package notes

import (
	"fmt"
	"strings"
	"time"
)

type AppBskyFeedPostNote struct {
	URI          string
	AuthorDID    string
	AuthorHandle string
	Text         string
	CreatedAt    time.Time
	ReplyTo      *string
}

type AppBskyFeedPostRecord struct {
	URI   string `json:"uri"`
	Value struct {
		Text      string `json:"text"`
		CreatedAt string `json:"createdAt"`
		Reply     *struct {
			Parent struct {
				URI string `json:"uri"`
			} `json:"parent"`
		} `json:"reply,omitempty"`
	} `json:"value"`
}

func (bp *AppBskyFeedPostNote) GetID() string {
	return bp.URI
}

func (bp *AppBskyFeedPostNote) GetAuthorDID() string {
	return bp.AuthorDID
}

func (bp *AppBskyFeedPostNote) GetAuthorHandle() string {
	return bp.AuthorHandle
}

func (bp *AppBskyFeedPostNote) GetTimestamp() time.Time {
	return bp.CreatedAt
}

func (bp *AppBskyFeedPostNote) GetReplyTo() *string {
	return bp.ReplyTo
}

func AppBskyFeedPostFromRecord(record AppBskyFeedPostRecord) (*AppBskyFeedPostNote, error) {
	createdAt, err := time.Parse(time.RFC3339, record.Value.CreatedAt)
	if err != nil {
		return nil, fmt.Errorf("failed to parse timestamp: %w", err)
	}
	if record.Value.Text == "" {
		return nil, fmt.Errorf("missing required field: text")
	}
	if record.URI == "" {
		return nil, fmt.Errorf("missing required field: uri")
	}

	parts := strings.Split(record.URI, "/") // at://DID/collection/rkey
	did := parts[2]

	return &AppBskyFeedPostNote{
		URI:          record.URI,
		AuthorDID:    did,
		AuthorHandle: "author_handle", // wip
		CreatedAt:    createdAt,
		Text:         record.Value.Text,
		ReplyTo:      &record.Value.Reply.Parent.URI,
	}, nil
}