package main

import (
	"context"
	_ "embed"
	"io"
	"text/template"
	"time"
)

//go:embed report.tmpl
var reportTMPL string

func ReportSince(ctx context.Context, w io.Writer, s Storage, t time.Time) error {
	tmpl, err := template.New("report").Parse(reportTMPL)
	if err != nil {
		return err
	}

	messages, err := s.MessagesSince(ctx, t)
	if err != nil {
		return err
	}

	threads, err := s.ThreadsSince(ctx, t)
	if err != nil {
		return err
	}

	eventNames, err := s.EventNamesSince(ctx, t)
	if err != nil {
		return err
	}

	events, err := s.EventsSince(ctx, t)
	if err != nil {
		return err
	}

	return tmpl.Execute(w, map[string]any{
		"since":      t.Format("2006-01-02"),
		"messages":   messages,
		"threads":    threads,
		"events":     events,
		"eventNames": eventNames,
	})
}