// @ts-check

import { query } from '../db/client.js'

/** @typedef {import('../types/repository-rows.js').TaskInventoryBindingRow} TaskInventoryBindingRow */
/** @typedef {import('../types/repository-rows.js').TaskInventoryBindingSummaryRow} TaskInventoryBindingSummaryRow */

/** @returns {Promise<TaskInventoryBindingRow[]>} */
export async function listTaskInventoryBindingsByTaskId(taskId) {
  const result = await query(
    `
      SELECT
        tib.id,
        tib.task_id,
        tib.inventory_item_id,
        tib.role_key,
        tib.quantity,
        tib.binding_status,
        tib.consumed_at,
        tib.released_at,
        tib.metadata_json,
        tib.created_at,
        tib.updated_at,
        ii.sku_code,
        ii.batch_no,
        ii.credential_type,
        ii.inventory_group_code,
        ii.display_value,
        ii.status AS inventory_item_status,
        ii.invalid_reason
      FROM task_inventory_bindings tib
      JOIN inventory_items ii ON ii.id = tib.inventory_item_id
      WHERE tib.task_id = $1
      ORDER BY tib.id ASC
    `,
    [Number(taskId)],
  )

  return /** @type {TaskInventoryBindingRow[]} */ (result.rows)
}

/** @returns {Promise<TaskInventoryBindingRow | null>} */
export async function getTaskInventoryBindingById(bindingId) {
  const result = await query(
    `
      SELECT
        tib.id,
        tib.task_id,
        tib.inventory_item_id,
        tib.role_key,
        tib.quantity,
        tib.binding_status,
        tib.consumed_at,
        tib.released_at,
        tib.metadata_json,
        tib.created_at,
        tib.updated_at,
        ii.sku_code,
        ii.batch_no,
        ii.credential_type,
        ii.inventory_group_code,
        ii.display_value,
        ii.status AS inventory_item_status,
        ii.invalid_reason
      FROM task_inventory_bindings tib
      JOIN inventory_items ii ON ii.id = tib.inventory_item_id
      WHERE tib.id = $1
      LIMIT 1
    `,
    [Number(bindingId)],
  )

  return /** @type {TaskInventoryBindingRow | null} */ (result.rows[0] || null)
}

/** @returns {Promise<TaskInventoryBindingSummaryRow[]>} */
export async function listTaskInventoryBindingSummariesByTaskIds(taskIds = []) {
  const normalizedTaskIds = Array.from(new Set((Array.isArray(taskIds) ? taskIds : [])
    .map((value) => Number(value))
    .filter((value) => Number.isFinite(value) && value > 0)))

  if (normalizedTaskIds.length === 0) {
    return []
  }

  const result = await query(
    `
      SELECT
        tib.task_id,
        COUNT(*)::int AS total_binding_count,
        COUNT(*) FILTER (WHERE tib.binding_status = 'reserved')::int AS reserved_binding_count,
        COUNT(*) FILTER (WHERE tib.binding_status = 'consumed')::int AS consumed_binding_count,
        COUNT(*) FILTER (WHERE tib.binding_status = 'released')::int AS released_binding_count,
        ARRAY_AGG(DISTINCT tib.role_key ORDER BY tib.role_key) AS role_keys
      FROM task_inventory_bindings tib
      WHERE tib.task_id = ANY($1::bigint[])
      GROUP BY tib.task_id
    `,
    [normalizedTaskIds],
  )

  return /** @type {TaskInventoryBindingSummaryRow[]} */ (result.rows)
}