// Canonical solfeggio id <- Hz, mirroring the kiosk's `frequencyIdForHz()`
// map (radiantwave-rebuild src/audio/audio_downloader.cpp). v2 must emit these
// canonical ids (1-9), never the portal DB autoincrement ids, because
// proclamations and color palettes on the kiosk are keyed by them.
export const CANONICAL_ID_FOR_HZ: Record<number, number> = {
	174: 1,
	285: 1,
	396: 2,
	417: 3,
	432: 4,
	528: 5,
	639: 6,
	741: 7,
	852: 8,
	963: 9
};

// The 9 canonical frequencies exactly as the kiosk expects from
// GET /frequencies (id 1-9, non-zero, `value` recognized by frequencyIdForHz).
export const CANONICAL_FREQUENCIES: { id: number; name: string; value: number }[] = [
	{ id: 1, name: 'Grounding / Relief', value: 174 },
	{ id: 2, name: 'Root', value: 396 },
	{ id: 3, name: 'Sacral', value: 417 },
	{ id: 4, name: 'Clarity / Wellbeing', value: 432 },
	{ id: 5, name: 'Solar Plexus', value: 528 },
	{ id: 6, name: 'Heart', value: 639 },
	{ id: 7, name: 'Throat', value: 741 },
	{ id: 8, name: '3rd Eye', value: 852 },
	{ id: 9, name: 'Crown', value: 963 }
];

// Seed palettes per canonical id, matching the kiosk's
// DatabaseManager::seedColorPalettes(). Used to backfill /color-palettes
// when the DB has not been seeded for an id yet.
export const CANONICAL_PALETTES: Record<number, string[]> = {
	1: ['#8B6914', '#B8860B', '#DAA520', '#E8B64C', '#FFD700', '#FFE9A8', '#FFF4CC'],
	2: ['#8B0000', '#B22222', '#DC143C', '#FF6347', '#FF8C69', '#FFA500', '#FFDAB9'],
	3: ['#FF4500', '#FF7F50', '#FF8C00', '#FFA500', '#FFC87F', '#FFDFBA', '#FFEBCD'],
	4: ['#8B2252', '#CD3278', '#DB7093', '#FF69B4', '#FFB6C1', '#FFC0CB', '#FFE4E1'],
	5: ['#32CD32', '#3CB371', '#90EE90', '#98FB98', '#ADFFA9', '#C8FFD2', '#F0FFF0'],
	6: ['#00FF7F', '#00CED1', '#40E0D0', '#5F9EA0', '#7FFFD4', '#AFEEEE', '#E0FFFF'],
	7: ['#00BFFF', '#1E90FF', '#4169E1', '#6495ED', '#87CEEB', '#ADD8E6', '#F0F8FF'],
	8: ['#4B0082', '#9370DB', '#8A2BE2', '#7B68EE', '#DA70D6', '#D8BFD8', '#E6E6FA'],
	9: ['#9400D3', '#BA55D3', '#C71585', '#DDA0DD', '#EE82EE', '#FFF0F5', '#FAF0FA']
};

/** Map a SolfeggioFrequency row to its canonical id, or null if it has no
 * canonical id (e.g. 936 Hz). */
export function canonicalIdForFrequency(freq: { value: number }): number | null {
	return CANONICAL_ID_FOR_HZ[freq.value] ?? null;
}

export type V2Proclamation = {
	id: string;
	name: string;
	content: string;
	categoryId: number;
	groupId: number;
	solfeggioFrequencyId: number;
	colorPalette?: string[];
};

export type ProclamationWithFrequency = {
	id: string;
	name: string;
	content: string;
	categoryId: number;
	groupId: number;
	solfeggioFrequency: { value: number };
};

/** Serialize a DB proclamation row to the v2 wire format. Returns null when
 * the proclamation's frequency has no canonical id (dropped from v2). */
export function serializeProclamation(
	p: ProclamationWithFrequency,
	palette?: string[]
): V2Proclamation | null {
	const solfeggioFrequencyId = CANONICAL_ID_FOR_HZ[p.solfeggioFrequency.value];
	if (!solfeggioFrequencyId) return null;

	const record: V2Proclamation = {
		id: p.id,
		name: p.name,
		content: p.content,
		categoryId: p.categoryId,
		groupId: p.groupId,
		solfeggioFrequencyId
	};

	if (palette && palette.length > 0) {
		record.colorPalette = palette;
	}

	return record;
}

export type V2Category = {
	id: number;
	name: string;
	sortOrder: number;
};

export function serializeCategory(c: { id: number; name: string; sortOrder: number }): V2Category {
	return { id: c.id, name: c.name, sortOrder: c.sortOrder };
}

export type V2Group = {
	id: number;
	name: string;
	sortOrder: number;
};

export function serializeGroup(g: { id: number; name: string; sortOrder: number }): V2Group {
	return { id: g.id, name: g.name, sortOrder: g.sortOrder };
}

export type V2License = {
	key: string;
	email_address: string;
};

/** Build the POST /license response. */
export function serializeLicense(opts: { key: string; emailAddress: string }): V2License {
	return {
		key: opts.key,
		email_address: opts.emailAddress
	};
}

export type V2ColorPalette = {
	solfeggioFrequencyId: number;
	colors: string[];
};

export function serializeColorPalette(palette: {
	solfeggioFrequencyId: number;
	colors: string[];
}): V2ColorPalette {
	return { solfeggioFrequencyId: palette.solfeggioFrequencyId, colors: palette.colors };
}