package changes

import (
	"context"
	"encoding/json"
	"time"

	"git.aiterp.net/rpdata/logbot3/internal/api"
	"git.aiterp.net/rpdata/logbot3/internal/models"
)

// The Filter for List.
type Filter struct {
	Keys         []models.ChangeKey `json:"keys,omitempty"`
	EarliestDate *time.Time         `json:"earliestDate,omitempty"`
	Limit        int                `json:"limit,omitempty"`
}

// List lists all changes according to the filter.
func List(ctx context.Context, filter *Filter) ([]models.Change, error) {
	data, err := api.Global().Query(ctx, listGQL, map[string]interface{}{"filter": filter}, nil)
	if err != nil {
		return nil, err
	}

	res := listResult{}
	err = json.Unmarshal(data, &res)

	return res.Changes, err
}

type listResult struct {
	Changes []models.Change `json:"changes"`
}

var listGQL = `
	query ListChanges($filter:ChangesFilter) {
		changes(filter:$filter) {
			id
			model
			op
			author
			listed
			date
			keys {
				model
				id
			}
			objects {
				__typename
				...on Channel {
					name
					logged
					hub
					eventName
					locationName
				}
			}
		}
	}
`