import {z} from 'zod'

export type BaselineScenarioID = string;

export type BusinessEntityID = string;

export type GetApiV1BaselineForecastsActivityProjectionsArgs = {baseline_scenario_id: BaselineScenarioID, business_entity_id?: BusinessEntityID | undefined, offset?: number | undefined, limit?: number | undefined};

export type GetApiV1BaselineForecastsActivityProjectionsOptions = {baseUrl?: string | undefined, OAuth2ClientCredentialsProduction?: string | undefined, fetch?: typeof fetch | undefined};

export const activityDataProjectionID = z.string();

export const baselineScenarioID = z.string();

export const businessEntityID = z.string();

export const emissionsSourceID = z.string();

export const emissionsSourceTypeID = z.string();

export const emissionsModelID = z.string();

export const activityTypeID = z.string();

export const activityType = z.string();

export const emissionsScope = z.union([z.literal(1), z.literal(2), z.literal(21), z.literal(22), z.literal(3), z.literal(-1)]);

export const year = z.string();

export const yearData = z.object({year: year, value: z.number()});

export const activityDataProjectionValueProjectionMethod = z.union([z.object({projectionMethod: z.literal("HISTORICAL_AVERAGE_GROWTH_RATE"), baseYear: year, historicalPeriodStart: year, historicalPeriodEnd: year}), z.object({projectionMethod: z.literal("HISTORICAL_AVERAGE_VALUE"), historicalPeriodStart: year, historicalPeriodEnd: year}), z.object({projectionMethod: z.literal("HISTORICAL_FIXED_VALUE"), baseYear: year}), z.object({projectionMethod: z.literal("CUSTOM_DATA"), yearlyValues: z.array(yearData)}), z.object({projectionMethod: z.literal("CUSTOM_GROWTH_RATE"), baseYear: year, customGrowthRate: z.number()}), z.object({projectionMethod: z.literal("CUSTOM_YEARLY_PERCENTAGE_CHANGES"), baseYear: year, yearlyValues: z.array(yearData)})]);

export const activityDataProjectionEmissionsProjectionMethod = z.union([z.object({projectionMethod: z.literal("HISTORICAL_AVERAGE_GROWTH_RATE"), baseYear: year, historicalPeriodStart: year, historicalPeriodEnd: year}), z.object({projectionMethod: z.literal("HISTORICAL_AVERAGE_VALUE"), historicalPeriodStart: year, historicalPeriodEnd: year}), z.object({projectionMethod: z.literal("HISTORICAL_FIXED_VALUE"), baseYear: year}), z.object({projectionMethod: z.literal("CUSTOM_DATA"), yearlyValues: z.array(yearData)}), z.object({projectionMethod: z.literal("CUSTOM_GROWTH_RATE"), baseYear: year, customGrowthRate: z.number()}), z.object({projectionMethod: z.literal("CUSTOM_YEARLY_PERCENTAGE_CHANGES"), baseYear: year, yearlyValues: z.array(yearData)})]);

export const unit = z.string();

export const emissionsFactorOverride = z.object({key: z.string(), value: z.number(), unit: unit});

export const secondaryActivityValueOverride = z.object({displayName: z.string(), key: z.string(), value: z.number(), unit: unit});

export const activityDataProjectionConfig = z.object({id: activityDataProjectionID, scenarioID: baselineScenarioID, processID: businessEntityID, emissionsSourceID: emissionsSourceID, emissionsSourceTypeID: emissionsSourceTypeID, emissionsModelID: emissionsModelID, activityTypeID: activityTypeID, activityType: activityType, scope: emissionsScope, startYear: year, endYear: year, valueProjectionMethod: activityDataProjectionValueProjectionMethod, emissionsProjectionMethod: activityDataProjectionEmissionsProjectionMethod, emissionsFactorsOverrides: z.array(emissionsFactorOverride), secondaryActivityValueOverrides: z.array(secondaryActivityValueOverride)});

export const activityDataProjectionData = z.object({id: activityDataProjectionID, processID: businessEntityID, emissionsSourceID: emissionsSourceID, emissionsSourceTypeID: emissionsSourceTypeID, emissionsModelID: emissionsModelID, activityTypeID: activityTypeID, activityType: activityType, scope: emissionsScope, startYear: year, endYear: year, serverUnit: unit, displayUnit: unit, emissionsUnit: unit, secondaryActivityValues: z.array(yearData), historicalActivityValues: z.array(yearData), projectedActivityValues: z.array(yearData), historicalScopeEmissions: z.array(yearData), projectedScopeEmissions: z.array(yearData), historicalBioCO2Emissions: z.array(yearData), projectedBioCO2Emissions: z.array(yearData)});

export const activityDataProjection = z.object({config: activityDataProjectionConfig, projection: activityDataProjectionData});

export const paginationResult = z.object({offset: z.number().int(), limit: z.number().int(), total: z.number().int(), hasMore: z.boolean(), nextOffset: z.number().int().nullable().optional(), previousOffset: z.number().int().nullable().optional()});

export const getApiV1BaselineForecastsActivityProjectionsResponse = z.object({projections: z.array(activityDataProjection).optional(), pagination: paginationResult.optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Get activity projections
 * 
 * GET /v1/baseline_forecasts/activity_projections
 * 
 * Also accepts auth: OAuth2AuthCodeProduction
 */
export const getApiV1BaselineForecastsActivityProjections = async (args: GetApiV1BaselineForecastsActivityProjectionsArgs, options?: GetApiV1BaselineForecastsActivityProjectionsOptions) => {
const {baseUrl = "https://api.sinai.com", fetch: fetchFn = fetch, OAuth2ClientCredentialsProduction} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.baseline_scenario_id != null) query.append("baseline_scenario_id", String(args.baseline_scenario_id))
if (args.business_entity_id != null) query.append("business_entity_id", String(args.business_entity_id))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.limit != null) query.append("limit", String(args.limit))
if (OAuth2ClientCredentialsProduction !== undefined) headers.set('authorization', `Bearer ${OAuth2ClientCredentialsProduction}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/baseline_forecasts/activity_projections${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiV1BaselineForecastsActivityProjectionsResponse, await res.json())
};