package cli

import (
	"encoding/json"
	"fmt"
	"net/url"
	"strconv"

	"github.com/spf13/cobra"

	"gitea.mynodes.xyz/ilker/llmgw/internal/store"
)

func newAuditCmd(client func() *ctlClient, asJSON *bool) *cobra.Command {
	var (
		since, actor, contains string
		limit                  int
		detail                 bool
	)
	c := &cobra.Command{
		Use:   "audit",
		Short: "Who changed what: every change through the admin API and the administration pages",
		Long: "Each change made with `llmgw ctl`, the console, or the pages under /admin —\n" +
			"and a person's own keys and password — is recorded: who, when, through\n" +
			"what, the fields it was given with anything secret taken out, and how it\n" +
			"ended. The newest first.",
		Example: "  llmgw ctl audit --since 24h\n  llmgw ctl audit --actor ilker --contains models\n  llmgw ctl audit --contains bob@example.com --detail",
		Args:    cobra.NoArgs,
		RunE: func(cmd *cobra.Command, _ []string) error {
			q := url.Values{"since": {since}, "limit": {strconv.Itoa(limit)}}
			if actor != "" {
				q.Set("actor", actor)
			}
			if contains != "" {
				q.Set("contains", contains)
			}
			var ev []store.AuditEvent
			if err := client().get(cmd.Context(), "/api/v1/audit?"+q.Encode(), &ev); err != nil {
				return err
			}
			if *asJSON {
				return json.NewEncoder(cmd.OutOrStdout()).Encode(ev)
			}
			if len(ev) == 0 {
				fmt.Fprintln(cmd.OutOrStdout(), "No changes recorded in that time.")
				return nil
			}
			w := tab()
			fmt.Fprintln(w, "WHEN (UTC)\tWHO\tVIA\tWHAT\tTARGET\tSTATUS")
			for _, e := range ev {
				fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%d\n", e.At.UTC().Format("2006-01-02 15:04:05"),
					e.Actor, e.Source, e.Action, dash(e.Target), e.Status)
				if detail && e.Detail != "" && e.Detail != "{}" {
					fmt.Fprintf(w, "\t\t\t  %s\t\t\n", e.Detail)
				}
			}
			return w.Flush()
		},
	}
	f := c.Flags()
	f.StringVar(&since, "since", "7d", "how far back: 90m, 24h, 30d")
	f.StringVar(&actor, "actor", "", "only changes by this person")
	f.StringVar(&contains, "contains", "", "only changes whose action or target contains this")
	f.IntVar(&limit, "limit", 200, "at most this many")
	f.BoolVar(&detail, "detail", false, "show the fields each change was given")
	return c
}