defmodule Onchain.MixProject do
  use Mix.Project

  @version "0.12.0"
  @source_url "https://github.com/ZenHive/onchain"

  def project do
    [
      app: :onchain,
      version: @version,
      # 1.18 floor inherited transitively from hieroglyph 1.6.0 (via cartouche),
      # whose encode path uses `Enum.sum_by/2` (Elixir 1.18+).
      elixir: "~> 1.18",
      start_permanent: Mix.env() == :prod,
      elixirc_paths: elixirc_paths(Mix.env()),
      aliases: aliases(),
      deps: deps(),
      dialyzer: dialyzer(),
      description: description(),
      package: package(),
      docs: docs(),
      source_url: @source_url
    ]
  end

  def cli do
    [
      preferred_envs: [
        "test.json": :test,
        "dialyzer.json": :dev
      ]
    ]
  end

  def application do
    [
      extra_applications: [:logger]
    ]
  end

  defp deps do
    [
      {:cartouche, "~> 0.6"},
      {:decimal, "~> 3.1.1"},
      # Three-segment on purpose (caps at < 0.13.0): descripex 0.12.0 changed
      # `short_name` in describe/1 output from atom to string at a *minor*
      # bump, which the previous `~> 0.11` would have absorbed silently. A 0.x
      # package that breaks on minor earns the tighter form; raise the cap
      # deliberately after reading its CHANGELOG.
      {:descripex, "~> 0.12.0"},
      {:jason, "~> 1.4"},
      {:nimble_options, "~> 1.0"},
      {:req, "~> 0.6"},
      {:telemetry, "~> 1.4"},
      # 0.5.0 is where `gun` rises to `~> 2.4` and thereby *requires* the fix for
      # GHSA-w4f7-4cxr-rv3c instead of merely permitting it; 0.6.0 is where
      # `descripex` narrows to `~> 0.12.0`, matching what this package now
      # declares directly. Three-segment (caps at < 0.7.0) because zen_websocket
      # has shipped two consecutive minors it labels breaking for consumers —
      # a two-segment `~> 0.5` would absorb the third one silently.
      {:zen_websocket, "~> 0.6.0"},

      # Dev/test tooling
      # Req.Test plug-based transport stubbing (req's :plug is optional);
      # tidewave (dev) also needs plug, so it spans :dev and :test.
      {:plug, "~> 1.17", only: [:dev, :test]},
      {:tidewave, "~> 0.6", only: :dev},
      {:bandit, "~> 1.0", only: :dev},
      {:ex_unit_json, "~> 0.6.0", only: [:dev, :test], runtime: false},
      {:dialyzer_json, "~> 0.2.0", only: [:dev, :test], runtime: false},
      {:styler, "~> 1.0", only: [:dev, :test], runtime: false},
      {:credo, "~> 1.7", only: [:dev, :test], runtime: false},
      {:dialyxir, "~> 1.4", only: [:dev, :test], runtime: false},
      {:doctor, "~> 0.23.0", only: [:dev, :test], runtime: false},
      {:sobelow, "~> 0.14.1", only: [:dev, :test], runtime: false},
      {:ex_doc, "~> 0.40.1", only: :dev, runtime: false},
      {:ex_dna, "~> 1.3", only: [:dev, :test], runtime: false},
      # Two-segment on purpose: the three-segment form was a redundant self-cap.
      # Resolution lands on 0.12.10 because reach 2.8.2 declares
      # `{:ex_ast, "~> 0.12.0"}`. That is a choice, not a wall -- `override:
      # true` gets past it (cartouche does) -- but the override is unmeasured:
      # ex_ast 0.13.0 made map patterns subset-matching, and reach's smell
      # checks are built on those patterns, so it could report fewer findings.
      {:ex_ast, "~> 0.12", only: [:dev, :test], runtime: false},
      # Two-segment on purpose: the previous `~> 2.7.1` was three-segment
      # (>= 2.7.1 and < 2.8.0) and blocked reach 2.8.x with no reason beyond
      # the way the bound was written.
      {:reach, "~> 2.8", only: [:dev, :test], runtime: false},
      {:boxart, "~> 0.3.3", only: [:dev, :test], runtime: false},
      {:mix_audit, "~> 2.1", only: [:dev, :test], runtime: false}
    ]
  end

  defp description do
    "Shared Ethereum/blockchain library for read (eth_call) and write (transaction signing) operations using cartouche."
  end

  defp package do
    [
      licenses: ["MIT"],
      links: %{"GitHub" => @source_url},
      # Ship only the JSON specs the lib reads at compile time — NOT the vendored
      # priv/specs/erigon-<sha>/ Go source tree (752K, dev-scraper input only,
      # regenerated by `mix onchain.scrape_erigon_methods` → erigon-methods.json).
      files: ~w(lib priv/specs/*.json .formatter.exs mix.exs README.md LICENSE CHANGELOG.md)
    ]
  end

  defp docs do
    [
      main: "Onchain",
      source_ref: "v#{@version}",
      source_url: @source_url
    ]
  end

  defp aliases do
    [
      tidewave: [
        "run --no-halt -e 'Agent.start(fn -> Bandit.start_link(plug: Tidewave, port: 4007) end)'"
      ],
      # Fast local pre-commit loop — skips the cold-PLT dialyzer and the coverage
      # pass so it stays quick on incremental edits.
      precommit: [
        "compile --warnings-as-errors",
        "format --check-formatted",
        "credo --strict --ignore Credo.Check.Design.TagTODO,Credo.Check.Design.TagFIXME",
        "ex_dna --max-clones 0",
        # `preferred_envs` (cli/0) is ignored for alias steps — set MIX_ENV via
        # `env` (Elixir 1.20's `mix cmd` no longer parses a leading VAR=val prefix).
        "cmd env MIX_ENV=test mix test.json --exclude integration"
      ],
      # Comprehensive gate — the harness reviewer's `check_command` and `mix ci`
      # target. Coverage floor 70 matches the family convention already encoded
      # in .github/workflows/harness.yml (measured baseline: 79.04%). reach's
      # analysis scope (see .reach.exs) includes the `dev` root in addition to
      # `lib`/`src` — do not narrow it.
      "precommit.full": [
        "compile --warnings-as-errors",
        "format --check-formatted",
        "credo --strict --ignore Credo.Check.Design.TagTODO,Credo.Check.Design.TagFIXME",
        "doctor --raise",
        "ex_dna --max-clones 0",
        "reach.check --arch --smells",
        "sobelow --skip",
        "deps.audit.gated",
        "cmd env MIX_ENV=test mix test.json --cover --cover-threshold 70 --summary-only --exclude integration",
        "dialyzer",
        # AGENTS.md is what the cross-family (codex/cursor/grok) reviewers read;
        # a stale render makes them gate against rules that already changed.
        "agents.check"
      ],
      # mix_audit discards its sync exit status (mirego/mix_audit#61), so a
      # frozen advisory DB still reports green. Prove freshness first, then
      # audit. `deps.audit` reports the gun/GHSA-w4f7-4cxr-rv3c false positive
      # (see .mix_audit_ignore for the verified rationale) — ignore-file scoped.
      "deps.audit.gated": [
        &advisory_freshness/1,
        "deps.audit --ignore-file .mix_audit_ignore"
      ],
      # Fails when AGENTS.md has drifted from CLAUDE.md. Compares rendered
      # output, not mtimes, so drift in a transitive @-import is caught too.
      "agents.check": [
        &agents_check/1
      ],
      ci: ["precommit.full"]
    ]
  end

  defp elixirc_paths(:dev), do: ["lib", "dev"]
  defp elixirc_paths(:test), do: ["lib", "dev", "test/support"]
  defp elixirc_paths(_), do: ["lib"]

  defp dialyzer do
    [
      # OOM mitigation: skip transitive deps (default is :app_tree).
      # Tidewave/bandit's HTTP stack (plug, finch, mint, gun, cowlib, etc.)
      # is not in lib/'s call graph and bloats PLT to ~800 modules.
      plt_add_deps: :apps_direct,
      plt_add_apps: [:ex_unit, :mix, :hieroglyph, :curvy],
      plt_local_path: "priv/plts",
      plt_core_path: "priv/plts"
    ]
  end

  # Both gates below shell out to scripts that live OUTSIDE this repo, on the
  # developer host: the AGENTS.md renderer needs the claude-marketplace
  # checkout plus ~/.claude/includes, and the advisory-freshness prover needs
  # the local mix_audit mirror. Neither exists on a CI runner, and `mix cmd`
  # with an absent path exits non-zero — which aborted the whole `mix ci`
  # alias, and since these steps precede test.json/dialyzer it took the test,
  # coverage and dialyzer signal down with it. Skip loudly when the script is
  # absent so CI keeps running the checks it CAN run; the developer host and
  # the harness reviewer still get the full gate.
  @spec agents_check([String.t()]) :: :ok
  defp agents_check(_args) do
    host_script(
      "~/_DATA/code/claude-marketplace/scripts/sync-agents-md.sh",
      ["--check"],
      "AGENTS.md freshness check"
    )
  end

  @spec advisory_freshness([String.t()]) :: :ok
  defp advisory_freshness(_args) do
    host_script(
      "~/_DATA/code/onchain-stack/bin/advisory-freshness.sh",
      [],
      "advisory-mirror freshness check"
    )
  end

  @spec host_script(String.t(), [String.t()], String.t()) :: :ok
  defp host_script(path, args, label) do
    expanded = Path.expand(path)

    if File.exists?(expanded) do
      {_out, status} =
        System.cmd(expanded, args, into: IO.stream(:stdio, :line), stderr_to_stdout: true)

      if status != 0 do
        Mix.raise("#{label} failed (#{expanded} exited #{status})")
      end
    else
      Mix.shell().info("[skip] #{label}: #{expanded} not found (developer-host script, absent in CI).")
    end

    :ok
  end
end