//	train_booking_bookop.c -- 包含用戶票務(wù)操作函數(shù)
//
/////////////////////////////////////////////////////////////////////////////

#ifndef TRAIN_BOOKING_BOOKOP_C_
#define TRAIN_BOOKING_BOOKOP_C_

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>

#include "train_booking_declare.h"
#include "train_booking_const.h"
#include "train_booking_unit.h"

/////////////////////////////////////////////////////////////////////////////


/////////////////////////////////////////////////////////////////////////////
// 函數(shù)功能：	用戶軟臥票訂票事務(wù)處理
//
// 函數(shù)參數(shù)：	op_psngr_pt：操作用戶信息結(jié)構(gòu)體指針
//				system_info_pt：系統(tǒng)信息結(jié)構(gòu)體指針
//				train_info_pt：訂票列車信息結(jié)構(gòu)體指針
//
// 函數(shù)說明：	1、車次、時(shí)間信息輸入在此函數(shù)外完成，站點(diǎn)信息輸入在此函數(shù)內(nèi)完成
//				2、在使用此函數(shù)之前，應(yīng)已找到對(duì)應(yīng)列車及車次數(shù)據(jù)，本程序?qū)⒁来?//				搜索該列車的所有要求類型的車廂，直到找到座位
//
/////////////////////////////////////////////////////////////////////////////
status book_sb_ticket(passenger_info *op_psngr_pt, system_info *system_info_pt, 
		train_info *train_info_pt)
{
	booked_info *booked_info_head, *booked_info_pt;
	char t_begin_station[64], t_end_station[64];
	int t_begin_order, t_end_order, t_seat_order, t_distance;
	int booked_state = 0, car_amount = 0, this_cost;
	int ok_car_order, ok_seat_order;
	int booked_car_order;
	char ch;
	int i, j;

	CLS;
	actitle("預(yù)訂軟臥車票");

	// 取得訂票的起點(diǎn)
	printf("第一步：確定始發(fā)站（當(dāng)前站為 %s 站，回車直接確認(rèn)）\n",
		system_info_pt->location);

	if (!(get_str("始發(fā)站", t_begin_station, MIN_STATION_ID_LEN, MAX_STATION_ID_LEN)))
	{
		message(INFO, "將當(dāng)前站點(diǎn)設(shè)置為始發(fā)站！", NULL);
		printf("【信息】您輸入的始發(fā)站為 %s 站！\n", system_info_pt->location);
		WAIT;
	}

	// 取得訂票的終點(diǎn)
	printf("第二步：確定終點(diǎn)站\n");
	if (!(get_str("終點(diǎn)站", t_end_station, MIN_STATION_ID_LEN, MAX_STATION_ID_LEN)))
	{
		message(WARN, "預(yù)訂軟臥車票失??！", WC);

		return FAIL;
	}

	// 根據(jù)始、終點(diǎn)確定列車行程區(qū)間的開始、結(jié)束序號(hào)
	if (!(get_span_order(&train_info_pt->station_links, t_begin_station, t_end_station, 
		&t_begin_order, &t_end_order)))
	{
		message(WARN, "抱歉！訂票失敗！", WC);
		
		return FAIL;
	}

	message(INFO, "正在執(zhí)行訂票操作，請(qǐng)稍候...", NULL);
	
	// 依次檢測(cè)每個(gè)軟臥車廂是否還有空位
	for (i = 0; i < SOFT_BED_CAR; i++)
	{
		if (check_sbed_remained(&train_info_pt->sbed_info_list[i], t_begin_order, 
				t_end_order, &t_seat_order))	// 查找到合適的車廂號(hào)
		{
			ok_car_order = i;		
			printf("【信息】在第%d個(gè)軟臥車廂發(fā)現(xiàn)合適座位！", i + 1);
			printf("【信息】該車廂在列車內(nèi)編號(hào)為 %d ！\n", ok_car_order + 1);
			message(INFO, "恭喜恭喜", W);
		}
	}
	
	if (i == SOFT_BED_CAR - 1)		// 如果沒有找到合適的車廂
	{
		message(WARN, "抱歉！本趟列車已經(jīng)沒有你需要的票了。", NULL);
		message(TIP, "告訴你一個(gè)好消息，本車站提供系統(tǒng)通知功能。", NULL);
		message(TIP, "如果你選擇排隊(duì)等票，那么你的運(yùn)氣夠好的情況下，", NULL);
		message(TIP, "如果有人退了符合您的要求的票，系統(tǒng)將會(huì)以消息形", NULL);
		message(TIP, "式通知你，以便你能夠得以訂票。", NULL);
		message(TIP, "需要排隊(duì)，請(qǐng)按Ｙ鍵，按其他任意鍵返回。", W);

		ch = getch();

		if ('y' == ch)		// 如果用戶要求通知
		{
			// 如果排隊(duì)等候人滿則拒絕請(qǐng)求
			if (train_info_pt->total_waiters == MAX_NOTIFY_AMOUNT)
			{
				message(INFO, "實(shí)在不好意思，排隊(duì)的人太多了，您還是換訂另一趟車的票吧，謝謝合作！", NULL);
				message(WARN, "預(yù)訂軟臥車票失??！", WC);

				return FAIL;
			}
			else
			{
				// 登記本乘客至等候用戶列表
				strcpy(train_info_pt->waiter[train_info_pt->total_waiters], 
					op_psngr_pt->passenger_id);
				train_info_pt->total_waiters++;

				// 將候票操作保存至文件
				if (!(save_train_info(train_info_pt, train_info_pt->master)))
				{
					message(ERROR, "排隊(duì)時(shí)更新文件失敗！", NULL);
					message(WARN, "未能成功排隊(duì)候票！", W);
				}
			}
		}
		else
		{
			message(INFO, "您已放棄訂票操作！", WC);
			
			return FAIL;
		}
	}

confirm_check:
	{
		booked_car_order = ok_car_order + 1;	// 生成面向用戶的車廂號(hào)
		// 確認(rèn)乘客的訂票行為
		printf("【提示】將要預(yù)訂 %s 次列車的 %s 第趟列車的第 %d 號(hào)（軟臥）車廂的第 %d 號(hào)座位，您確認(rèn)嗎（Ｙ／Ｎ）？", train_info_pt->master, train_info_pt->time_id,
			booked_car_order, t_seat_order);
		ch == get_choice("yn");
		if ('n' == ch)
		{
			message(INFO, "您已放棄訂票操作！", WC);

			return FAIL;
		}
		else if ('y' != ch)
		{
			goto confirm_check;
		}
		else
		{
			get_distance(&t_distance, &train_info_pt->station_links, 
				t_begin_order, t_end_order);		//計(jì)算路程
			pay_bill(&this_cost, system_info_pt->price_sbed_per_km, t_distance);
				// 取得票價(jià) this_cost
		}
	}

	// 查找用戶是否已在該趟車上訂過票
	booked_info_head = &op_psngr_pt->booked_links;
	while (booked_info_head->next)
	{
		booked_info_pt = booked_info_head->next;
		car_amount++;		// 可直接用作 offset值

		// 如果用戶曾在此趟車上訂過票
		if ((!(strcmp(train_info_pt->master, booked_info_pt->booked_train_sq_id))) &&
			(!(strcmp(train_info_pt->time_id, booked_info_pt->booked_train_time_id))))
		{
			booked_state = 1;
		}
	}

	if (booked_state)		// 如果用戶曾在此趟車上訂過票
	{
		for (i = 0; i < MAX_BOOK_PER_PSNGR; i++)	// 查找是否還未達(dá)到訂票的最大數(shù)目
		{
			if (!booked_info_pt->soft_bed_sq[ok_car_order][i])
			{
				booked_info_pt->soft_bed_sq[ok_car_order][i] = t_seat_order;
			}
		}
		
		if (MAX_BOOK_PER_PSNGR == i)		// 已達(dá)到訂票的最大數(shù)目
		{
			message(ERROR, "您單獨(dú)在這趟車上訂票數(shù)已達(dá)到最大數(shù)目，不能再訂了！", WC);

			return FAIL;
		}

		strcpy(booked_info_pt->soft_bed_st[booked_info_pt->soft_bed], t_begin_station);
		strcat(booked_info_pt->soft_bed_st[booked_info_pt->soft_bed], "#");
		strcat(booked_info_pt->soft_bed_st[booked_info_pt->soft_bed], t_end_station);
		booked_info_pt->soft_bed++;
		save_booked_info(booked_info_pt, op_psngr_pt->passenger_id);
	}
	else					// 如果用戶沒有在此趟車上訂過票
	{
		if (!(booked_info_pt = (booked_info *)malloc(sizeof(booked_info))))
		{
			message(ERROR, "用戶訂票創(chuàng)建訂票信息時(shí)申請(qǐng)內(nèi)存失敗！", NULL);
			message(WARN, "預(yù)訂軟臥車票失?。?quot;, WC);

			return FAIL;
		}

		// 創(chuàng)建新的列車-用戶訂票信息
		strcpy(booked_info_pt->booked_train_sq_id, train_info_pt->master);
		strcpy(booked_info_pt->booked_train_time_id, train_info_pt->time_id);

		for (i = 0; i < SOFT_BED_CAR; i++)	// 軟臥訂票歷史記錄清零
		{
			for (j = 0; j < SOFT_BED_CAR; j++)
			{
				booked_info_pt->soft_bed_sq[i][j] = 0;
			}
		}
		for (i = 0; i < HARD_BED_CAR; i++)	// 硬臥訂票歷史記錄清零
		{
			for (j = 0; j < MAX_BOOK_PER_PSNGR; j++)
			{
				booked_info_pt->soft_bed_sq[i][j] = 0;
			}
		}
		for (i = 0; i < HARD_SEAT_CAR; i++)	// 硬座訂票歷史記錄清零
		{
			for (j = 0; j < MAX_BOOK_PER_PSNGR; j++)
			{
				booked_info_pt->soft_bed_sq[i][j] = 0;
			}
		}

		booked_info_pt->hard_bed = 0;
		booked_info_pt->hard_seat = 0;
		strcpy(booked_info_pt->master, op_psngr_pt->passenger_id);
		booked_info_pt->offset = car_amount;		// 見前文
		booked_info_pt->soft_bed = 0;
		booked_info_pt->soft_bed_sq[ok_car_order][booked_info_pt->soft_bed] = t_seat_order;
		booked_info_pt->next = NULL;
		strcpy(booked_info_pt->soft_bed_st[booked_info_pt->soft_bed], t_begin_station);
		strcat(booked_info_pt->soft_bed_st[booked_info_pt->soft_bed], "#");
		strcat(booked_info_pt->soft_bed_st[booked_info_pt->soft_bed], t_end_station);
		booked_info_pt->soft_bed++;

		// 即時(shí)更新系統(tǒng)信息并保存在文件
		booked_info_head->next = booked_info_pt;
		if (!(save_booked_info(booked_info_pt, op_psngr_pt->passenger_id)))
		{
			message(ERROR, "執(zhí)行乘客訂票操作時(shí)更新文件失??！", NULL);
			message(WARN, "預(yù)訂軟臥車票失??！", WC);