import vue from 'eslint-plugin-vue';
import eslint from '@eslint/js';
import globals from 'globals';
import typescript from '@typescript-eslint/eslint-plugin';
import stylistic from '@stylistic/eslint-plugin';
import tseslint from 'typescript-eslint';

const style = {
    'plugins': {
        '@stylistic': stylistic,
        '@stylistic/js': stylistic,
        '@stylistic/ts': stylistic,
    },
    'files': [ '**/*.ts', '**/*.js', '**/*.tsx', '**/*.jsx' ],
    'rules': {
        // Formatting
        '@stylistic/array-bracket-newline': ['error', { 'multiline': true, 'minItems': 2 }],
        '@stylistic/array-bracket-spacing': ['error', 'always'],
        '@stylistic/array-element-newline': ['error', { 'multiline': true, 'minItems': 2 }],
        '@stylistic/arrow-parens': ['error', 'as-needed'],
        '@stylistic/arrow-spacing': ['error', { 'before': true, 'after': true }],
        '@stylistic/block-spacing': ['error', 'always'],
        '@stylistic/brace-style': ['error', '1tbs'],
        '@stylistic/comma-spacing': ['error', { 'before': false, 'after': true }],
        '@stylistic/comma-style': ['error', 'last'],
        '@stylistic/dot-location': ['error', 'property'],
        '@stylistic/eol-last': ['error', 'always'],
        '@stylistic/function-call-spacing': ['error', 'never'],
        '@stylistic/implicit-arrow-linebreak': ['error', 'beside'],
        '@stylistic/indent': ['error', 4],
        '@stylistic/key-spacing': ['error', { 'beforeColon': false, 'afterColon': true }],
        '@stylistic/keyword-spacing': ['error', { 'before': true, 'after': true }],
        '@stylistic/lines-between-class-members': ['error', 'always'],
        '@stylistic/new-parens': ['error', 'always'],
        '@stylistic/newline-per-chained-call': ['error', {
            'ignoreChainWithDepth': 2
        }],
        '@stylistic/no-extra-parens': ['error', 'all'],
        '@stylistic/no-extra-semi': 'error',
        '@stylistic/no-floating-decimal': 'error',
        '@stylistic/no-mixed-operators': 'error',
        '@stylistic/no-mixed-spaces-and-tabs': 'error',
        '@stylistic/no-multi-spaces': 'error',
        '@stylistic/no-multiple-empty-lines': ['error', {
            'max': 3,
            'maxEOF': 1
        }],
        '@stylistic/no-tabs': 'error',
        '@stylistic/no-trailing-spaces': 'error',
        '@stylistic/no-whitespace-before-property': 'error',
        '@stylistic/object-curly-newline': ['error', { 'multiline': true, 'minProperties': 2 }],
        '@stylistic/object-curly-spacing': ['error', 'always'],
        '@stylistic/object-property-newline': 'error',
        '@stylistic/operator-linebreak': ['error', 'before'],
        '@stylistic/one-var-declaration-per-line': 'error',
        '@stylistic/padded-blocks': ['error', {
            'blocks': 'never',
            'classes': 'always',
            'switches': 'never',
        }],

        // Padding lines. The most in-depth part of this config
        // ['block', 'block-like', 'break', 'cjs-export', 'cjs-import', 'class', 'const', 'continue', 'debugger', 'directive', 'do', 'empty', 'export', 'expression', 'for', 'function', 'if', 'iife', 'import', 'let', 'return', 'switch', 'throw', 'try', 'var', 'while', 'with']
        '@stylistic/padding-line-between-statements': ['error', 
            // Variables, Constants
            {
                'blankLine': 'never',
                'prev': 'var',
                'next': 'var'
            },
            {
                'blankLine': 'never',
                'prev': 'let',
                'next': 'let'
            },
            {
                'blankLine': 'never',
                'prev': 'const',
                'next': 'const'
            },
            {
                'blankLine': 'always',
                'prev': 'var',
                'next': ['block', 'block-like', 'break', 'cjs-export', 'cjs-import', 'class', 'const', 'continue', 'debugger', 'directive', 'do', 'empty', 'export', 'expression', 'for', 'function', 'if', 'iife', 'import', 'let', 'return', 'switch', 'throw', 'try', 'var', 'with']
            },
            {
                'blankLine': 'always',
                'prev': 'let',
                'next': ['block', 'block-like', 'break', 'cjs-export', 'cjs-import', 'class', 'const', 'continue', 'debugger', 'directive', 'do', 'empty', 'export', 'expression', 'for', 'function', 'if', 'iife', 'import', 'return', 'switch', 'throw', 'try', 'var', 'while', 'with']
            },
            {
                'blankLine': 'always',
                'prev': 'const',
                'next': ['block', 'block-like', 'break', 'cjs-export', 'cjs-import', 'class', 'continue', 'debugger', 'directive', 'do', 'empty', 'export', 'expression', 'for', 'function', 'if', 'iife', 'import', 'let', 'return', 'switch', 'throw', 'try', 'var', 'while', 'with']
            },
            // Import
            {
                'blankLine': 'never',
                'prev': 'import',
                'next': 'import'
            },
            {
                'blankLine': 'never',
                'prev': 'cjs-import',
                'next': 'cjs-import'
            },
            {
                'blankLine': 'always',
                'prev': ['block', 'block-like', 'break', 'cjs-export', 'class', 'const', 'continue', 'debugger', 'directive', 'do', 'empty', 'export', 'expression', 'for', 'function', 'if', 'iife', 'let', 'return', 'switch', 'throw', 'try', 'var', 'while', 'with'],
                'next': 'cjs-import'
            },
            {
                'blankLine': 'always',
                'prev': 'cjs-import',
                'next': ['block', 'block-like', 'break', 'cjs-export', 'class', 'const', 'continue', 'debugger', 'directive', 'do', 'empty', 'export', 'expression', 'for', 'function', 'if', 'iife', 'let', 'return', 'switch', 'throw', 'try', 'var', 'while', 'with']
            },
            {
                'blankLine': 'always',
                'prev': ['block', 'block-like', 'break', 'cjs-export', 'class', 'const', 'continue', 'debugger', 'directive', 'do', 'empty', 'export', 'expression', 'for', 'function', 'if', 'iife', 'let', 'return', 'switch', 'throw', 'try', 'var', 'while', 'with'],
                'next': 'import'
            },
            {
                'blankLine': 'always',
                'prev': 'import',
                'next': ['block', 'block-like', 'break', 'cjs-export', 'class', 'const', 'continue', 'debugger', 'directive', 'do', 'empty', 'export', 'expression', 'for', 'function', 'if', 'iife', 'let', 'return', 'switch', 'throw', 'try', 'var', 'while', 'with']
            },
            // If
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'if'
            },
            {
                'blankLine': 'always',
                'prev': 'if',
                'next': '*'
            },
            // For
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'for'
            },
            {
                'blankLine': 'always',
                'prev': 'for',
                'next': '*'
            },
            // While
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'while'
            },
            {
                'blankLine': 'always',
                'prev': 'while',
                'next': '*'
            },
            // Functions
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'function'
            },
            {
                'blankLine': 'always',
                'prev': 'function',
                'next': '*'
            },
            // Block Statements
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'block-like'
            },
            {
                'blankLine': 'always',
                'prev': 'block-like',
                'next': '*'
            },
            // Switch
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'switch'
            },
            {
                'blankLine': 'always',
                'prev': 'switch',
                'next': '*'
            },
            // Try-Catch
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'try'
            },
            {
                'blankLine': 'always',
                'prev': 'try',
                'next': '*'
            },
            // Throw
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'throw'
            },
            {
                'blankLine': 'always',
                'prev': 'throw',
                'next': '*'
            },
            // Return
            {
                'blankLine': 'never',
                'prev': 'return',
                'next': '*'
            },
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'return'
            },
            // Export
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'export'
            },
            {
                'blankLine': 'always',
                'prev': 'export',
                'next': '*'
            },
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'cjs-export'
            },
            {
                'blankLine': 'always',
                'prev': 'cjs-export',
                'next': '*'
            },
            // Classes
            {
                'blankLine': 'always',
                'prev': '*',
                'next': 'class'
            },
            {
                'blankLine': 'always',
                'prev': 'class',
                'next': '*'
            },
        ],
        '@stylistic/quote-props': ['error', 'always'],
        '@stylistic/quotes': ['error', 'single'],
        '@stylistic/rest-spread-spacing': ['error', 'never'],
        '@stylistic/semi': ['error', 'always'],
        '@stylistic/semi-spacing': ['error', { 'before': false, 'after': true }],
        '@stylistic/semi-style': ['error', 'last'],
        '@stylistic/space-before-blocks': ['error', 'always'],
        '@stylistic/space-before-function-paren': ['error', 'always'],
        '@stylistic/space-in-parens': ['error', 'always'],
        '@stylistic/space-infix-ops': ['error', { 'int32Hint': false }],
        '@stylistic/space-unary-ops': 'error',
        '@stylistic/spaced-comment': ['error', 'always'],
        '@stylistic/template-curly-spacing': ['error', 'always'],
        '@stylistic/switch-colon-spacing': 'error',
        '@stylistic/template-curly-spacing': ['error', 'always'],
        '@stylistic/wrap-iife': ['error', 'inside'],
        '@stylistic/wrap-regex': 'error',
        '@stylistic/ts/type-annotation-spacing': 'error',
    }
}

/** @type {import('eslint').Linter.Config} */
export default tseslint.config(
    // Base JavaScript rules
    eslint.configs.recommended,
    tseslint.configs.recommended,
    style,

    // Vue support (including TS and JSX inside SFCs)
    {
        files: ['**/*.vue'],
        languageOptions: {
            sourceType: 'module',
            ecmaVersion: 'latest',
            globals: globals.browser,
            parserOptions: {
                parser: tseslint.parser,
            },
        },
        plugins: {
            'vue': vue,
            '@stylistic': stylistic,
            '@stylistic/js': stylistic,
            '@stylistic/ts': stylistic,
            '@typescript-eslint': typescript,
        },
        extends: [
            eslint.configs.recommended,
            ...vue.configs['flat/recommended']
        ],
        rules: {
            ...typescript.configs.recommended.rules,
            ...style.rules,

            // Vue specific rules
            '@stylistic/indent': 'off',
            'vue/html-indent': ['error', 4],
            'vue/html-comment-indent': ['error', 4],
            'vue/script-indent': ['error', 4, {
                "baseIndent": 1,
                "switchCase": 1
            }],
            'vue/html-self-closing': ['error', {
                "html": {
                    "void": "never",
                    "normal": "never",
                    "component": "always"
                },
                "svg": "always",
                "math": "never"
            }],
            'vue/max-attributes-per-line': ['error', {
                singleline: 3,
                multiline: 1,
            }],
        },
    },
);