eq2go/internal/items/database.go

472 lines
13 KiB
Go

package items
import (
"database/sql"
"fmt"
"log"
"strconv"
"strings"
"sync/atomic"
"time"
)
// ItemDatabase handles all database operations for items
type ItemDatabase struct {
db *sql.DB
queries map[string]*sql.Stmt
loadedItems map[int32]bool
}
// NewItemDatabase creates a new item database manager
func NewItemDatabase(db *sql.DB) *ItemDatabase {
idb := &ItemDatabase{
db: db,
queries: make(map[string]*sql.Stmt),
loadedItems: make(map[int32]bool),
}
// Prepare commonly used queries
idb.prepareQueries()
return idb
}
// prepareQueries prepares all commonly used SQL queries
func (idb *ItemDatabase) prepareQueries() {
queries := map[string]string{
"load_items": `
SELECT id, soe_id, name, description, icon, icon2, icon_heroic_op, icon_heroic_op2, icon_id,
icon_backdrop, icon_border, icon_tint_red, icon_tint_green, icon_tint_blue, tier,
level, success_sellback, stack_size, generic_info_show_name,
generic_info_item_flags, generic_info_item_flags2, generic_info_creator_flag,
generic_info_condition, generic_info_weight, generic_info_skill_req1,
generic_info_skill_req2, generic_info_skill_min_level, generic_info_item_type,
generic_info_appearance_id, generic_info_appearance_red, generic_info_appearance_green,
generic_info_appearance_blue, generic_info_appearance_highlight_red,
generic_info_appearance_highlight_green, generic_info_appearance_highlight_blue,
generic_info_collectable, generic_info_offers_quest_id, generic_info_part_of_quest_id,
generic_info_max_charges, generic_info_adventure_classes, generic_info_tradeskill_classes,
generic_info_adventure_default_level, generic_info_tradeskill_default_level,
generic_info_usable, generic_info_harvest, generic_info_body_drop,
generic_info_pvp_description, generic_info_merc_only, generic_info_mount_only,
generic_info_set_id, generic_info_collectable_unk, generic_info_transmuted_material,
broker_price, sell_price, max_sell_value, created, script_name, lua_script
FROM items
`,
"load_item_stats": `
SELECT item_id, stat_type, stat_subtype, value, stat_name, level
FROM item_mod_stats
WHERE item_id = ?
`,
"load_item_effects": `
SELECT item_id, effect, percentage, subbulletflag
FROM item_effects
WHERE item_id = ?
`,
"load_item_appearances": `
SELECT item_id, type, red, green, blue, highlight_red, highlight_green, highlight_blue
FROM item_appearances
WHERE item_id = ?
`,
"load_item_level_overrides": `
SELECT item_id, adventure_class, tradeskill_class, level
FROM item_levels_override
WHERE item_id = ?
`,
"load_item_mod_strings": `
SELECT item_id, stat_string
FROM item_mod_strings
WHERE item_id = ?
`,
"load_character_items": `
SELECT item_id, unique_id, inv_slot_id, slot_id, appearance_type, icon, icon2,
count, tier, bag_id, details_count, creator, adornment_slot0, adornment_slot1,
adornment_slot2, group_id, creator_app, random_seed
FROM character_items
WHERE char_id = ?
`,
"save_character_item": `
INSERT OR REPLACE INTO character_items
(char_id, item_id, unique_id, inv_slot_id, slot_id, appearance_type, icon, icon2,
count, tier, bag_id, details_count, creator, adornment_slot0, adornment_slot1,
adornment_slot2, group_id, creator_app, random_seed, created)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
`,
"delete_character_item": `
DELETE FROM character_items WHERE char_id = ? AND unique_id = ?
`,
"delete_character_items": `
DELETE FROM character_items WHERE char_id = ?
`,
}
for name, query := range queries {
if stmt, err := idb.db.Prepare(query); err != nil {
log.Printf("Failed to prepare query %s: %v", name, err)
} else {
idb.queries[name] = stmt
}
}
}
// LoadItems loads all items from the database into the master item list
func (idb *ItemDatabase) LoadItems(masterList *MasterItemList) error {
log.Printf("Loading items from database...")
stmt := idb.queries["load_items"]
if stmt == nil {
return fmt.Errorf("load_items query not prepared")
}
rows, err := stmt.Query()
if err != nil {
return fmt.Errorf("failed to query items: %v", err)
}
defer rows.Close()
itemCount := 0
for rows.Next() {
item, err := idb.scanItemFromRow(rows)
if err != nil {
log.Printf("Error scanning item from row: %v", err)
continue
}
// Load additional item data
if err := idb.loadItemDetails(item); err != nil {
log.Printf("Error loading details for item %d: %v", item.Details.ItemID, err)
continue
}
masterList.AddItem(item)
idb.loadedItems[item.Details.ItemID] = true
itemCount++
}
if err = rows.Err(); err != nil {
return fmt.Errorf("error iterating item rows: %v", err)
}
log.Printf("Loaded %d items from database", itemCount)
return nil
}
// scanItemFromRow scans a database row into an Item struct
func (idb *ItemDatabase) scanItemFromRow(rows *sql.Rows) (*Item, error) {
item := &Item{}
item.ItemStats = make([]*ItemStat, 0)
item.ItemEffects = make([]*ItemEffect, 0)
item.ItemStringStats = make([]*ItemStatString, 0)
item.ItemLevelOverrides = make([]*ItemLevelOverride, 0)
item.SlotData = make([]int8, 0)
var createdStr string
var scriptName, luaScript sql.NullString
err := rows.Scan(
&item.Details.ItemID,
&item.Details.SOEId,
&item.Name,
&item.Description,
&item.Details.Icon,
&item.Details.ClassicIcon,
&item.GenericInfo.AppearanceID, // icon_heroic_op
&item.GenericInfo.AppearanceID, // icon_heroic_op2 (duplicate)
&item.GenericInfo.AppearanceID, // icon_id
&item.GenericInfo.AppearanceID, // icon_backdrop
&item.GenericInfo.AppearanceID, // icon_border
&item.GenericInfo.AppearanceRed, // icon_tint_red
&item.GenericInfo.AppearanceGreen, // icon_tint_green
&item.GenericInfo.AppearanceBlue, // icon_tint_blue
&item.Details.Tier,
&item.Details.RecommendedLevel,
&item.SellPrice, // success_sellback
&item.StackCount,
&item.GenericInfo.ShowName,
&item.GenericInfo.ItemFlags,
&item.GenericInfo.ItemFlags2,
&item.GenericInfo.CreatorFlag,
&item.GenericInfo.Condition,
&item.GenericInfo.Weight,
&item.GenericInfo.SkillReq1,
&item.GenericInfo.SkillReq2,
&item.GenericInfo.SkillMin,
&item.GenericInfo.ItemType,
&item.GenericInfo.AppearanceID,
&item.GenericInfo.AppearanceRed,
&item.GenericInfo.AppearanceGreen,
&item.GenericInfo.AppearanceBlue,
&item.GenericInfo.AppearanceHighlightRed,
&item.GenericInfo.AppearanceHighlightGreen,
&item.GenericInfo.AppearanceHighlightBlue,
&item.GenericInfo.Collectable,
&item.GenericInfo.OffersQuestID,
&item.GenericInfo.PartOfQuestID,
&item.GenericInfo.MaxCharges,
&item.GenericInfo.AdventureClasses,
&item.GenericInfo.TradeskillClasses,
&item.GenericInfo.AdventureDefaultLevel,
&item.GenericInfo.TradeskillDefaultLevel,
&item.GenericInfo.Usable,
&item.GenericInfo.Harvest,
&item.GenericInfo.BodyDrop,
&item.GenericInfo.PvPDescription,
&item.GenericInfo.MercOnly,
&item.GenericInfo.MountOnly,
&item.GenericInfo.SetID,
&item.GenericInfo.CollectableUnk,
&item.GenericInfo.TransmutedMaterial,
&item.BrokerPrice,
&item.SellPrice,
&item.MaxSellValue,
&createdStr,
&scriptName,
&luaScript,
)
if err != nil {
return nil, fmt.Errorf("failed to scan item row: %v", err)
}
// Set lowercase name for searching
item.LowerName = strings.ToLower(item.Name)
// Parse created timestamp
if createdStr != "" {
if created, err := time.Parse("2006-01-02 15:04:05", createdStr); err == nil {
item.Created = created
}
}
// Set script names
if scriptName.Valid {
item.ItemScript = scriptName.String
}
if luaScript.Valid {
item.ItemScript = luaScript.String // Lua script takes precedence
}
// Generate unique ID
item.Details.UniqueID = NextUniqueItemID()
return item, nil
}
// loadItemDetails loads all additional details for an item
func (idb *ItemDatabase) loadItemDetails(item *Item) error {
// Load item stats
if err := idb.loadItemStats(item); err != nil {
return fmt.Errorf("failed to load stats: %v", err)
}
// Load item effects
if err := idb.loadItemEffects(item); err != nil {
return fmt.Errorf("failed to load effects: %v", err)
}
// Load item appearances
if err := idb.loadItemAppearances(item); err != nil {
return fmt.Errorf("failed to load appearances: %v", err)
}
// Load level overrides
if err := idb.loadItemLevelOverrides(item); err != nil {
return fmt.Errorf("failed to load level overrides: %v", err)
}
// Load modifier strings
if err := idb.loadItemModStrings(item); err != nil {
return fmt.Errorf("failed to load mod strings: %v", err)
}
// Load type-specific details
if err := idb.loadItemTypeDetails(item); err != nil {
return fmt.Errorf("failed to load type details: %v", err)
}
return nil
}
// loadItemStats loads item stat modifications
func (idb *ItemDatabase) loadItemStats(item *Item) error {
stmt := idb.queries["load_item_stats"]
if stmt == nil {
return fmt.Errorf("load_item_stats query not prepared")
}
rows, err := stmt.Query(item.Details.ItemID)
if err != nil {
return err
}
defer rows.Close()
for rows.Next() {
var stat ItemStat
var itemID int32
var statName sql.NullString
err := rows.Scan(&itemID, &stat.StatType, &stat.StatSubtype, &stat.Value, &statName, &stat.Level)
if err != nil {
return err
}
if statName.Valid {
stat.StatName = statName.String
}
item.ItemStats = append(item.ItemStats, &stat)
}
return rows.Err()
}
// loadItemEffects loads item effects and descriptions
func (idb *ItemDatabase) loadItemEffects(item *Item) error {
stmt := idb.queries["load_item_effects"]
if stmt == nil {
return fmt.Errorf("load_item_effects query not prepared")
}
rows, err := stmt.Query(item.Details.ItemID)
if err != nil {
return err
}
defer rows.Close()
for rows.Next() {
var effect ItemEffect
var itemID int32
err := rows.Scan(&itemID, &effect.Effect, &effect.Percentage, &effect.SubBulletFlag)
if err != nil {
return err
}
item.ItemEffects = append(item.ItemEffects, &effect)
}
return rows.Err()
}
// loadItemAppearances loads item appearance data
func (idb *ItemDatabase) loadItemAppearances(item *Item) error {
stmt := idb.queries["load_item_appearances"]
if stmt == nil {
return fmt.Errorf("load_item_appearances query not prepared")
}
rows, err := stmt.Query(item.Details.ItemID)
if err != nil {
return err
}
defer rows.Close()
// Only process the first appearance
if rows.Next() {
var appearance ItemAppearance
var itemID int32
err := rows.Scan(&itemID, &appearance.Type, &appearance.Red, &appearance.Green,
&appearance.Blue, &appearance.HighlightRed, &appearance.HighlightGreen,
&appearance.HighlightBlue)
if err != nil {
return err
}
// Set the appearance data on the item
item.GenericInfo.AppearanceID = appearance.Type
item.GenericInfo.AppearanceRed = appearance.Red
item.GenericInfo.AppearanceGreen = appearance.Green
item.GenericInfo.AppearanceBlue = appearance.Blue
item.GenericInfo.AppearanceHighlightRed = appearance.HighlightRed
item.GenericInfo.AppearanceHighlightGreen = appearance.HighlightGreen
item.GenericInfo.AppearanceHighlightBlue = appearance.HighlightBlue
}
return rows.Err()
}
// loadItemLevelOverrides loads item level overrides for different classes
func (idb *ItemDatabase) loadItemLevelOverrides(item *Item) error {
stmt := idb.queries["load_item_level_overrides"]
if stmt == nil {
return fmt.Errorf("load_item_level_overrides query not prepared")
}
rows, err := stmt.Query(item.Details.ItemID)
if err != nil {
return err
}
defer rows.Close()
for rows.Next() {
var override ItemLevelOverride
var itemID int32
err := rows.Scan(&itemID, &override.AdventureClass, &override.TradeskillClass, &override.Level)
if err != nil {
return err
}
item.ItemLevelOverrides = append(item.ItemLevelOverrides, &override)
}
return rows.Err()
}
// loadItemModStrings loads item modifier strings
func (idb *ItemDatabase) loadItemModStrings(item *Item) error {
stmt := idb.queries["load_item_mod_strings"]
if stmt == nil {
return fmt.Errorf("load_item_mod_strings query not prepared")
}
rows, err := stmt.Query(item.Details.ItemID)
if err != nil {
return err
}
defer rows.Close()
for rows.Next() {
var statString ItemStatString
var itemID int32
err := rows.Scan(&itemID, &statString.StatString)
if err != nil {
return err
}
item.ItemStringStats = append(item.ItemStringStats, &statString)
}
return rows.Err()
}
// nextUniqueIDCounter is the global counter for unique item IDs
var nextUniqueIDCounter int64 = 1
// NextUniqueItemID generates a unique ID for items (thread-safe)
func NextUniqueItemID() int64 {
return atomic.AddInt64(&nextUniqueIDCounter, 1)
}
// Helper functions for database value parsing (kept for future use)
// Close closes all prepared statements and the database connection
func (idb *ItemDatabase) Close() error {
for name, stmt := range idb.queries {
if err := stmt.Close(); err != nil {
log.Printf("Error closing statement %s: %v", name, err)
}
}
return nil
}