# ==================================================================================================================== #
# Authors:                                                                                                             #
#   Patrick Lehmann                                                                                                    #
#   Unai Martinez-Corral                                                                                               #
#                                                                                                                      #
# ==================================================================================================================== #
# Copyright 2020-2022 The pyTooling Authors                                                                            #
#                                                                                                                      #
# Licensed under the Apache License, Version 2.0 (the "License");                                                      #
# you may not use this file except in compliance with the License.                                                     #
# You may obtain a copy of the License at                                                                              #
#                                                                                                                      #
#   http://www.apache.org/licenses/LICENSE-2.0                                                                         #
#                                                                                                                      #
# Unless required by applicable law or agreed to in writing, software                                                  #
# distributed under the License is distributed on an "AS IS" BASIS,                                                    #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.                                             #
# See the License for the specific language governing permissions and                                                  #
# limitations under the License.                                                                                       #
#                                                                                                                      #
# SPDX-License-Identifier: Apache-2.0                                                                                  #
# ==================================================================================================================== #
name: Parameters

on:
  workflow_call:
    inputs:
      name:
        description: 'Name of the tool.'
        required: true
        type: string
      python_version:
        description: 'Python version.'
        required: false
        default: '3.11'
        type: string
      python_version_list:
        description: 'Space separated list of Python versions to run tests with.'
        required: false
        default: '3.7 3.8 3.9 3.10 3.11'
        type: string
      system_list:
        description: 'Space separated list of systems to run tests on.'
        required: false
        default: 'ubuntu windows mingw64 macos'
        type: string
      include_list:
        description: 'Space separated list of system:python items to be included into the list of test.'
        required: false
        default: ''
        type: string
      exclude_list:
        description: 'Space separated list of system:python items to be excluded from the list of test.'
        required: false
        default: ''
        type: string
      disable_list:
        description: 'Space separated list of system:python items to be disabled from the list of test.'
        required: false
        default: ''
        type: string

    outputs:
      python_version:
        description: "Default Python version for other jobs."
        value: ${{ jobs.Parameters.outputs.python_version }}
      python_jobs:
        description: "List of Python versions (and system combinations) to be used in the matrix of other jobs."
        value: ${{ jobs.Parameters.outputs.python_jobs }}
      artifact_names:
        description: "Pre-defined artifact names for other jobs."
        value: ${{ jobs.Parameters.outputs.artifact_names }}
      params:
        description: "Parameters to be used in other jobs."
        value: ${{ jobs.Parameters.outputs.params }}

jobs:
  Parameters:
    runs-on: ubuntu-latest
    outputs:
      python_version:   ${{ steps.params.outputs.python_version }}
      python_jobs:      ${{ steps.params.outputs.python_jobs }}
      artifact_names:   ${{ steps.params.outputs.artifact_names }}
      params:           ${{ steps.params.outputs.params }}

    steps:
      - name: Generate 'params' and 'python_jobs'
        id: params
        shell: python
        run: |
          from json import dumps as json_dumps
          from os import getenv
          from pathlib import Path
          from pprint import pprint
          from textwrap import dedent

          name =           "${{ inputs.name }}".strip()
          python_version = "${{ inputs.python_version }}".strip()
          systems =        "${{ inputs.system_list }}".strip()
          versions =       "${{ inputs.python_version_list }}".strip()
          include_list =   "${{ inputs.include_list }}".strip()
          exclude_list =   "${{ inputs.exclude_list }}".strip()
          disable_list =   "${{ inputs.disable_list }}".strip()

          currentMSYS2Version = "3.10"
          currentAlphaVersion = "3.12"
          currentAlphaRelease = "3.12.0-alpha.1"

          if systems == "":
            print("::error title=Parameter::system_list is empty.")
          else:
            systems = [sys.strip() for sys in systems.split(" ")]

          if versions == "":
            versions = [ python_version ]
          else:
            versions = [ver.strip() for ver in versions.split(" ")]

          if include_list == "":
            includes = []
          else:
            includes = [tuple(include.strip().split(":")) for include in include_list.split(" ")]

          if exclude_list == "":
            excludes = []
          else:
            excludes = [exclude.strip() for exclude in exclude_list.split(" ")]

          if disable_list == "":
            disabled = []
          else:
            disabled = [disable.strip() for disable in disable_list.split(" ")]

          if "3.6" in versions:
            print("::warning title=Deprecated::Support for Python 3.6 ended in 2021.12.23.")
          if "msys2" in systems:
            print("::warning title=Deprecated::System 'msys2' will be replaced by 'mingw64'.")
          if currentAlphaVersion in versions:
            print(f"::notice title=Experimental::Python {currentAlphaVersion} ({currentAlphaRelease}) is a pre-release.")
          for disable in disabled:
            print(f"::warning title=Disabled Python Job::System '{disable}' temporary disabled.")

          data = {
            # Python and PyPy versions supported by "setup-python" action
            "python": {
              "3.6":       { "icon": "⚫",  "until": "2021.12.23" },
              "3.7":       { "icon": "🔴",  "until": "2023.06.27" },
              "3.8":       { "icon": "🟠",  "until": "2024.10" },
              "3.9":       { "icon": "🟡",  "until": "2025.10" },
              "3.10":      { "icon": "🟢",  "until": "2026.10" },
              "3.11":      { "icon": "🟢",  "until": "2027.10" },
              "3.12":      { "icon": "🟣",  "until": "2028.10" },
              "pypy-3.7":  { "icon": "⟲🔴", "until": "????.??" },
              "pypy-3.8":  { "icon": "⟲🟠", "until": "????.??" },
              "pypy-3.9":  { "icon": "⟲🟡", "until": "????.??" },
            },
            # Runner systems (runner images) supported by GitHub Actions
            "sys": {
              "ubuntu":  { "icon": "🐧", "runs-on": "ubuntu-latest",  "shell": "bash", "name": "Linux (x86-64)"   },
              "windows": { "icon": "🧊", "runs-on": "windows-latest", "shell": "pwsh", "name": "Windows (x86-64)" },
              "macos":   { "icon": "🍎", "runs-on": "macos-latest",   "shell": "bash", "name": "MacOS (x86-64)"   },
            },
            # Runtimes provided by MSYS2
            "runtime": {
              "msys":    { "icon": "🟪", "name": "Windows+MSYS2 (x86-64) - MSYS"    },
              "mingw32": { "icon": "⬛", "name": "Windows+MSYS2 (x86-64) - MinGW32" },
              "mingw64": { "icon": "🟦", "name": "Windows+MSYS2 (x86-64) - MinGW64" },
              "clang32": { "icon": "🟫", "name": "Windows+MSYS2 (x86-64) - Clang32" },
              "clang64": { "icon": "🟧", "name": "Windows+MSYS2 (x86-64) - Clang64" },
              "ucrt64":  { "icon": "🟨", "name": "Windows+MSYS2 (x86-64) - UCRT64"  },
            }
          }

          print(f"includes ({len(includes)}):")
          for system,version in includes:
            print(f"- {system}:{version}")
          print(f"excludes ({len(excludes)}):")
          for exclude in excludes:
            print(f"- {exclude}")
          print(f"disabled ({len(disabled)}):")
          for disable in disabled:
            print(f"- {disable}")

          combinations = [
            (system, version)
            for system in systems
              if system in data["sys"]
            for version in versions
              if version in data["python"]
              and f"{system}:{version}" not in excludes
              and f"{system}:{version}" not in disabled
          ] + [
            (system, currentMSYS2Version)
            for system in systems
              if system in data["runtime"]
              and f"{system}:{currentMSYS2Version}" not in excludes
              and f"{system}:{currentMSYS2Version}" not in disabled
          ] + [
            (system, version)
            for system, version in includes
              if system in data["sys"]
              and version in data["python"]
              and f"{system}:{version}" not in disabled
          ]
          print(f"Combinations ({len(combinations)}):")
          for system, version in combinations:
            print(f"- {system}:{version}")

          jobs = [
            {
              "sysicon": data["sys"][system]["icon"],
              "system":  system,
              "runs-on": data["sys"][system]["runs-on"],
              "shell":   data["sys"][system]["shell"],
              "pyicon":  data["python"][version]["icon"],
              "python":  currentAlphaRelease if version == currentAlphaVersion else version,
              "envname": data["sys"][system]["name"],
            }
            for system, version in combinations if system in data["sys"]
          ] + [
            {
              "sysicon": data["runtime"][runtime]["icon"],
              "system":  "msys2",
              "runs-on": "windows-latest",
              "runtime": runtime.upper(),
              "shell":   "msys2 {0}",
              "pyicon":  data["python"][currentMSYS2Version]["icon"],
              "python":  version,
              "envname": data["runtime"][runtime]["name"],
            }
            for runtime, version in combinations if runtime not in data["sys"]
          ]

          artifact_names = {
            "unittesting_xml":    f"{name}-TestReportSummary-XML",
            "codecoverage_xml":   f"{name}-CodeCoverage-XML",
            "codecoverage_html":  f"{name}-CodeCoverage-HTML",
            "statictyping_html":  f"{name}-StaticTyping-HTML",
            "package_all":        f"{name}-Packages",
            "documentation_pdf":  f"{name}-Documentation-PDF",
            "documentation_html": f"{name}-Documentation-HTML",
          }

          # Deprecated structure
          params = {
            "python_version": python_version,
            "artifacts": {
              "unittesting": f"{artifact_names['unittesting_xml']}",
              "coverage":    f"{artifact_names['codecoverage_html']}",
              "typing":      f"{artifact_names['statictyping_html']}",
              "package":     f"{artifact_names['package_all']}",
              "doc":         f"{artifact_names['documentation_html']}",
            }
          }

          print("Parameters:")
          print(f"  python_version: {python_version}")
          print(f"  python_jobs ({len(jobs)}):\n" +
            "".join([f"    {{ " + ", ".join([f"\"{key}\": \"{value}\"" for key, value in job.items()]) + f" }},\n" for job in jobs])
          )
          print(f"  artifact_names ({len(artifact_names)}):")
          for id, name in artifact_names.items():
            print(f"    {id:>20}: {name}")

          # Write jobs to special file
          github_output = Path(getenv("GITHUB_OUTPUT"))
          print(f"GITHUB_OUTPUT: {github_output}")
          with github_output.open("a+", encoding="utf-8") as f:
            f.write(dedent(f"""\
              python_version={python_version}
              python_jobs={json_dumps(jobs)}
              artifact_names={json_dumps(artifact_names)}
              params={json_dumps(params)}
          """))

      - name: Verify out parameters
        id: verify
        run: |
          echo 'python_version: ${{ steps.params.outputs.python_version }}'
          echo 'python_jobs: ${{ steps.params.outputs.python_jobs }}'
          echo 'artifact_names: ${{ steps.params.outputs.artifact_names }}'
          echo 'params: ${{ steps.params.outputs.params }}'