import { assertType, describe, expect, test } from 'vitest'

import { getEventSelector } from '../../utils/hash/getEventSelector.js'
import { getAddress } from '../address/getAddress.js'

import { decodeEventLog } from './decodeEventLog.js'

test('Transfer()', () => {
	const event = decodeEventLog({
		abi: [
			{
				inputs: [],
				stateMutability: 'nonpayable',
				type: 'constructor',
			},
			{
				inputs: [],
				name: 'Transfer',
				type: 'event',
			},
			{
				inputs: [],
				name: 'Approve',
				type: 'event',
			},
		],
		topics: [
			'0x406dade31f7ae4b5dbc276258c28dde5ae6d5c2773c5745802c493a2360e55e0',
		],
	})
	assertType<typeof event>({ eventName: 'Transfer' })
	expect(event).toEqual({
		eventName: 'Transfer',
	})
})

test('named args: Transfer(address,address,uint256)', () => {
	const event = decodeEventLog({
		abi: [
			{
				inputs: [
					{
						indexed: true,
						name: 'from',
						type: 'address',
					},
					{
						indexed: true,
						name: 'to',
						type: 'address',
					},
					{
						indexed: false,
						name: 'tokenId',
						type: 'uint256',
					},
				],
				name: 'Transfer',
				type: 'event',
			},
		],
		data: '0x0000000000000000000000000000000000000000000000000000000000000001',
		topics: [
			'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
			'0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
			'0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
		],
	})
	assertType<typeof event>({
		eventName: 'Transfer',
		args: { from: '0x', to: '0x', tokenId: 1n },
	})
	expect(event).toEqual({
		eventName: 'Transfer',
		args: {
			from: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
			to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
			tokenId: 1n,
		},
	})
})

test('unnamed args: Transfer(address,address,uint256)', () => {
	const event = decodeEventLog({
		abi: [
			{
				inputs: [
					{
						indexed: true,
						type: 'address',
					},
					{
						indexed: true,
						type: 'address',
					},
					{
						indexed: false,
						type: 'uint256',
					},
				],
				name: 'Transfer',
				type: 'event',
			},
		],
		data: '0x0000000000000000000000000000000000000000000000000000000000000001',
		topics: [
			'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
			'0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
			'0x000000000000000000000000a5cc3c03994db5b0d9a5eedd10cabab0813678ac',
		],
	})
	assertType<typeof event>({
		eventName: 'Transfer',
		args: ['0x', '0x', 1n],
	})
	expect(event).toEqual({
		args: [
			'0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
			'0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
			1n,
		],
		eventName: 'Transfer',
	})
})

test('Foo(string)', () => {
	const event = decodeEventLog({
		abi: [
			{
				inputs: [
					{
						indexed: true,
						name: 'message',
						type: 'string',
					},
				],
				name: 'Foo',
				type: 'event',
			},
		],
		topics: [
			'0x9f0b7f1630bdb7d474466e2dfef0fb9dff65f7a50eec83935b68f77d0808f08a',
			'0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8',
		],
	})
	assertType<typeof event>({
		eventName: 'Foo',
		args: {
			message:
				'0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8',
		},
	})
	expect(event).toEqual({
		args: {
			message:
				'0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8',
		},
		eventName: 'Foo',
	})
})

test('args: eventName', () => {
	const event = decodeEventLog({
		abi: [
			{
				inputs: [
					{
						indexed: true,
						type: 'address',
					},
					{
						indexed: true,
						type: 'address',
					},
					{
						indexed: false,
						type: 'uint256',
					},
				],
				name: 'Transfer',
				type: 'event',
			},
			{
				inputs: [
					{
						indexed: true,
						name: 'message',
						type: 'string',
					},
				],
				name: 'Foo',
				type: 'event',
			},
		],
		eventName: 'Foo',
		topics: [
			'0x9f0b7f1630bdb7d474466e2dfef0fb9dff65f7a50eec83935b68f77d0808f08a',
			'0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8',
		],
	})
	assertType<typeof event>({
		eventName: 'Foo',
		args: {
			message:
				'0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8',
		},
	})
	expect(event).toEqual({
		args: {
			message:
				'0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8',
		},
		eventName: 'Foo',
	})
})

test('args: data – named (address,address,uint256)', () => {
	const event = decodeEventLog({
		abi: [
			{
				inputs: [
					{
						indexed: true,
						name: 'from',
						type: 'address',
					},
					{
						indexed: true,
						name: 'to',
						type: 'address',
					},
					{
						indexed: false,
						name: 'tokenId',
						type: 'uint256',
					},
				],
				name: 'Transfer',
				type: 'event',
			},
		],
		eventName: 'Transfer',
		data: '0x0000000000000000000000000000000000000000000000000000000000000001',
		topics: [
			'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
			'0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045',
			'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
		],
	})
	assertType<typeof event>({
		eventName: 'Transfer',
		args: {
			from: '0xd8da6bf26964af9d7eed9e03e53415d37aa96045',
			to: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
			tokenId: 1n,
		},
	})
	expect(event).toEqual({
		eventName: 'Transfer',
		args: {
			from: getAddress('0xd8da6bf26964af9d7eed9e03e53415d37aa96045'),
			to: getAddress('0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266'),
			tokenId: 1n,
		},
	})
})

test('args: data – unnamed (address,address,uint256)', () => {
	const event = decodeEventLog({
		abi: [
			{
				inputs: [
					{
						indexed: true,
						type: 'address',
					},
					{
						indexed: true,
						type: 'address',
					},
					{
						indexed: false,
						type: 'uint256',
					},
				],
				name: 'Transfer',
				type: 'event',
			},
		],
		data: '0x0000000000000000000000000000000000000000000000000000000000000001',
		eventName: 'Transfer',
		topics: [
			'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
			'0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045',
			'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
		],
	})
	assertType<typeof event>({
		eventName: 'Transfer',
		args: [
			'0xd8da6bf26964af9d7eed9e03e53415d37aa96045',
			'0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
			1n,
		],
	})
	expect(event).toEqual({
		eventName: 'Transfer',
		args: [
			getAddress('0xd8da6bf26964af9d7eed9e03e53415d37aa96045'),
			getAddress('0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266'),
			1n,
		],
	})
})

test('named: topics + event params mismatch', () => {
	expect(() =>
		decodeEventLog({
			abi: [
				{
					inputs: [
						{
							indexed: true,
							name: 'from',
							type: 'address',
						},
						{
							indexed: false,
							name: 'to',
							type: 'address',
						},
						{
							indexed: true,
							name: 'id',
							type: 'uint256',
						},
					],
					name: 'Transfer',
					type: 'event',
				},
			],
			topics: [
				'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
				'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
			],
		}),
	).toThrowErrorMatchingInlineSnapshot(
		`
    "Expected a topic for indexed event parameter \\"id\\" on event \\"Transfer(address from, address to, uint256 id)\\".

    Version: viem@1.0.2"
  `,
	)
})

test('unnamed: topics + event params mismatch', () => {
	expect(() =>
		decodeEventLog({
			abi: [
				{
					inputs: [
						{
							indexed: true,
							type: 'address',
						},
						{
							indexed: false,
							type: 'address',
						},
						{
							indexed: true,
							type: 'uint256',
						},
					],
					name: 'Transfer',
					type: 'event',
				},
			],
			topics: [
				'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
				'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
			],
		}),
	).toThrowErrorMatchingInlineSnapshot(
		`
    "Expected a topic for indexed event parameter on event \\"Transfer(address, address, uint256)\\".

    Version: viem@1.0.2"
  `,
	)
})

test('data + event params mismatch', () => {
	expect(() =>
		decodeEventLog({
			abi: [
				{
					anonymous: false,
					inputs: [
						{
							indexed: true,
							internalType: 'address',
							name: 'from',
							type: 'address',
						},
						{
							indexed: false,
							internalType: 'address',
							name: 'to',
							type: 'address',
						},
						{
							indexed: false,
							internalType: 'uint256',
							name: 'id',
							type: 'uint256',
						},
					],
					name: 'Transfer',
					type: 'event',
				},
			],
			data: '0x0000000000000000000000000000000000000000000000000000000023c34600',
			topics: [
				'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
				'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
				'0x00000000000000000000000070e8a65d014918798ba424110d5df658cde1cc58',
			],
		}),
	).toThrowErrorMatchingInlineSnapshot(`
        "Data size of 32 bytes is too small for non-indexed event parameters.

        Params: (address to, uint256 id)
        Data:   0x0000000000000000000000000000000000000000000000000000000023c34600 (32 bytes)

        Version: viem@1.0.2"
      `)

	expect(() =>
		decodeEventLog({
			abi: [
				{
					inputs: [
						{
							indexed: true,
							name: 'from',
							type: 'address',
						},
						{
							indexed: false,
							name: 'to',
							type: 'address',
						},
						{
							indexed: true,
							name: 'id',
							type: 'uint256',
						},
					],
					name: 'Transfer',
					type: 'event',
				},
			],
			topics: [
				'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
				'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
				'0x0000000000000000000000000000000000000000000000000000000000000001',
			],
		}),
	).toThrowErrorMatchingInlineSnapshot(
		`
    "Data size of 0 bytes is too small for non-indexed event parameters.

    Params: (address to)
    Data:   0x (0 bytes)

    Version: viem@1.0.2"
  `,
	)

	expect(() =>
		decodeEventLog({
			abi: [
				{
					inputs: [
						{
							indexed: true,
							name: 'from',
							type: 'address',
						},
						{
							indexed: false,
							name: 'to',
							type: 'address',
						},
						{
							indexed: true,
							name: 'id',
							type: 'uint256',
						},
					],
					name: 'Transfer',
					type: 'event',
				},
			],
			data: '0x',
			topics: [
				'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
				'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
				'0x0000000000000000000000000000000000000000000000000000000000000001',
			],
		}),
	).toThrowErrorMatchingInlineSnapshot(
		`
    "Data size of 0 bytes is too small for non-indexed event parameters.

    Params: (address to)
    Data:   0x (0 bytes)

    Version: viem@1.0.2"
  `,
	)
})

test('strict', () => {
	expect(
		decodeEventLog({
			abi: [
				{
					anonymous: false,
					inputs: [
						{
							indexed: true,
							internalType: 'address',
							name: 'from',
							type: 'address',
						},
						{
							indexed: false,
							internalType: 'address',
							name: 'to',
							type: 'address',
						},
						{
							indexed: false,
							internalType: 'uint256',
							name: 'id',
							type: 'uint256',
						},
					],
					name: 'Transfer',
					type: 'event',
				},
			],
			data: '0x0000000000000000000000000000000000000000000000000000000023c34600',
			strict: false,
			topics: [
				'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
				'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
				'0x00000000000000000000000070e8a65d014918798ba424110d5df658cde1cc58',
			],
		}),
	).toMatchInlineSnapshot(`
    {
      "args": {
        "from": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
      },
      "eventName": "Transfer",
    }
  `)

	expect(
		decodeEventLog({
			abi: [
				{
					inputs: [
						{
							indexed: true,
							name: 'from',
							type: 'address',
						},
						{
							indexed: false,
							name: 'to',
							type: 'address',
						},
						{
							indexed: true,
							name: 'id',
							type: 'uint256',
						},
					],
					name: 'Transfer',
					type: 'event',
				},
			],
			strict: false,
			topics: [
				'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
				'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
				'0x0000000000000000000000000000000000000000000000000000000000000001',
			],
		}),
	).toMatchInlineSnapshot(
		`
    {
      "args": {
        "from": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
        "id": 1n,
      },
      "eventName": "Transfer",
    }
  `,
	)
})

describe('GitHub repros', () => {
	describe('https://github.com/wagmi-dev/viem/issues/168', () => {
		test('zero data string', () => {
			const result = decodeEventLog({
				abi: [
					{
						anonymous: false,
						inputs: [
							{
								indexed: false,
								internalType: 'address',
								name: 'voter',
								type: 'address',
							},
							{
								indexed: false,
								internalType: 'bytes32',
								name: 'proposalId',
								type: 'bytes32',
							},
							{
								indexed: false,
								internalType: 'uint256',
								name: 'support',
								type: 'uint256',
							},
							{
								indexed: false,
								internalType: 'uint256',
								name: 'weight',
								type: 'uint256',
							},
							{
								indexed: false,
								internalType: 'string',
								name: 'reason',
								type: 'string',
							},
						],
						name: 'VoteCast',
						type: 'event',
					},
				],
				data: '0x000000000000000000000000d1d1d4e36117ab794ec5d4c78cbd3a8904e691d04bdc559e89b88b73d8edeea6a767041d448d8076d070facc8340621555be3ac40000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000000',
				topics: [
					'0x0c165c85edbf8f9b99d51793c9429beb9dc2b608a7f81e64623052f829657af3',
				],
			})
			expect(result).toMatchInlineSnapshot(`
        {
          "args": {
            "proposalId": "0x4bdc559e89b88b73d8edeea6a767041d448d8076d070facc8340621555be3ac4",
            "reason": "",
            "support": 1n,
            "voter": "0xd1d1D4e36117aB794ec5d4c78cBD3a8904E691D0",
            "weight": 1n,
          },
          "eventName": "VoteCast",
        }
      `)
		})
	})

	describe('https://github.com/wagmi-dev/viem/issues/197', () => {
		test('topics + event params mismatch', () => {
			expect(() =>
				decodeEventLog({
					abi: [
						{
							anonymous: false,
							inputs: [
								{
									indexed: true,
									internalType: 'address',
									name: 'from',
									type: 'address',
								},
								{
									indexed: true,
									internalType: 'address',
									name: 'to',
									type: 'address',
								},
								{
									indexed: true,
									internalType: 'uint256',
									name: 'id',
									type: 'uint256',
								},
							],
							name: 'Transfer',
							type: 'event',
						},
					],
					data: '0x0000000000000000000000000000000000000000000000000000000023c34600',
					topics: [
						'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
						'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
						'0x00000000000000000000000070e8a65d014918798ba424110d5df658cde1cc58',
					],
				}),
			).toThrowErrorMatchingInlineSnapshot(
				`
        "Expected a topic for indexed event parameter \\"id\\" on event \\"Transfer(address from, address to, uint256 id)\\".

        Version: viem@1.0.2"
      `,
			)
		})
	})

	describe('https://github.com/wagmi-dev/viem/issues/323', () => {
		test('data + params mismatch', () => {
			expect(() =>
				decodeEventLog({
					abi: [
						{
							anonymous: false,
							inputs: [
								{
									indexed: true,
									internalType: 'address',
									name: 'from',
									type: 'address',
								},
								{
									indexed: false,
									internalType: 'address',
									name: 'to',
									type: 'address',
								},
								{
									indexed: false,
									internalType: 'uint256',
									name: 'id',
									type: 'uint256',
								},
							],
							name: 'Transfer',
							type: 'event',
						},
					],
					data: '0x0000000000000000000000000000000000000000000000000000000023c34600',
					topics: [
						'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
						'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
						'0x00000000000000000000000070e8a65d014918798ba424110d5df658cde1cc58',
					],
				}),
			).toThrowErrorMatchingInlineSnapshot(`
        "Data size of 32 bytes is too small for non-indexed event parameters.

        Params: (address to, uint256 id)
        Data:   0x0000000000000000000000000000000000000000000000000000000023c34600 (32 bytes)

        Version: viem@1.0.2"
      `)
		})
	})

	describe('https://github.com/wagmi-dev/viem/issues/1336', () => {
		test('topics + event params mismatch', () => {
			expect(() =>
				decodeEventLog({
					abi: [
						{
							anonymous: false,
							inputs: [
								{
									indexed: true,
									internalType: 'uint256',
									name: 'nounId',
									type: 'uint256',
								},
								{
									indexed: false,
									internalType: 'uint256',
									name: 'startTime',
									type: 'uint256',
								},
								{
									indexed: false,
									internalType: 'uint256',
									name: 'endTime',
									type: 'uint256',
								},
							],
							name: 'AuctionCreated',
							type: 'event',
						},
					],
					data: '0x00000000000000000000000000000000000000000000000000000000000000680000000000000000000000000000000000000000000000004563918244f400000000000000000000000000000000000000000000000000000000000062845fba',
					topics: [
						'0xd6eddd1118d71820909c1197aa966dbc15ed6f508554252169cc3d5ccac756ca',
					],
				}),
			).toThrowErrorMatchingInlineSnapshot(
				`
        "Expected a topic for indexed event parameter \\"nounId\\" on event \\"AuctionCreated(uint256 nounId, uint256 startTime, uint256 endTime)\\".

        Version: viem@1.0.2"
      `,
			)
		})
	})
})

test("errors: event doesn't exist", () => {
	expect(() =>
		decodeEventLog({
			abi: [
				{
					inputs: [
						{
							indexed: true,
							name: 'message',
							type: 'string',
						},
					],
					name: 'Bar',
					type: 'event',
				},
			],
			topics: [
				'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
				'0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8',
			],
		}),
	).toThrowErrorMatchingInlineSnapshot(`
    "Encoded event signature \\"0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef\\" not found on ABI.
    Make sure you are using the correct ABI and that the event exists on it.
    You can look up the signature here: https://openchain.xyz/signatures?query=0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef.

    Docs: https://viem.sh/docs/contract/decodeEventLog.html
    Version: viem@1.0.2"
  `)
})

test('errors: no topics', () => {
	expect(() =>
		decodeEventLog({
			abi: [
				{
					inputs: [
						{
							indexed: true,
							name: 'message',
							type: 'string',
						},
					],
					name: 'Bar',
					type: 'event',
				},
			],
			topics: [],
		}),
	).toThrowErrorMatchingInlineSnapshot(`
    "Cannot extract event signature from empty topics.

    Docs: https://viem.sh/docs/contract/decodeEventLog.html
    Version: viem@1.0.2"
  `)
})

test('errors: invalid data size', () => {
	expect(() =>
		decodeEventLog({
			abi: [
				{
					inputs: [
						{
							indexed: true,
							name: 'from',
							type: 'address',
						},
						{
							indexed: true,
							name: 'to',
							type: 'address',
						},
						{
							indexed: false,
							name: 'tokenId',
							type: 'uint256',
						},
					],
					name: 'Transfer',
					type: 'event',
				},
			],
			data: '0x1',
			eventName: 'Transfer',
			topics: [
				'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
				'0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045',
				'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
			],
		}),
	).toThrowErrorMatchingInlineSnapshot(`
    "Data size of 1 bytes is too small for non-indexed event parameters.

    Params: (uint256 tokenId)
    Data:   0x1 (1 bytes)

    Version: viem@1.0.2"
  `)
})

test('errors: invalid bool', () => {
	expect(() =>
		decodeEventLog({
			abi: [
				{
					inputs: [
						{
							indexed: true,
							name: 'from',
							type: 'address',
						},
						{
							indexed: true,
							name: 'to',
							type: 'address',
						},
						{
							indexed: false,
							name: 'sender',
							type: 'bool',
						},
					],
					name: 'Transfer',
					type: 'event',
				},
			],
			data: '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
			eventName: 'Transfer',
			topics: [
				getEventSelector('Transfer(address,address,bool)'),
				'0x000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045',
				'0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266',
			],
		}),
	).toThrowErrorMatchingInlineSnapshot(`
    "Hex value \\"0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef\\" is not a valid boolean. The hex value must be \\"0x0\\" (false) or \\"0x1\\" (true).

    Version: viem@1.0.2"
  `)
})