package db

import (
	"context"
	"errors"

	"git.kapelle.org/niklas/s3share/internal/types"
)

type mockDB struct {
	shares map[string]*types.Share
}

func NewMock() DB {
	return &mockDB{
		shares: make(map[string]*types.Share),
	}
}

func (d *mockDB) Close() error {
	return nil
}

func (d *mockDB) CreateShare(ctx context.Context, share *types.Share) error {
	if d.shares[share.Slug] != nil {
		return errors.New("share already exists")
	}
	d.shares[share.Slug] = share
	return nil
}

func (d *mockDB) DeleteShare(ctx context.Context, slug string) error {
	if d.shares[slug] == nil {
		return types.ErrShareNotFound
	}
	delete(d.shares, slug)
	return nil
}

func (d *mockDB) GetAllShares(ctx context.Context) ([]*types.Share, error) {
	// convert map to slice
	shares := make([]*types.Share, 0, len(d.shares))
	for _, share := range d.shares {
		shares = append(shares, share)
	}
	return shares, nil
}

func (d *mockDB) GetShare(ctx context.Context, slug string) (*types.Share, error) {
	if d.shares[slug] == nil {
		return nil, nil
	}
	return d.shares[slug], nil
}