import * as Effect from "effect/Effect";
import * as Binding from "../../Binding.ts";
import * as Output from "../../Output.ts";
import { isBindingHost } from "../Lambda/Function.ts";
import type { Project } from "./Project.ts";
import type { ReportGroup } from "./ReportGroup.ts";

/**
 * Shared scaffolding for AWS CodeBuild HTTP bindings.
 *
 * NOT exported from `index.ts` — every `{Op}Http.ts` in this service is a
 * thin `Layer.effect(Cap, make…HttpBinding({ … }))` over one of the builders
 * below. Everything except the operation, the IAM action, and (for
 * name-injecting operations) the injected `projectName`/`reportGroupArn` is
 * boilerplate.
 *
 * CodeBuild authorizes builds, batch builds, sandboxes, and cache operations
 * against the *project* ARN, and report operations against the
 * *report-group* ARN — even when the request addresses a build/report id —
 * so every builder grants on the bound resource's ARN.
 */

/**
 * Build the impl Effect for an operation whose input carries a
 * `projectName` field: the runtime callable injects the bound
 * {@link Project}'s name and the deploy-time half grants `actions` on the
 * project ARN.
 */
export const makeCodeBuildProjectNameHttpBinding = <
  I extends { projectName?: string },
  A,
  E,
  R,
>(options: {
  /** Fully-qualified binding tag, e.g. `AWS.CodeBuild.StartBuildBatch`. */
  tag: string;
  /** The distilled operation; `projectName` is injected from the project. */
  operation: Effect.Effect<(input: I) => Effect.Effect<A, E>, never, R>;
  /** IAM actions granted on the project ARN. */
  actions: readonly string[];
}) =>
  Effect.gen(function* () {
    const op = yield* options.operation;

    return Effect.fn(function* <P extends Project>(project: P) {
      // Outputs yield a DEFERRED effect — resolve again per invocation below.
      const ProjectName = yield* project.projectName;
      if (!globalThis.__ALCHEMY_RUNTIME__) {
        const host = yield* Binding.Host;
        if (isBindingHost(host)) {
          yield* host.bind`Allow(${host}, ${options.tag}(${project}))`({
            policyStatements: [
              {
                Effect: "Allow",
                Action: [...options.actions],
                Resource: [Output.interpolate`${project.projectArn}`],
              },
            ],
          });
        }
      }
      return Effect.fn(`${options.tag}(${project.LogicalId})`)(function* (
        request?: Omit<I, "projectName">,
      ) {
        return yield* op({
          ...request,
          projectName: yield* ProjectName,
        } as I);
      });
    });
  });

/**
 * Build the impl Effect for a project-anchored operation whose input
 * addresses builds/batches/sandboxes by id: the request passes through
 * as-is and the deploy-time half grants `actions` on the project ARN
 * (CodeBuild authorizes build-/batch-addressed operations against the
 * project the id belongs to). Sandbox-addressed actions authorize against
 * the *sandbox* ARN (`…:sandbox/{project-name}:{uuid}`) — set
 * `sandboxScoped` to additionally grant on the project's sandbox pattern.
 */
export const makeCodeBuildProjectHttpBinding = <I, A, E, R>(options: {
  /** Fully-qualified binding tag, e.g. `AWS.CodeBuild.StopBuild`. */
  tag: string;
  /** The distilled operation, invoked with the caller's request as-is. */
  operation: Effect.Effect<(input: I) => Effect.Effect<A, E>, never, R>;
  /** IAM actions granted on the project ARN. */
  actions: readonly string[];
  /** Also grant on `…:sandbox/{project-name}:*` (sandbox-addressed actions). */
  sandboxScoped?: boolean;
}) =>
  Effect.gen(function* () {
    const op = yield* options.operation;

    return Effect.fn(function* <P extends Project>(project: P) {
      if (!globalThis.__ALCHEMY_RUNTIME__) {
        const host = yield* Binding.Host;
        if (isBindingHost(host)) {
          yield* host.bind`Allow(${host}, ${options.tag}(${project}))`({
            policyStatements: [
              {
                Effect: "Allow",
                Action: [...options.actions],
                Resource: [
                  Output.interpolate`${project.projectArn}`,
                  ...(options.sandboxScoped
                    ? [
                        Output.map(
                          project.projectArn,
                          (arn) => `${arn.replace(":project/", ":sandbox/")}:*`,
                        ),
                      ]
                    : []),
                ],
              },
            ],
          });
        }
      }
      return Effect.fn(`${options.tag}(${project.LogicalId})`)(function* (
        request: I,
      ) {
        return yield* op(request);
      });
    });
  });

/**
 * Build the impl Effect for an operation whose input carries a
 * `reportGroupArn` field: the runtime callable injects the bound
 * {@link ReportGroup}'s ARN and the deploy-time half grants `actions` on
 * the report-group ARN.
 */
export const makeCodeBuildReportGroupArnHttpBinding = <
  I extends { reportGroupArn?: string },
  A,
  E,
  R,
>(options: {
  /** Fully-qualified binding tag, e.g. `AWS.CodeBuild.GetReportGroupTrend`. */
  tag: string;
  /** The distilled operation; `reportGroupArn` is injected from the group. */
  operation: Effect.Effect<(input: I) => Effect.Effect<A, E>, never, R>;
  /** IAM actions granted on the report-group ARN. */
  actions: readonly string[];
}) =>
  Effect.gen(function* () {
    const op = yield* options.operation;

    return Effect.fn(function* <G extends ReportGroup>(reportGroup: G) {
      const ReportGroupArn = yield* reportGroup.reportGroupArn;
      if (!globalThis.__ALCHEMY_RUNTIME__) {
        const host = yield* Binding.Host;
        if (isBindingHost(host)) {
          yield* host.bind`Allow(${host}, ${options.tag}(${reportGroup}))`({
            policyStatements: [
              {
                Effect: "Allow",
                Action: [...options.actions],
                Resource: [Output.interpolate`${reportGroup.reportGroupArn}`],
              },
            ],
          });
        }
      }
      return Effect.fn(`${options.tag}(${reportGroup.LogicalId})`)(function* (
        request?: Omit<I, "reportGroupArn">,
      ) {
        return yield* op({
          ...request,
          reportGroupArn: yield* ReportGroupArn,
        } as I);
      });
    });
  });

/**
 * Build the impl Effect for a report-group-anchored operation whose input
 * addresses reports by ARN: the request passes through as-is and the
 * deploy-time half grants `actions` on the report-group ARN (CodeBuild
 * authorizes report operations against the report group the report belongs
 * to).
 */
export const makeCodeBuildReportGroupHttpBinding = <I, A, E, R>(options: {
  /** Fully-qualified binding tag, e.g. `AWS.CodeBuild.DescribeTestCases`. */
  tag: string;
  /** The distilled operation, invoked with the caller's request as-is. */
  operation: Effect.Effect<(input: I) => Effect.Effect<A, E>, never, R>;
  /** IAM actions granted on the report-group ARN. */
  actions: readonly string[];
}) =>
  Effect.gen(function* () {
    const op = yield* options.operation;

    return Effect.fn(function* <G extends ReportGroup>(reportGroup: G) {
      if (!globalThis.__ALCHEMY_RUNTIME__) {
        const host = yield* Binding.Host;
        if (isBindingHost(host)) {
          yield* host.bind`Allow(${host}, ${options.tag}(${reportGroup}))`({
            policyStatements: [
              {
                Effect: "Allow",
                Action: [...options.actions],
                Resource: [Output.interpolate`${reportGroup.reportGroupArn}`],
              },
            ],
          });
        }
      }
      return Effect.fn(`${options.tag}(${reportGroup.LogicalId})`)(function* (
        request: I,
      ) {
        return yield* op(request);
      });
    });
  });