User:Chonx/common.js: Difference between revisions

Revision as of 19:22, 23 July 2026

/**
 * ext.itemScoreTable - EQL Equipment Analyzer / Item Score guide.
 *
 * Single self-contained module (same shape as ext.itemLevelSlider /
 * ext.classSlotEquip). Paste into User:<you>/common.js, then create a page
 * containing:  <div id="eql-item-score-table"></div>
 *
 * Data access goes through ACTIVE_DATASOURCE so a future server-side
 * Special:ItemScoreTable can replace ClientDataSource with a one-line change.
 */
( function ( $, mw ) {
	'use strict';

	// ---- styles (injected; common.js has no separate CSS channel) ----
	( function () {
		var s = document.createElement( 'style' );
		s.setAttribute( 'data-eqlis', '1' );
		s.textContent = "/* EQL Item Score Table \u2014 styles (paste into User:<you>/common.css, optional).\n   Mirrors the wiki's immersive gold/dark palette. */\n\n.eqlis-app { margin: 1.25rem 0; padding: 1rem; background: linear-gradient(180deg, rgba(13,18,26,0.9), rgba(8,12,18,0.95)); border: 1px solid rgba(216,183,92,0.34); border-radius: 10px; color: #cdd3df; box-sizing: border-box; }\n.eqlis-title { color: #d8b75c; font-family: Georgia, serif; font-size: 1.5rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }\n.eqlis-subtitle { color: #8894a8; margin-bottom: 0.75rem; }\n\n.eqlis-controls { display: flex; flex-wrap: wrap; gap: 0.9rem 1.4rem; margin-bottom: 0.75rem; }\n.eqlis-field { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; }\n.eqlis-field > label, .eqlis-legend { color: #d8b75c; font-weight: 700; font-size: 0.82rem; letter-spacing: 0.03em; text-transform: uppercase; }\n.eqlis-single, .eqlis-multi, .eqlis-num { background: rgba(8,12,18,0.88); border: 1px solid rgba(216,183,92,0.28); border-radius: 6px; color: #cdd3df; padding: 0.35rem 0.45rem; }\n.eqlis-single { margin-right: 0.35rem; }\n.eqlis-num { width: 4.5rem; }\n.eqlis-level-out { color: #ffd700; font-weight: bold; margin-left: 0.4rem; }\n\n.eqlis-scorebox, .eqlis-colbox { max-width: 22rem; }\n.eqlis-check { display: inline-flex; align-items: center; gap: 0.25rem; margin: 0.1rem 0.6rem 0.1rem 0; font-size: 0.85rem; color: #cdd3df; font-weight: normal; text-transform: none; letter-spacing: 0; }\n.eqlis-sv { padding-left: 1rem; }\n\n.eqlis-run { margin: 0.5rem 0; padding: 0.5rem 1.2rem; background: linear-gradient(180deg, rgba(147,197,114,0.96), rgba(61,117,62,0.98)); border: 1px solid rgba(245,220,150,0.82); border-radius: 999px; color: #0d1220; font-weight: 700; cursor: pointer; }\n.eqlis-run:disabled { opacity: 0.6; cursor: default; }\n.eqlis-status { min-height: 1.2rem; color: #8894a8; }\n.eqlis-status.eqlis-err { color: #ff9b9b; }\n\n.eqlis-count { color: #8894a8; margin: 0.4rem 0; }\n.eqlis-results { max-width: 100%; overflow-x: auto; }\n.eqlis-results table.eqlis-results { width: max-content; min-width: 100%; }\n.eqlis-results th { white-space: nowrap; }\n.eqlis-score { color: #ffd700; font-weight: bold; font-variant-numeric: tabular-nums; }\n";
		( document.head || document.documentElement ).appendChild( s );
	}() );


	var MAX_LEVEL = 10;

	// Stats that scale via the "primary spreadsheet" rule (incl. saves).
	var PRIMARY_STATS = [
		'AC', 'HP', 'MP', 'END',
		'STR', 'STA', 'AGI', 'DEX', 'WIS', 'INT', 'CHA',
		'SV_MAGIC', 'SV_FIRE', 'SV_COLD', 'SV_POISON', 'SV_DISEASE'
	];

	// Stats that, when >=2 are present, grant SV VOID: +level.
	var SV_VOID_QUALIFIERS = [
		'STR', 'STA', 'INT', 'AGI', 'DEX', 'CHA', 'WIS',
		'SV_FIRE', 'SV_COLD', 'SV_POISON', 'SV_MAGIC', 'SV_DISEASE'
	];

	// All stat labels we recognize in a stat block, longest-first for regex.
	var STAT_ALIASES = {
		'DAMAGE': 'DMG',
		'DMG': 'DMG',
		'MANA': 'MP',
		'MP': 'MP',
		'ENDUR': 'END',
		'END': 'END',
		'SV MAGIC': 'SV_MAGIC',
		'SV FIRE': 'SV_FIRE',
		'SV COLD': 'SV_COLD',
		'SV POISON': 'SV_POISON',
		'SV DISEASE': 'SV_DISEASE',
		'MAGIC': 'SV_MAGIC',
		'FIRE': 'SV_FIRE',
		'COLD': 'SV_COLD',
		'POISON': 'SV_POISON',
		'DISEASE': 'SV_DISEASE',
		'HP REGEN': 'HP_REGEN',
		'WEIGHT': 'WT',
		'WT': 'WT',
		'AC': 'AC',
		'ARMOR CLASS': 'AC',
		'HP': 'HP',
		'HIT POINTS': 'HP',
		'STR': 'STR',
		'STRENGTH': 'STR',
		'STA': 'STA',
		'STAMINA': 'STA',
		'AGI': 'AGI',
		'AGILITY': 'AGI',
		'DEX': 'DEX',
		'DEXTERITY': 'DEX',
		'WIS': 'WIS',
		'WISDOM': 'WIS',
		'INT': 'INT',
		'INTELLIGENCE': 'INT',
		'CHA': 'CHA',
		'CHARISMA': 'CHA',
		'HASTE': 'HASTE'
	};

	// Labels to match in the stat text (longest first so "SV FIRE" beats "FIRE").
	var STAT_LABELS = Object.keys( STAT_ALIASES ).sort( function ( a, b ) {
		return b.length - a.length;
	} );

	// ---- Excel-parity math (ported verbatim from ext.itemLevelSlider.js) ----

	function excelRound( value, digits ) {
		var factor = Math.pow( 10, digits || 0 );
		var scaled = value * factor;
		if ( value >= 0 ) {
			return Math.floor( scaled + 0.5 ) / factor;
		}
		return Math.ceil( scaled - 0.5 ) / factor;
	}

	function intFloor( value ) {
		return Math.floor( value );
	}

	// ---- Scaling formulas (ported from ext.itemLevelSlider.js) --------------
	// state here is just an integer effective level (0..10).

	function scalePrimaryStat( signedBase, level ) {
		if ( signedBase === 0 ) {
			return 0;
		}
		if ( signedBase > 0 && signedBase <= 10 ) {
			return signedBase + level;
		}
		if ( signedBase > 10 ) {
			return intFloor( signedBase + excelRound( signedBase * level / 10, 0 ) );
		}
		return Math.min( 0, signedBase + level );
	}

	function scaleDamage( signedBase, level ) {
		if ( signedBase <= 0 ) {
			return signedBase;
		}
		return signedBase + intFloor( signedBase * level / 10 );
	}

	// ---- Parsing ------------------------------------------------------------

	function canonicalStatKey( label ) {
		var name = String( label || '' ).toUpperCase().replace( /\s+/g, ' ' ).trim();
		return STAT_ALIASES[ name ] || name.replace( /\s+/g, '_' );
	}

	function detectEffectType( descriptor ) {
		var d = String( descriptor || '' ).toLowerCase();
		if ( /\(worn/.test( d ) ) {
			return 'worn';
		}
		if ( /\(combat/.test( d ) ) {
			return 'combat';
		}
		// Click effects render a casting time but aren't Worn/Combat.
		if ( /casting time/.test( d ) ) {
			return 'click';
		}
		return 'click';
	}

	/**
	 * Parse a stat block (plain text; callers should strip HTML first).
	 * Returns a normalized item fields object. focus_effect is NOT present in
	 * stat blocks — it is set later by the data-source enrichment step.
	 */
	function parseItemData( text ) {
		var raw = String( text || '' ).replace( / /g, ' ' );
		var item = {
			slot: null,
			skill: null,        // e.g. "1H Slashing" (weapon skill line)
			type: 'armor',      // weapon skill, or "armor" when no Skill: line
			delay: 0,
			stats: {},          // canonical key -> signed base number
			effects: [],        // [{ type, name }]
			effectTypes: {},    // { worn:true, combat:true, click:true, focus:true }
			flags: {
				magic: /\bMAGIC ITEM\b/i.test( raw ),
				lore: /\bLORE ITEM\b/i.test( raw ),
				noDrop: /\bNO DROP\b/i.test( raw )
			}
		};

		var slotMatch = raw.match( /Slot:\s*([A-Z0-9 ]+?)(?:\s{2,}|<|\bSkill\b|\bAC\b|\bCharges\b|\bAtk\b|$)/i );
		if ( slotMatch ) {
			item.slot = slotMatch[ 1 ].trim();
		}

		var skillMatch = raw.match( /Skill:\s*([A-Za-z0-9 ]+?)\s+Atk\s+Delay:\s*(\d+(?:\.\d+)?)/i );
		if ( skillMatch ) {
			item.skill = skillMatch[ 1 ].trim();
			item.type = item.skill;
			item.delay = parseFloat( skillMatch[ 2 ] );
		} else {
			var delayOnly = raw.match( /Atk\s+Delay:\s*(\d+(?:\.\d+)?)/i );
			if ( delayOnly ) {
				item.delay = parseFloat( delayOnly[ 1 ] );
			}
		}

		// Effects come in two formats on the wiki:
		//   1. "Effect: <name> (<Worn|Combat|Casting Time...>)"  -> type from descriptor
		//   2. "<Focus|Worn|Click|Combat> Effect: <name>"        -> type from the word
		function pushEffect( type, name ) {
			name = String( name || '' ).replace( /\s*\(.*$/, '' ).trim();
			if ( !name ) {
				return;
			}
			var dup = item.effects.some( function ( e ) {
				return e.type === type && e.name === name;
			} );
			if ( !dup ) {
				item.effects.push( { type: type, name: name } );
				item.effectTypes[ type ] = true;
			}
		}

		var typedRe = /\b(Focus|Worn|Click|Combat)\s+Effect:\s*([^\n<(]+)/gi;
		var tm;
		while ( ( tm = typedRe.exec( raw ) ) !== null ) {
			pushEffect( tm[ 1 ].toLowerCase(), tm[ 2 ] );
		}

		var effectRe = /(?:^|[^A-Za-z])Effect:\s*([^()\n<]+?)\s*\(([^)]*)\)/gi;
		var em;
		while ( ( em = effectRe.exec( raw ) ) !== null ) {
			pushEffect( detectEffectType( '(' + em[ 2 ] + ')' ), em[ 1 ] );
		}

		// Stats: for each known label, capture "LABEL: [+-]?num"
		var labelAlt = STAT_LABELS.map( function ( s ) {
			return s.replace( /[.*+?^${}()|[\]\\]/g, '\\$&' );
		} ).join( '|' );
		var statRe = new RegExp( '\\b(' + labelAlt + ')\\s*:\\s*([+\\-]?)(\\d+(?:\\.\\d+)?)', 'gi' );
		var sm;
		while ( ( sm = statRe.exec( raw ) ) !== null ) {
			var key = canonicalStatKey( sm[ 1 ] );
			var value = parseFloat( sm[ 3 ] );
			if ( sm[ 2 ] === '-' ) {
				value = -value;
			}
			// DMG/WT/HASTE/HP_REGEN handled specially or ignored for scoring stats.
			item.stats[ key ] = value;
		}

		return item;
	}

	// ---- Scoring ------------------------------------------------------------

	// Default score component weights (all 1). A component contributes its
	// scaled stat value when enabled.
	function defaultComponents() {
		return {
			ratio: false, dmg: false, delay: false,
			ac: false, str: false, sta: false, agi: false, dex: false,
			int: false, wis: false, cha: false,
			totalSV: false,
			svMagic: false, svFire: false, svCold: false,
			svPoison: false, svDisease: false, svVoid: false
		};
	}

	function svVoidBonus( item, level ) {
		if ( level <= 0 ) {
			return 0;
		}
		var count = 0;
		for ( var i = 0; i < SV_VOID_QUALIFIERS.length; i++ ) {
			if ( Object.prototype.hasOwnProperty.call( item.stats, SV_VOID_QUALIFIERS[ i ] ) ) {
				count++;
			}
		}
		return count >= 2 ? level : 0;
	}

	/**
	 * Compute the scaled value of one stat key at a given level.
	 */
	function scaledStat( item, key, level ) {
		if ( !Object.prototype.hasOwnProperty.call( item.stats, key ) ) {
			return 0;
		}
		var base = item.stats[ key ];
		if ( PRIMARY_STATS.indexOf( key ) !== -1 ) {
			return scalePrimaryStat( base, level );
		}
		if ( key === 'DMG' ) {
			return scaleDamage( base, level );
		}
		return base;
	}

	/**
	 * scoreItem(item, opts)
	 *   opts.level        integer 0..10
	 *   opts.components    map of enabled score components (see defaultComponents)
	 *   opts.effectBonus  { focus, worn, click, combat } flat points per present effect
	 */
	function scoreItem( item, opts ) {
		opts = opts || {};
		var level = Math.max( 0, Math.min( MAX_LEVEL, parseInt( opts.level, 10 ) || 0 ) );
		var comp = opts.components || defaultComponents();
		var effectBonus = opts.effectBonus || {};
		var breakdown = {};
		var score = 0;

		function add( name, value ) {
			if ( value ) {
				breakdown[ name ] = value;
				score += value;
			}
		}

		var svKeys = {
			svMagic: 'SV_MAGIC', svFire: 'SV_FIRE', svCold: 'SV_COLD',
			svPoison: 'SV_POISON', svDisease: 'SV_DISEASE'
		};
		var simpleKeys = {
			ac: 'AC', str: 'STR', sta: 'STA', agi: 'AGI', dex: 'DEX',
			int: 'INT', wis: 'WIS', cha: 'CHA'
		};

		var scaledDmg = scaledStat( item, 'DMG', level );

		if ( comp.ratio && item.delay > 0 && scaledDmg > 0 ) {
			// Ratio score = (damage / delay) * 10  (damage/delay per user; *10 to scale up)
			add( 'ratio', ( scaledDmg / item.delay ) * 10 );
		}
		if ( comp.dmg ) {
			add( 'dmg', scaledDmg );
		}
		if ( comp.delay && item.delay > 0 ) {
			// Lower delay is better; contribute inverse so faster weapons score higher.
			add( 'delay', 100 / item.delay );
		}

		Object.keys( simpleKeys ).forEach( function ( ck ) {
			if ( comp[ ck ] ) {
				add( ck, scaledStat( item, simpleKeys[ ck ], level ) );
			}
		} );

		if ( comp.totalSV ) {
			var svTotal = 0;
			Object.keys( svKeys ).forEach( function ( sk ) {
				svTotal += scaledStat( item, svKeys[ sk ], level );
			} );
			add( 'totalSV', svTotal );
		} else {
			Object.keys( svKeys ).forEach( function ( sk ) {
				if ( comp[ sk ] ) {
					add( sk, scaledStat( item, svKeys[ sk ], level ) );
				}
			} );
		}

		if ( comp.svVoid ) {
			add( 'svVoid', svVoidBonus( item, level ) );
		}

		// Effect flat bonuses (per present effect type).
		[ 'worn', 'combat', 'click' ].forEach( function ( t ) {
			if ( item.effectTypes[ t ] && effectBonus[ t ] ) {
				add( 'effect_' + t, effectBonus[ t ] );
			}
		} );
		if ( item.effectTypes.focus && effectBonus.focus ) {
			add( 'effect_focus', effectBonus.focus );
		}

		return {
			score: Math.round( score * 1000 ) / 1000,
			breakdown: breakdown
		};
	}

	// ---- Weapon ratio helper (for the display column) -----------------------

	function weaponRatio( item, level ) {
		var dmg = scaledStat( item, 'DMG', level || 0 );
		if ( !item.delay || dmg <= 0 ) {
			return null;
		}
		return dmg / item.delay;
	}

	var EQLIS = {
		MAX_LEVEL: MAX_LEVEL,
		PRIMARY_STATS: PRIMARY_STATS,
		SV_VOID_QUALIFIERS: SV_VOID_QUALIFIERS,
		excelRound: excelRound,
		scalePrimaryStat: scalePrimaryStat,
		scaleDamage: scaleDamage,
		canonicalStatKey: canonicalStatKey,
		parseItemData: parseItemData,
		defaultComponents: defaultComponents,
		scaledStat: scaledStat,
		svVoidBonus: svVoidBonus,
		scoreItem: scoreItem,
		weaponRatio: weaponRatio
	};

	// ===================== app layer (UI / data / mount) =====================

	var STORAGE_KEY = 'eqlis-state-v1';
	var MOUNT_ID = 'eql-item-score-table';

	// ClassSlotEquip understands these slot values (from ext.classSlotEquip.js).
	var SLOTS = [
		'Primary', 'One-Handed', 'Two-Handed', 'Secondary', 'Range', 'Ammo',
		'Bard Instrument', 'Head', 'Face', 'Ear', 'Neck', 'Shoulders', 'Arms',
		'Back', 'Wrist', 'Hands', 'Fingers', 'Chest', 'Waist', 'Legs', 'Feet'
	];

	var CLASSES = [
		'', 'Bard', 'Beastlord', 'Berserker', 'Cleric', 'Druid', 'Enchanter',
		'Magician', 'Monk', 'Necromancer', 'Paladin', 'Ranger', 'Rogue',
		'Shadow Knight', 'Shaman', 'Warrior', 'Wizard'
	];

	// Weapon types as they appear in the "Skill:" line / categories.
	var WEAPON_TYPES = [
		'1H Blunt', '2H Blunt', '1H Slashing', '2H Slashing',
		'Piercing', '2H Piercing', 'Archery', 'Throwing',
		'Instrument', 'Hand to Hand'
	];

	// Currently-available zones + average mob level, exactly as given in ZoneLevels.md
	// (name -> average mob level). STATIC data (eqltools-derived). This doubles as the
	// availability whitelist (an item is in-scope if its drop zone is here), the Zone
	// filter options, and the "Zone Avg Lvl" column source.
	// REVISIT: swap to a live wiki-sourced pull once that data path is settled.
	var ZONE_AVG_LEVEL = {
		'The Feerrott': 4,
		'Toxxulia Forest': 4,
		'Misty Thicket': 5,
		'Qeynos Hills': 6,
		'The Qeynos Aqueduct System': 6,
		'Innothule Swamp': 6,
		'The Steamfont Mountains': 6,
		'The Greater Faydark': 7,
		'Butcherblock Mountains': 7,
		'Nektulos Forest': 7,
		'East Commonlands': 8,
		'Everfrost Peaks': 8,
		'The Northern Desert of Ro': 9,
		'Blackburrow': 10,
		'The Southern Desert of Ro': 10,
		'West Commonlands': 10,
		'The Western Plains of Karana': 10,
		'Erud\'s Crossing': 11,
		'The Warrens': 11,
		'Clan Crushbone': 12,
		'Befallen': 13,
		'The Lavastorm Mountains': 13,
		'Dagnor\'s Cauldron': 13,
		'The Gorge of King Xorbb': 14,
		'The Oasis of Marr': 14,
		'The Eastern Plains of Karana': 14,
		'Highpass Hold': 15,
		'The Lesser Faydark': 15,
		'The Northern Plains of Karana': 15,
		'Lake Rathetear': 17,
		'The Rathe Mountains': 17,
		'Najena': 19,
		'The Liberated Citadel of Runnyeye': 19,
		'The City of Guk': 20,
		'The Southern Plains of Karana': 21,
		'The Stonebrunt Mountains': 21,
		'The Ocean of Tears': 22,
		'The Estate of Unrest': 23,
		'High Keep': 25,
		'Solusek\'s Eye': 25,
		'Temple of Cazic-Thule': 26,
		'Permafrost Keep': 26,
		'Kithicor Forest': 30,
		'The Castle of Mistmoore': 31,
		'The Lair of the Splitpaw': 31,
		'The Temple of Solusek Ro': 35,
		'The Ruins of Old Guk': 36,
		'Kedge Keep': 40,
		'Nagafen\'s Lair': 40,
		'The Ruins of Old Paineel': 45,
		'The Plane of Fear': 50,
		'The Plane of Hate': 52,
		'The Plane of Sky': 54
	};

	// Wiki zone names that don't normalize to a ZONE_AVG_LEVEL key by prefix-stripping
	// alone. Extend as item->zone enrichment surfaces more mismatches.
	var ZONE_ALIASES = {
		'Lower Guk': 'The Ruins of Old Guk',
		'Upper Guk': 'The City of Guk',
		'Guk': 'The City of Guk',
		'Paineel': 'The Ruins of Old Paineel',
		'Runnyeye': 'The Liberated Citadel of Runnyeye',
		'Runnyeye Citadel': 'The Liberated Citadel of Runnyeye',
		'Castle Mistmoore': 'The Castle of Mistmoore',
		'Mistmoore': 'The Castle of Mistmoore',
		'Splitpaw': 'The Lair of the Splitpaw',
		'Unrest': 'The Estate of Unrest',
		'Cazic Thule': 'Temple of Cazic-Thule',
		'Cazic-Thule': 'Temple of Cazic-Thule',
		'Oasis of Marr': 'The Oasis of Marr',
		'Solusek A': 'Solusek\'s Eye',
		'Solusek B': 'Nagafen\'s Lair'
	};

	function zoneKey( name ) {
		return String( name || '' )
			.toLowerCase()
			.replace( /^the\s+/, '' )
			.replace( /[^a-z0-9]+/g, ' ' )
			.trim();
	}

	var ZONE_INDEX = ( function () {
		var idx = {};
		Object.keys( ZONE_AVG_LEVEL ).forEach( function ( name ) {
			idx[ zoneKey( name ) ] = name;
		} );
		Object.keys( ZONE_ALIASES ).forEach( function ( alias ) {
			idx[ zoneKey( alias ) ] = ZONE_ALIASES[ alias ];
		} );
		return idx;
	}() );

	// Canonical ZONE_AVG_LEVEL name for any wiki zone string, or null if out of scope.
	function canonicalZone( name ) {
		if ( !name ) {
			return null;
		}
		return ZONE_INDEX[ zoneKey( name ) ] || null;
	}

	// Average mob level for any wiki zone string, or null if out of scope.
	function zoneAverageLevel( name ) {
		var canonical = canonicalZone( name );
		return canonical ? ZONE_AVG_LEVEL[ canonical ] : null;
	}

	function zoneDisplayNames() {
		return Object.keys( ZONE_AVG_LEVEL ).sort();
	}

	// Score component checkboxes. `sv` marks the mutually-exclusive save group.
	var SCORE_COMPONENTS = [
		{ key: 'ratio', label: 'Weapon Ratio (dmg/delay)' },
		{ key: 'dmg', label: 'Weapon Damage' },
		{ key: 'delay', label: 'Weapon Delay (faster=better)' },
		{ key: 'ac', label: 'AC' },
		{ key: 'str', label: 'Strength' },
		{ key: 'dex', label: 'Dexterity' },
		{ key: 'agi', label: 'Agility' },
		{ key: 'sta', label: 'Stamina' },
		{ key: 'int', label: 'Intelligence' },
		{ key: 'wis', label: 'Wisdom' },
		{ key: 'cha', label: 'Charisma' }
	];
	var SV_COMPONENTS = [
		{ key: 'svMagic', label: 'SV Magic' },
		{ key: 'svFire', label: 'SV Fire' },
		{ key: 'svCold', label: 'SV Cold' },
		{ key: 'svPoison', label: 'SV Poison' },
		{ key: 'svDisease', label: 'SV Disease' },
		{ key: 'svVoid', label: 'SV Void' }
	];
	var EFFECT_TYPES = [ 'focus', 'worn', 'click', 'combat' ];

	// Result columns. `enrich:true` = populated by the (future) enrichment phase.
	var COLUMNS = [
		{ key: 'name', label: 'Name', always: true },
		{ key: 'score', label: 'Item Score', always: true },
		{ key: 'slot', label: 'Slot' },
		{ key: 'type', label: 'Type' },
		{ key: 'focus', label: 'Focus', enrich: true },
		{ key: 'worn', label: 'Worn' },
		{ key: 'click', label: 'Click' },
		{ key: 'combat', label: 'Combat' },
		{ key: 'ratio', label: 'Ratio' },
		{ key: 'DMG', label: 'DMG' },
		{ key: 'delay', label: 'Delay' },
		{ key: 'AC', label: 'AC' },
		{ key: 'STR', label: 'STR' },
		{ key: 'DEX', label: 'DEX' },
		{ key: 'AGI', label: 'AGI' },
		{ key: 'STA', label: 'STA' },
		{ key: 'INT', label: 'INT' },
		{ key: 'WIS', label: 'WIS' },
		{ key: 'CHA', label: 'CHA' },
		{ key: 'SV_MAGIC', label: 'SV Mag' },
		{ key: 'SV_FIRE', label: 'SV Fire' },
		{ key: 'SV_COLD', label: 'SV Cold' },
		{ key: 'SV_POISON', label: 'SV Poi' },
		{ key: 'SV_DISEASE', label: 'SV Dis' },
		{ key: 'svVoid', label: 'SV Void' },
		{ key: 'source', label: 'Source' },
		{ key: 'level', label: 'Level', enrich: true },
		{ key: 'zone', label: 'Zone', enrich: true },
		{ key: 'zoneAvg', label: 'Zone Avg Lvl', enrich: true }
	];

	// ---- state / persistence ------------------------------------------------

	function defaultState() {
		var comps = {};
		SCORE_COMPONENTS.concat( SV_COMPONENTS ).forEach( function ( c ) {
			comps[ c.key ] = false;
		} );
		comps.totalSV = false;
		var cols = {};
		COLUMNS.forEach( function ( c ) {
			cols[ c.key ] = !c.enrich; // hide enrichment columns by default in v1
		} );
		return {
			level: 0,
			classes: [ '', '', '' ],
			slots: [ 'Primary' ],
			weaponTypes: [],
			zones: [],
			minLevel: 1,
			maxLevel: 100,
			components: comps,
			effectBonus: { focus: 25, worn: 25, click: 25, combat: 25 },
			columns: cols
		};
	}

	function loadState() {
		try {
			var raw = window.localStorage.getItem( STORAGE_KEY );
			if ( raw ) {
				return $.extend( true, defaultState(), JSON.parse( raw ) );
			}
		} catch ( e ) {}
		return defaultState();
	}

	function saveState( state ) {
		try {
			window.localStorage.setItem( STORAGE_KEY, JSON.stringify( state ) );
		} catch ( e ) {}
	}

	// ---- DataSource abstraction --------------------------------------------

	function classSlotEquipUrl( classes, slot ) {
		var base = ( mw.config.get( 'wgScript' ) || '/index.php' );
		return base + '?title=Special:ClassSlotEquip&eqlBuilder=1' +
			'&classA=' + encodeURIComponent( classes[ 0 ] || '' ) +
			'&classB=' + encodeURIComponent( classes[ 1 ] || '' ) +
			'&classC=' + encodeURIComponent( classes[ 2 ] || '' ) +
			'&slot=' + encodeURIComponent( slot );
	}

	// Parse one ClassSlotEquip HTML fragment into item records.
	function parseFragment( html, slot ) {
		var $frag = $( '<div>' ).html( html );
		var items = [];
		$frag.find( 'table.eoTable tr, table.sortable tr' ).each( function () {
			var $tr = $( this );
			if ( $tr.find( 'th' ).length ) {
				return; // header
			}
			var $cells = $tr.children( 'td' );
			if ( !$cells.length ) {
				return;
			}
			var $nameCell = $cells.eq( 0 );
			var $link = $nameCell.find( 'a' ).first();
			var $hb = $nameCell.find( '.hb' ).first();
			var $itemdata = $nameCell.find( '.itemdata' ).first();
			if ( !$itemdata.length ) {
				return;
			}
			var fields = EQLIS.parseItemData( $itemdata.text() );
			// Source: the "Drops From" column (3rd, index 2).
			var $src = $cells.eq( 2 );
			var srcText = $.trim( $src.text() );
			var sourceType = /quest/i.test( srcText ) ? 'quest' : 'drop';

			items.push( {
				name: $.trim( $link.text() ) || $.trim( $nameCell.text() ),
				href: $link.attr( 'href' ) || null,
				popoverHtml: $hb.length ? $hb.prop( 'outerHTML' ) : '',
				fields: fields,
				slot: slot,
				source: { type: sourceType, text: srcText, html: $src.html() },
				// enrichment placeholders
				enrich: { focus: null, level: null, zone: null, zoneAvg: null }
			} );
		} );
		return items;
	}

	var ClientDataSource = {
		/**
		 * fetchItems(query) -> Promise<Array<itemRecord>>
		 * query: { classes:[a,b,c], slots:[...] }
		 * Fans out one request per slot, merges, de-dupes by name+slot.
		 */
		fetchItems: function ( query ) {
			var slots = query.slots && query.slots.length ? query.slots : [ 'Primary' ];
			var requests = slots.map( function ( slot ) {
				return $.ajax( {
					url: classSlotEquipUrl( query.classes, slot ),
					dataType: 'html'
				} ).then( function ( html ) {
					return parseFragment( html, slot );
				}, function () {
					return []; // one slot failing shouldn't kill the whole run
				} );
			} );

			return $.when.apply( $, requests ).then( function () {
				var merged = [];
				var seen = {};
				var lists = Array.prototype.slice.call( arguments );
				// $.when with 1 request passes the value directly, not in an array-of-args.
				if ( requests.length === 1 ) {
					lists = [ arguments[ 0 ] ];
				}
				lists.forEach( function ( list ) {
					( list || [] ).forEach( function ( it ) {
						var k = it.name + '|' + it.slot;
						if ( !seen[ k ] ) {
							seen[ k ] = true;
							merged.push( it );
						}
					} );
				} );
				return merged;
			} );
		}
	};

	// Stub for the eventual server-backed path (kept so the flip is one line).
	var SpecialPageDataSource = {
		fetchItems: function ( query ) {
			var base = ( mw.config.get( 'wgScript' ) || '/index.php' );
			var url = base + '?title=Special:ItemScoreTable&format=json' +
				'&classA=' + encodeURIComponent( query.classes[ 0 ] || '' ) +
				'&classB=' + encodeURIComponent( query.classes[ 1 ] || '' ) +
				'&classC=' + encodeURIComponent( query.classes[ 2 ] || '' ) +
				'&slots=' + encodeURIComponent( ( query.slots || [] ).join( '|' ) );
			return $.getJSON( url ).then( function ( data ) {
				return data.items || [];
			} );
		}
	};

	var ACTIVE_DATASOURCE = ClientDataSource; // <-- flip to SpecialPageDataSource later

	// ---- filtering + scoring ------------------------------------------------

	function normalizeType( skill ) {
		if ( !skill ) {
			return 'armor';
		}
		return skill;
	}

	function passesFilters( item, state ) {
		// Weapon type
		if ( state.weaponTypes.length ) {
			var t = normalizeType( item.fields.type );
			if ( state.weaponTypes.indexOf( t ) === -1 ) {
				return false;
			}
		}
		// Level range (enrichment-dependent). In v1, item.enrich.level is null;
		// only filter when we actually have a level so we don't hide everything.
		var lvl = item.enrich.level;
		if ( lvl != null ) {
			if ( lvl < state.minLevel || lvl > state.maxLevel ) {
				return false;
			}
		}
		// Zone (enrichment-dependent) — match via canonical zone name so wiki name
		// variants ("The …", Guk aliases) line up with the ZONE_AVG_LEVEL keys.
		if ( state.zones.length && item.enrich.zone != null ) {
			var itemZone = canonicalZone( item.enrich.zone );
			var matched = item.enrich.zone === 'multiple' || state.zones.some( function ( sel ) {
				return canonicalZone( sel ) === itemZone;
			} );
			if ( !matched ) {
				return false;
			}
		}
		return true;
	}

	function scoreOpts( state ) {
		return {
			level: state.level,
			components: state.components,
			effectBonus: state.effectBonus
		};
	}

	// ---- rendering ----------------------------------------------------------

	function el( tag, attrs, children ) {
		var $e = $( '<' + tag + '>' );
		if ( attrs ) {
			$e.attr( attrs );
		}
		if ( children != null ) {
			$e.append( children );
		}
		return $e;
	}

	function statCell( item, key, level ) {
		if ( key === 'ratio' ) {
			var r = EQLIS.weaponRatio( item.fields, level );
			return r == null ? '' : r.toFixed( 3 );
		}
		if ( key === 'delay' ) {
			return item.fields.delay || '';
		}
		if ( key === 'svVoid' ) {
			var v = EQLIS.svVoidBonus( item.fields, level );
			return v ? '+' + v : '';
		}
		// scalable stat key (DMG / AC / STR / SV_*)
		if ( Object.prototype.hasOwnProperty.call( item.fields.stats, key ) ) {
			return EQLIS.scaledStat( item.fields, key, level );
		}
		return '';
	}

	function effectCell( item, type ) {
		var names = item.fields.effects
			.filter( function ( e ) { return e.type === type; } )
			.map( function ( e ) { return e.name; } );
		return names.join( ', ' );
	}

	function buildResultsTable( items, state ) {
		var level = state.level;
		var visibleCols = COLUMNS.filter( function ( c ) {
			return c.always || state.columns[ c.key ];
		} );

		var $table = el( 'table', { 'class': 'eoTable sortable eqlis-results' } );
		var $thead = el( 'thead' );
		var $htr = el( 'tr' );
		visibleCols.forEach( function ( c ) {
			$htr.append( el( 'th', null, document.createTextNode( c.label ) ) );
		} );
		$thead.append( $htr );
		$table.append( $thead );

		var $tbody = el( 'tbody' );

		// score + filter, then sort by score desc for a useful default
		var rows = items
			.filter( function ( it ) { return passesFilters( it, state ); } )
			.map( function ( it ) {
				it._score = EQLIS.scoreItem( it.fields, scoreOpts( state ) ).score;
				return it;
			} )
			.sort( function ( a, b ) { return b._score - a._score; } );

		rows.forEach( function ( it ) {
			var $tr = el( 'tr' );
			visibleCols.forEach( function ( c ) {
				var $td = el( 'td' );
				switch ( c.key ) {
					case 'name':
						// embed the popover markup so the wiki's hover CSS works
						$td.html(
							'<div class="hbdiv">' +
							( it.href ? '<a href="' + it.href + '">' + it.name + '</a>' : it.name ) +
							( it.popoverHtml || '' ) +
							'</div>'
						);
						break;
					case 'score':
						$td.addClass( 'eqlis-score' ).text( it._score );
						break;
					case 'slot':
						$td.text( it.slot );
						break;
					case 'type':
						$td.text( normalizeType( it.fields.type ) );
						break;
					case 'focus':
						$td.text( it.enrich.focus || '' );
						break;
					case 'worn': case 'click': case 'combat':
						$td.text( effectCell( it, c.key ) );
						break;
					case 'source':
						$td.html( it.source.html || it.source.text || '' );
						break;
					case 'level':
						$td.text( it.enrich.level == null ? '—' : it.enrich.level );
						break;
					case 'zone':
						$td.text( it.enrich.zone == null ? '—' : it.enrich.zone );
						break;
					case 'zoneAvg':
						var avg = zoneAverageLevel( it.enrich.zone );
						$td.text( avg == null ? '—' : avg );
						break;
					default:
						$td.text( statCell( it, c.key, level ) );
				}
				$tr.append( $td );
			} );
			$tbody.append( $tr );
		} );

		$table.append( $tbody );
		return { $table: $table, count: rows.length };
	}

	// ---- UI shell -----------------------------------------------------------

	function multiSelect( id, values, selected, labelFor ) {
		var $sel = el( 'select', { id: id, multiple: 'multiple', size: Math.min( 8, values.length ), 'class': 'eqlis-multi' } );
		values.forEach( function ( v ) {
			var $o = el( 'option', { value: v }, document.createTextNode( labelFor ? labelFor( v ) : ( v || '— None —' ) ) );
			if ( selected.indexOf( v ) !== -1 ) {
				$o.prop( 'selected', true );
			}
			$sel.append( $o );
		} );
		return $sel;
	}

	function readMulti( $sel ) {
		return ( $sel.val() || [] ).slice();
	}

	function buildUI( $root, state ) {
		$root.empty().addClass( 'eqlis-app' );

		$root.append( el( 'div', { 'class': 'eqlis-title' }, 'Equipment Analyzer' ) );
		$root.append( el( 'div', { 'class': 'eqlis-subtitle' },
			'Pick classes/slots and scoring options, then press List Results. ' +
			'Zone / Level / Focus columns arrive in the enrichment phase.' ) );

		var $controls = el( 'div', { 'class': 'eqlis-controls' } );

		// Upgrade level slider
		var $lvlWrap = el( 'div', { 'class': 'eqlis-field' } );
		$lvlWrap.append( el( 'label', null, 'Upgrade Level: ' ) );
		var $lvl = el( 'input', { type: 'range', min: 0, max: EQLIS.MAX_LEVEL, step: 1, value: state.level, id: 'eqlis-level' } );
		var $lvlOut = el( 'span', { 'class': 'eqlis-level-out' }, String( state.level ) );
		$lvl.on( 'input', function () { $lvlOut.text( this.value ); } );
		$lvlWrap.append( $lvl ).append( $lvlOut );
		$controls.append( $lvlWrap );

		// Classes
		var $clsRow = el( 'div', { 'class': 'eqlis-field' } );
		$clsRow.append( el( 'label', null, 'Classes (up to 3): ' ) );
		[ 0, 1, 2 ].forEach( function ( i ) {
			var $s = el( 'select', { id: 'eqlis-class-' + i, 'class': 'eqlis-single' } );
			CLASSES.forEach( function ( c ) {
				var $o = el( 'option', { value: c }, document.createTextNode( c || '— None —' ) );
				if ( state.classes[ i ] === c ) { $o.prop( 'selected', true ); }
				$s.append( $o );
			} );
			$clsRow.append( $s );
		} );
		$controls.append( $clsRow );

		// Slots
		var $slotWrap = el( 'div', { 'class': 'eqlis-field' } );
		$slotWrap.append( el( 'label', null, 'Slots: ' ) );
		$slotWrap.append( multiSelect( 'eqlis-slots', SLOTS, state.slots ) );
		$controls.append( $slotWrap );

		// Weapon types
		var $wtWrap = el( 'div', { 'class': 'eqlis-field' } );
		$wtWrap.append( el( 'label', null, 'Weapon Type: ' ) );
		$wtWrap.append( multiSelect( 'eqlis-wtypes', WEAPON_TYPES, state.weaponTypes ) );
		$controls.append( $wtWrap );

		// Zones (currently-available list from ZONE_AVG_LEVEL)
		var $zoneWrap = el( 'div', { 'class': 'eqlis-field' } );
		$zoneWrap.append( el( 'label', null, 'Zone: ' ) );
		$zoneWrap.append( multiSelect( 'eqlis-zones', zoneDisplayNames(), state.zones ) );
		$controls.append( $zoneWrap );

		// Level range
		var $lr = el( 'div', { 'class': 'eqlis-field' } );
		$lr.append( el( 'label', null, 'Level min/max: ' ) );
		$lr.append( el( 'input', { type: 'number', id: 'eqlis-minlvl', min: 1, max: 100, value: state.minLevel, 'class': 'eqlis-num' } ) );
		$lr.append( el( 'input', { type: 'number', id: 'eqlis-maxlvl', min: 1, max: 100, value: state.maxLevel, 'class': 'eqlis-num' } ) );
		$controls.append( $lr );

		// Score components
		var $score = el( 'div', { 'class': 'eqlis-field eqlis-scorebox' } );
		$score.append( el( 'div', { 'class': 'eqlis-legend' }, 'Item Score components' ) );
		SCORE_COMPONENTS.forEach( function ( c ) {
			var $lab = el( 'label', { 'class': 'eqlis-check' } );
			var $cb = el( 'input', { type: 'checkbox', 'data-comp': c.key } );
			if ( state.components[ c.key ] ) { $cb.prop( 'checked', true ); }
			$lab.append( $cb ).append( document.createTextNode( ' ' + c.label ) );
			$score.append( $lab );
		} );
		// Total SV toggle
		var $totalLab = el( 'label', { 'class': 'eqlis-check' } );
		var $totalCb = el( 'input', { type: 'checkbox', 'data-comp': 'totalSV' } );
		if ( state.components.totalSV ) { $totalCb.prop( 'checked', true ); }
		$totalLab.append( $totalCb ).append( document.createTextNode( ' Total SV (sum of saves)' ) );
		$score.append( $totalLab );
		SV_COMPONENTS.forEach( function ( c ) {
			var $lab = el( 'label', { 'class': 'eqlis-check eqlis-sv' } );
			var $cb = el( 'input', { type: 'checkbox', 'data-comp': c.key } );
			if ( state.components[ c.key ] ) { $cb.prop( 'checked', true ); }
			$lab.append( $cb ).append( document.createTextNode( ' ' + c.label ) );
			$score.append( $lab );
		} );
		// disable individual saves when Total SV is on
		function syncSvDisabled() {
			var on = $totalCb.prop( 'checked' );
			$score.find( '.eqlis-sv input[data-comp]' ).each( function () {
				if ( $( this ).attr( 'data-comp' ) !== 'svVoid' ) {
					$( this ).prop( 'disabled', on );
				}
			} );
		}
		$totalCb.on( 'change', syncSvDisabled );
		syncSvDisabled();

		// Effects bonus
		var $eff = el( 'div', { 'class': 'eqlis-field' } );
		$eff.append( el( 'label', null, 'Effect score bonus (flat): ' ) );
		EFFECT_TYPES.forEach( function ( t ) {
			$eff.append( document.createTextNode( ' ' + t + ' ' ) );
			$eff.append( el( 'input', { type: 'number', 'data-effbonus': t, value: state.effectBonus[ t ], 'class': 'eqlis-num' } ) );
		} );
		$score.append( $eff );
		$controls.append( $score );

		// Column toggles
		var $cols = el( 'div', { 'class': 'eqlis-field eqlis-colbox' } );
		$cols.append( el( 'div', { 'class': 'eqlis-legend' }, 'Columns' ) );
		COLUMNS.forEach( function ( c ) {
			if ( c.always ) { return; }
			var $lab = el( 'label', { 'class': 'eqlis-check' } );
			var $cb = el( 'input', { type: 'checkbox', 'data-col': c.key } );
			if ( state.columns[ c.key ] ) { $cb.prop( 'checked', true ); }
			$lab.append( $cb ).append( document.createTextNode( ' ' + c.label + ( c.enrich ? ' *' : '' ) ) );
			$cols.append( $lab );
		} );
		$controls.append( $cols );

		$root.append( $controls );

		// List Results button + status + results container
		var $btn = el( 'button', { type: 'button', 'class': 'eqlis-run' }, 'List Results' );
		var $status = el( 'div', { 'class': 'eqlis-status' } );
		var $results = el( 'div', { 'class': 'eqlis-results' } );
		$root.append( $btn ).append( $status ).append( $results );

		// ---- read UI back into state ----
		function collect() {
			state.level = parseInt( $lvl.val(), 10 ) || 0;
			state.classes = [ 0, 1, 2 ].map( function ( i ) {
				return $( '#eqlis-class-' + i ).val() || '';
			} );
			state.slots = readMulti( $( '#eqlis-slots' ) );
			state.weaponTypes = readMulti( $( '#eqlis-wtypes' ) );
			state.zones = readMulti( $( '#eqlis-zones' ) );
			state.minLevel = parseInt( $( '#eqlis-minlvl' ).val(), 10 ) || 1;
			state.maxLevel = parseInt( $( '#eqlis-maxlvl' ).val(), 10 ) || 100;
			$score.find( 'input[data-comp]' ).each( function () {
				state.components[ $( this ).attr( 'data-comp' ) ] = $( this ).prop( 'checked' );
			} );
			$eff.find( 'input[data-effbonus]' ).each( function () {
				state.effectBonus[ $( this ).attr( 'data-effbonus' ) ] = parseFloat( $( this ).val() ) || 0;
			} );
			$cols.find( 'input[data-col]' ).each( function () {
				state.columns[ $( this ).attr( 'data-col' ) ] = $( this ).prop( 'checked' );
			} );
			saveState( state );
		}

		// persist on any change WITHOUT fetching (List Results gates fetch)
		$controls.on( 'change input', function () { collect(); } );

		var lastItems = null;

		function render() {
			if ( !lastItems ) { return; }
			var built = buildResultsTable( lastItems, state );
			$results.empty().append(
				el( 'div', { 'class': 'eqlis-count' }, built.count + ' items (of ' + lastItems.length + ' fetched) — sorted by score' )
			).append( built.$table );
			// let the wiki instrument popovers + item-level sliders inside results
			if ( mw.hook ) { mw.hook( 'wikipage.content' ).fire( $results ); }
			if ( window.eqlItemLevelSliderRefresh ) { window.eqlItemLevelSliderRefresh( $results[ 0 ] ); }
			if ( mw.loader ) {
				mw.loader.using( [ 'jquery.tablesorter' ] ).then( function () {
					try { $results.find( 'table.sortable' ).tablesorter(); } catch ( e ) {}
				} );
			}
		}

		$btn.on( 'click', function () {
			collect();
			var sel = state.classes.filter( Boolean );
			if ( !sel.length ) {
				$status.text( 'Select at least one class.' ).addClass( 'eqlis-err' );
				return;
			}
			$status.removeClass( 'eqlis-err' ).text( 'Loading…' );
			$btn.prop( 'disabled', true );
			ACTIVE_DATASOURCE.fetchItems( { classes: state.classes, slots: state.slots } )
				.then( function ( items ) {
					lastItems = items;
					$status.text( '' );
					render();
				}, function ( e ) {
					$status.text( 'Load failed: ' + ( e && e.message ? e.message : 'unknown error' ) ).addClass( 'eqlis-err' );
				} )
				.always( function () { $btn.prop( 'disabled', false ); } );
		} );

		// re-render (no refetch) when scoring/columns change after a run
		$controls.on( 'change input', function () {
			if ( lastItems ) { render(); }
		} );
	}

	// ---- mount --------------------------------------------------------------

	function init( root ) {
		var host = ( root || document ).querySelector ?
			( root || document ).querySelector( '#' + MOUNT_ID ) :
			document.getElementById( MOUNT_ID );
		if ( !host || host.getAttribute( 'data-eqlis-ready' ) === '1' ) {
			return;
		}
		host.setAttribute( 'data-eqlis-ready', '1' );
		buildUI( $( host ), loadState() );
	}

	$( function () { init( document ); } );
	if ( mw.hook ) {
		mw.hook( 'wikipage.content' ).add( function ( $c ) {
			// don't recurse into our own results
			if ( $c && $c.closest && $c.closest( '.eqlis-results' ).length ) { return; }
			init( document );
		} );
	}

	window.eqlItemScoreInit = init;

}( jQuery, mediaWiki ) );