nil, ErrUnauthorized
	}

	postTime := (*time.Time)(nil)
	if args.Input.Time != nil {
		t, err := time.Parse(time.RFC3339Nano, *input.Time)
		if err != nil {
			return nil, err
		}

		postTime = &t
	}

	post, err := log.FindPostID(input.ID)
	if err != nil {
		return nil, err
	}

	err = post.Edit(postTime, input.Kind, input.Nick, input.Text)
	if err != nil {
		return nil, err
	}

	go change.Submit("Post", "edit", token.UserID, post.ID, map[string]interface{}{
		"time": postTime,
		"kind": input.Kind,
		"nick": input.Nick,
		"text": input.Text,
	})

	go log.UpdateCharacters(post.LogID)

	return &types.PostResolver{P: post}, nil
}