stores: add partyStore for character/weapon updates

src/lib/stores/partyStore.svelte.ts

@@ -0,0 +1,110 @@
+import type { Party, GridCharacter, GridWeapon, GridSummon } from '$lib/types/api/party'
+import { gridAdapter } from '$lib/api/adapters/grid.adapter'
+
+/**
+ * Global party store for reactive access to party data
+ * Used to bridge party data between the Party component and components rendered outside the party context (like DetailsSidebar)
+ */
+class PartyStore {
+	party = $state<Party | null>(null)
+
+	setParty(party: Party | null) {
+		this.party = party
+	}
+
+	get shortcode(): string | undefined {
+		return this.party?.shortcode
+	}
+
+	getCharacter(id: string | number): GridCharacter | undefined {
+		return this.party?.characters?.find((c) => String(c.id) === String(id))
+	}
+
+	getWeapon(id: string | number): GridWeapon | undefined {
+		return this.party?.weapons?.find((w) => String(w.id) === String(id))
+	}
+
+	getSummon(id: string | number): GridSummon | undefined {
+		return this.party?.summons?.find((s) => String(s.id) === String(id))
+	}
+
+	getItem(
+		type: 'character' | 'weapon' | 'summon',
+		id: string | number
+	): GridCharacter | GridWeapon | GridSummon | undefined {
+		switch (type) {
+			case 'character':
+				return this.getCharacter(id)
+			case 'weapon':
+				return this.getWeapon(id)
+			case 'summon':
+				return this.getSummon(id)
+		}
+	}
+
+	/**
+	 * Update a character in the party (optimistically updates local state and calls API)
+	 */
+	async updateCharacter(id: string, updates: Partial<GridCharacter>): Promise<GridCharacter> {
+		// Optimistically update local state
+		if (this.party?.characters) {
+			this.party = {
+				...this.party,
+				characters: this.party.characters.map((c) =>
+					String(c.id) === String(id) ? { ...c, ...updates } : c
+				)
+			}
+		}
+
+		// Call API
+		const updated = await gridAdapter.updateCharacter(id, updates)
+
+		// Update with server response
+		if (this.party?.characters) {
+			this.party = {
+				...this.party,
+				characters: this.party.characters.map((c) =>
+					String(c.id) === String(id) ? updated : c
+				)
+			}
+		}
+
+		return updated
+	}
+
+	/**
+	 * Update a weapon in the party (optimistically updates local state and calls API)
+	 */
+	async updateWeapon(id: string, updates: Partial<GridWeapon>): Promise<GridWeapon> {
+		// Optimistically update local state
+		if (this.party?.weapons) {
+			this.party = {
+				...this.party,
+				weapons: this.party.weapons.map((w) =>
+					String(w.id) === String(id) ? { ...w, ...updates } : w
+				)
+			}
+		}
+
+		// Call API
+		const updated = await gridAdapter.updateWeapon(id, updates)
+
+		// Update with server response
+		if (this.party?.weapons) {
+			this.party = {
+				...this.party,
+				weapons: this.party.weapons.map((w) =>
+					String(w.id) === String(id) ? updated : w
+				)
+			}
+		}
+
+		return updated
+	}
+
+	clear() {
+		this.party = null
+	}
+}
+
+export const partyStore = new PartyStore()