mesh-catalog/modules/artifact-store-tools/cmd/artifact-store-tools/seat.go

package main

// The seat mesh-artifact-sweep's verbs (novox/hq ADR 0571 clause 2; sweep.Seat), each a tool named
// `artifact-store.<verb>` as the runtime serves a seat's verb, answering as the controller's verb answered: {output,
// ok, answer}.

import (
	"fmt"
	"strings"

	sweep "git.novox.be/novox/mesh-delivery/contracts/go/seats/meshartifactsweep"
	stdio "git.novox.be/novox/mesh-sdk/go"
)

// verbAnswer is the controller's verbs' answer shape, which the builder and docker read (answerOf).
type verbAnswer struct {
	Output string `json:"output"`
	OK     bool   `json:"ok"`
	Answer any    `json:"answer"`
}

// SeatTools are the seat's verbs over h; s reads the store's listing for mirrors.
func SeatTools(h *Holder, s *Store) []stdio.Tool {
	seat := sweep.Seat + "."
	return []stdio.Tool{
		{Name: seat + "artifacts", Description: "Every artifact the mesh made that the store holds: kept and why, eligible, " +
			"or with collected those it no longer holds.",
			Run: func(args map[string]any) (any, error) {
				r, err := h.Artifacts(text(args, "repository"))
				if err != nil {
					return nil, err
				}
				if text(args, "collected") != "true" {
					refs := r.References[:0:0]
					for _, x := range r.References {
						if x.State != "collected" {
							refs = append(refs, x)
						}
					}
					r.References = refs
				}
				return verbAnswer{Output: fmt.Sprintf("%d kept, %d eligible, %d collected\n", r.Counts["kept"],
					r.Counts["eligible"], r.Counts["collected"]), OK: true, Answer: r}, nil
			}},
		{Name: seat + "held", Description: "Whether the store holds each reference given: held, gone or unknown with why.",
			Run: func(args map[string]any) (any, error) {
				a, err := h.Held(listOf(args["references"]))
				if err != nil {
					return nil, err
				}
				return verbAnswer{Output: fmt.Sprintf("the artifact store at %s holds %d of the %d reference(s) asked\n",
					a.Store, len(a.Held), len(a.Held)+len(a.Gone)+len(a.Unknown)), OK: true, Answer: a}, nil
			}},
		{Name: seat + "collect", Description: "The sweep now: a dry run without confirm; with confirm and why, every kept " +
			"archive held, then each eligible artifact let go of, each recorded in the hand-act log.",
			Run: func(args map[string]any) (any, error) {
				most, err := count(args, "most", MostPerSweep, 1, MostAtAll)
				if err != nil {
					return nil, err
				}
				a, err := h.Collect(text(args, "why"), text(args, "confirm") == "true", most)
				if err != nil {
					return nil, err
				}
				return verbAnswer{Output: fmt.Sprintf("let go of %d, would let go of %d, %d left\n", len(a.LetGo),
					len(a.WouldLetGo), a.Left), OK: true, Answer: a}, nil
			}},
		{Name: seat + "mirrors", Description: "The bases the mesh copied into its store, each kept (a kept build stood on " +
			"it), eligible (only builds no longer kept stood on it) or unrecorded (no build the builder's log holds stood " +
			"on it: never removed).",
			Run: func(args map[string]any) (any, error) {
				if text(args, "record") != "" {
					return nil, fmt.Errorf("mirrors records nothing by hand on this seat: a copy is recorded by the builds the " +
						"builder's log says stood on it (novox/hq ADR 0571 clause 1)")
				}
				m, err := h.MirrorsNow()
				if err != nil {
					return nil, err
				}
				return verbAnswer{Output: fmt.Sprintf("%d copies\n", len(m.Copies)), OK: true, Answer: m}, nil
			}},
		{Name: seat + "images", Description: "Every container image one machine's wants and haves name.",
			Run: func(args map[string]any) (any, error) {
				node := text(args, "node")
				if node == "" {
					return nil, fmt.Errorf("images names the machine")
				}
				address := ""
				if d, err := h.Door(); err == nil {
					address = d.Address()
				}
				a, err := h.ImagesOf(node, address)
				if err != nil {
					return nil, err
				}
				return verbAnswer{Output: fmt.Sprintf("%s: %d images\n", node, len(a.Images)), OK: true, Answer: a}, nil
			}},
	}
}

// listOf is a list argument: a list, or one text separated by commas.
func listOf(v any) []string {
	var out []string
	add := func(s string) {
		for _, p := range strings.Split(s, ",") {
			if p = strings.TrimSpace(p); p != "" && !contains(out, p) {
				out = append(out, p)
			}
		}
	}
	switch x := v.(type) {
	case string:
		add(x)
	case []any:
		for _, e := range x {
			if s, ok := e.(string); ok {
				add(s)
			}
		}
	}
	return out
}