/*
 * db.h - Parts database
 *
 * Copyright 2012 by Werner Almesberger
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */


#ifndef DB_H
#define	DB_H

struct exchange {
	const struct currency *dst;
	double factor;
	struct exchange *next;
};

struct currency {
	const char *name;
	struct exchange *exchange;
	struct currency *next;
};

struct price {
	int qty;	/* order quantity */
	double value;	/* per quantity cost */
	const struct currency *curr;
	int fract;	/* 0 if > qty at same price; 1 if multiples of qty */
	struct price *next; /* next lower qty */
};

struct provider {
	const char *name;
	double shipping; /* S&H cost */
	double minimum;	/* minimum order */
	const struct currency *curr;
	struct provider *next;
};

struct stock {
	int avail;	/* items in stock */
	int package;	/* "natural" quantity (reel, tray, bag, etc.) */
	struct price *manual; /* single parts, for manual assembly only */
	double reeling;	/* cost of converting "manual" to "fab"; <0 if n/a */
	struct price *fab; /* for automated assembly */
} stock;

struct part {
	const char *domain;
	const char *name;
	struct param *param;	/* NULL if @@@ */
	struct stock *stock;	/* NULL if vendor part */
	struct part *next;	/* alias loop (cyclic) */
	struct part *prev;
};


struct part *part_lookup(const char *domain, const char *name);
struct part *part_add(const char *domain, const char *name);
void part_alias(struct part *a, struct part *b);
void part_finalize(struct part *part, const struct field *field);

#endif /* !DB_H */