package resolvers

import (
	"context"
	"errors"

	"git.aiterp.net/rpdata/api/graph2/graphcore"
	"git.aiterp.net/rpdata/api/internal/auth"
	"git.aiterp.net/rpdata/api/models"
	"git.aiterp.net/rpdata/api/models/changekeys"
	"git.aiterp.net/rpdata/api/models/changes"
	"git.aiterp.net/rpdata/api/models/channels"
)

// Queries

func (r *queryResolver) Channel(ctx context.Context, name string) (*models.Channel, error) {
	channel, err := channels.FindName(name)
	if err != nil {
		return nil, err
	}

	return &channel, nil
}

func (r *queryResolver) Channels(ctx context.Context, filter *channels.Filter) ([]*models.Channel, error) {
	channels, err := channels.List(filter)
	if err != nil {
		return nil, err
	}

	channels2 := make([]*models.Channel, len(channels))
	for i := range channels {
		channels2[i] = &channels[i]
	}

	return channels2, nil
}

// Mutations

func (r *mutationResolver) AddChannel(ctx context.Context, input graphcore.ChannelAddInput) (*models.Channel, error) {
	token := auth.TokenFromContext(ctx)
	if !token.Authenticated() || !token.Permitted("channel.add") {
		return nil, errors.New("You are not permitted to add channels")
	}

	logged := false
	if input.Logged != nil {
		logged = *input.Logged
	}
	hub := false
	if input.Hub != nil {
		hub = *input.Hub
	}
	eventName := ""
	if input.EventName != nil {
		eventName = *input.EventName
	}
	locationName := ""
	if input.LocationName != nil {
		locationName = *input.LocationName
	}

	channel, err := channels.Add(input.Name, logged, hub, eventName, locationName)
	if err != nil {
		return nil, errors.New("Failed to add channel: " + err.Error())
	}

	go changes.Submit("Channel", "add", token.UserID, true, changekeys.Listed(channel), channel)

	return &channel, nil
}

func (r *mutationResolver) EditChannel(ctx context.Context, input graphcore.ChannelEditInput) (*models.Channel, error) {
	token := auth.TokenFromContext(ctx)
	if !token.Authenticated() || !token.Permitted("channel.edit") {
		return nil, errors.New("You are not permitted to edit channels")
	}

	channel, err := channels.FindName(input.Name)
	if err != nil {
		return nil, errors.New("Channel not found")
	}

	channel, err = channels.Edit(channel, input.Logged, input.Hub, input.EventName, input.LocationName)
	if err != nil {
		return nil, errors.New("Failed to edit channel: " + err.Error())
	}

	go changes.Submit("Channel", "edit", token.UserID, true, changekeys.Listed(channel), channel)

	return &channel, nil
}