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path: root/worker/jmap/directories.go
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package jmap

import (
	"fmt"
	"path"

	"git.sr.ht/~rjarry/aerc/worker/types"
	"git.sr.ht/~rockorager/go-jmap"
	"git.sr.ht/~rockorager/go-jmap/mail/email"
	"git.sr.ht/~rockorager/go-jmap/mail/mailbox"
)

func (w *JMAPWorker) handleOpenDirectory(msg *types.OpenDirectory) error {
	id, ok := w.dir2mbox[msg.Directory]
	if !ok {
		return fmt.Errorf("unknown directory: %s", msg.Directory)
	}
	w.selectedMbox = id
	return nil
}

func (w *JMAPWorker) handleFetchDirectoryContents(msg *types.FetchDirectoryContents) error {
	var req jmap.Request

	selected, ok := w.mboxes[w.selectedMbox]
	if !ok {
		return fmt.Errorf("no selected mailbox")
	}

	filter, err := parseSearch(msg.FilterCriteria)
	if err != nil {
		return err
	}
	filter.InMailbox = w.selectedMbox

	selected.filter = filter
	selected.sort = translateSort(msg.SortCriteria)

	req.Invoke(&email.Query{
		Account: w.accountId(),
		Filter:  filter,
		Sort:    selected.sort,
	})

	resp, err := w.client.Do(&req)
	if err != nil {
		return err
	}

	for _, inv := range resp.Responses {
		switch r := inv.Args.(type) {
		case *email.QueryResponse:
			var uids []uint32
			for _, id := range r.IDs {
				uids = append(uids, w.uidStore.GetOrInsert(string(id)))
			}
			w.w.PostMessage(&types.DirectoryContents{
				Message: types.RespondTo(msg),
				Uids:    uids,
			}, nil)
			selected.uids = uids
			selected.queryState = r.QueryState
		}
	}

	return nil
}

func (w *JMAPWorker) handleSearchDirectory(msg *types.SearchDirectory) error {
	var req jmap.Request

	filter, err := parseSearch(msg.Argv)
	if err != nil {
		return err
	}
	filter.InMailbox = w.selectedMbox

	req.Invoke(&email.Query{
		Account: w.accountId(),
		Filter:  filter,
	})

	resp, err := w.client.Do(&req)
	if err != nil {
		return err
	}

	for _, inv := range resp.Responses {
		switch r := inv.Args.(type) {
		case *email.QueryResponse:
			var uids []uint32
			for _, id := range r.IDs {
				uids = append(uids, w.uidStore.GetOrInsert(string(id)))
			}
			w.w.PostMessage(&types.SearchResults{
				Message: types.RespondTo(msg),
				Uids:    uids,
			}, nil)
		}
	}

	return nil
}

func (w *JMAPWorker) handleCreateDirectory(msg *types.CreateDirectory) error {
	var req jmap.Request
	var parentId, id jmap.ID

	if parent := path.Dir(msg.Directory); parent != "" && parent != "." {
		var ok bool
		if parentId, ok = w.dir2mbox[parent]; !ok {
			return fmt.Errorf(
				"parent mailbox %q does not exist", parent)
		}
	}
	name := path.Base(msg.Directory)

	req.Invoke(&mailbox.Set{
		Account: w.accountId(),
		Create: map[jmap.ID]*mailbox.Mailbox{
			id: {
				ID:       id,
				ParentID: parentId,
				Name:     name,
			},
		},
	})

	resp, err := w.client.Do(&req)
	if err != nil {
		return err
	}
	if msg.Quiet {
		return nil
	}
	for _, inv := range resp.Responses {
		switch r := inv.Args.(type) {
		case *mailbox.SetResponse:
			if err, _ := r.NotCreated[id]; err != nil {
				var s string
				if err.Description != nil {
					s = *err.Description
				}
				return fmt.Errorf(
					"mailbox creation failed: %s", s)
			}
		}
	}

	return nil
}

func (w *JMAPWorker) handleRemoveDirectory(msg *types.RemoveDirectory) error {
	var req jmap.Request

	id, ok := w.dir2mbox[msg.Directory]
	if !ok {
		return fmt.Errorf("unknown mailbox: %s", msg.Directory)
	}

	req.Invoke(&mailbox.Set{
		Account:               w.accountId(),
		Destroy:               []jmap.ID{id},
		OnDestroyRemoveEmails: msg.Quiet,
	})

	resp, err := w.client.Do(&req)
	if err != nil {
		return err
	}
	for _, inv := range resp.Responses {
		switch r := inv.Args.(type) {
		case *mailbox.SetResponse:
			if err, _ := r.NotDestroyed[id]; err != nil {
				var s string
				if err.Description != nil {
					s = *err.Description
				}
				return fmt.Errorf(
					"mailbox destruction failed: %s", s)
			}
		}
	}

	return nil
}

func translateSort(criteria []*types.SortCriterion) []*email.SortComparator {
	sort := make([]*email.SortComparator, 0, len(criteria))
	if len(criteria) == 0 {
		criteria = []*types.SortCriterion{
			{Field: types.SortArrival, Reverse: true},
			{Field: types.SortSubject, Reverse: false},
		}
	}
	for _, s := range criteria {
		var cmp email.SortComparator
		switch s.Field {
		case types.SortArrival:
			cmp.Property = "receivedAt"
		case types.SortCc:
			cmp.Property = "cc"
		case types.SortDate:
			cmp.Property = "receivedAt"
		case types.SortFrom:
			cmp.Property = "from"
		case types.SortRead:
			cmp.Keyword = "$seen"
		case types.SortSize:
			cmp.Property = "size"
		case types.SortSubject:
			cmp.Property = "subject"
		case types.SortTo:
			cmp.Property = "to"
		default:
			continue
		}
		cmp.IsAscending = !s.Reverse
		sort = append(sort, &cmp)
	}

	return sort
}